ElementWise

#include <popops/ElementWise.hpp>

These functions perform the same operation on each element of one or more tensors.

Every function has an in-place overload that writes the result of the function to the first tensor argument of the function.

The functions that perform operations on two tensors also have overloads for one of the tensors being a constant scalar. These functions perform the same operation on each element in the remaining tensor using the scalar as the other side of the operation for all elements.

namespace poputil

General utility functions for building graphs.

Functions

template<> poplar::ProfileValue toProfileValue(const popops::expr::UnaryOpType &op)

template<> poplar::ProfileValue toProfileValue(const popops::expr::BinaryOpType &op)

template<> poplar::ProfileValue toProfileValue(const popops::expr::TernaryOpType &op)

namespace popops

Common functions, such as elementwise and reductions.

Unnamed Group

poplar::Tensor varianceToInvStdDev(poplar::Graph &graph, const poplar::Tensor &src, const poplar::Tensor &epsilon, poplar::program::Sequence &prog, const poplar::Type dstType = poplar::HALF, const poplar::DebugContext &debugContext = {})

Convert variance to inverse standard deviation.

Parameters

graph – The graph to update.
src – The source tensor.
epsilon – A tensor initialised with the epsilon parameter used in conversion. Must have a single element and have the same type as the input type. Alternatively a float value can be used and the appropriate tensor will be created.
prog – The sequence to extend with the execution of conversion.
dstType – The type of the tensor to be output. Must be HALF or equal to the input type.
debugContext – Optional debug information

Returns

A tensor where each element is the inverse of standard deviation. Each element is the result of b = sqrt(1 / a), where a and b are the corresponding elements of src and the result tensor respectively.

poplar::Tensor varianceToInvStdDev(poplar::Graph &graph, const poplar::Tensor &src, const float epsilon, poplar::program::Sequence &prog, const poplar::Type dstType = poplar::HALF, const poplar::DebugContext &debugContext = {})

Unnamed Group

poplar::Tensor invStdDevToVariance(poplar::Graph &graph, const poplar::Tensor &src, const poplar::Tensor &epsilon, poplar::program::Sequence &prog, const poplar::Type dstType = poplar::FLOAT, const poplar::DebugContext &debugContext = {})

Convert inverse standard deviation to variance.

Parameters

graph – The graph to update.
src – The source tensor.
epsilon – A tensor initialised with the epsilon parameter used in conversion. Must have a single element and have the same type as the input type. Alternatively, a float value can be used and the appropriate tensor will be created.
prog – The sequence to extend with the execution of conversion.
dstType – The type of the tensor to be output. Must be FLOAT or equal to the input type.
debugContext – Optional debug information

Returns

A tensor where each element is the variance. Each element is the result of b = (1 / a) ^ 2, where a and b are the corresponding elements of src and the result tensor respectively.

poplar::Tensor invStdDevToVariance(poplar::Graph &graph, const poplar::Tensor &src, const float epsilon, poplar::program::Sequence &prog, const poplar::Type dstType = poplar::FLOAT, const poplar::DebugContext &debugContext = {})

Unnamed Group

poplar::Tensor map(poplar::Graph &graph, const expr::Expr &expr, const std::vector<poplar::Tensor> &ts, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Map an expression across tensors.

Element Wise Options

enableGenerateCodelet (true, false) [=true]

If true (and all of the inputs are the same size and do not alias), a codelet is generated to execute this map operation. A codelet will not be generated if there is only a single operation unless forceGenerateCodelet is true.

Parameters

graph – The graph to update.
expr – The expression to map across the tensors. The placeholders in the expressions will be substituted with corresponding elements from the tensors in ts.
ts – The list of tensors to map the expression across. If elements from these tensors are used in binary/ternary operations in the expression the numpy-style broadcast rules are used to match the shapes of the tensors (see poputil::broadcastToMatch()).
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – A list of flags to pass to the expression evaluator.

Returns

A tensor containing the elements resulting from the application of the expression across the tensors.

inline poplar::Tensor map(poplar::Graph &graph, expr::UnaryOpType op, const poplar::Tensor &t, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

inline poplar::Tensor map(poplar::Graph &graph, expr::BinaryOpType op, const poplar::Tensor &a, const poplar::Tensor &b, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

inline poplar::Tensor map(poplar::Graph &graph, expr::TernaryOpType op, const poplar::Tensor &a, const poplar::Tensor &b, const poplar::Tensor &c, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

void mapInPlace(poplar::Graph &graph, const expr::Expr &expr, const std::vector<poplar::Tensor> &ts, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensors with the result of map().

inline void mapInPlace(poplar::Graph &graph, expr::UnaryOpType op, const poplar::Tensor &t, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

inline void mapInPlace(poplar::Graph &graph, expr::BinaryOpType op, const poplar::Tensor &a, const poplar::Tensor &b, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

inline void mapInPlace(poplar::Graph &graph, expr::TernaryOpType op, const poplar::Tensor &a, const poplar::Tensor &b, const poplar::Tensor &c, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor abs(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the absolute value of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::abs(a), where a is an element of A.

inline void absInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of abs().

Unnamed Group

template<typename constType> inline void checkTypes(poplar::Type elementType, constType)

Check that the host compile-time type constType is compatible with the run-time IPU type elementType.

Parameters

elementType – The run-time IPU type.
constant – Unused.

Template Parameters

constType – The host compile-time type.

Throws

std::runtime_error – If the types are not compatible.

template<> inline void checkTypes<float>(poplar::Type elementType, float)

template<> inline void checkTypes<double>(poplar::Type elementType, double)

Unnamed Group

inline poplar::Tensor add(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Add each element in A to the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a + b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor add(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor add(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void addInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of add().

template<typename constType> inline void addInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor atan2(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the two argument arctangent of each element in A with the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is the result of atan2(a, b), where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor atan2(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor atan2(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void atan2InPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of atan2().

template<typename constType> inline void atan2InPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor bitwiseAnd(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the bitwise AND of each element in A with the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a & b, where a and bare the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor bitwiseAnd(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor bitwiseAnd(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void bitwiseAndInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of bitwiseAnd().

template<typename constType> inline void bitwiseAndInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor bitwiseOr(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the bitwise OR of each element in A with the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a | b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor bitwiseOr(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor bitwiseOr(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void bitwiseOrInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of bitwiseOr().

template<typename constType> inline void bitwiseOrInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor bitwiseXor(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the bitwise XOR of each element in A with the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a ^ b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor bitwiseXor(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor bitwiseXor(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void bitwiseXorInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of bitwiseXor().

template<typename constType> inline void bitwiseXorInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor bitwiseXnor(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the bitwise XNOR of each element in A with the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is the result of !(a ^ b), where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor bitwiseXnor(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor bitwiseXnor(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void bitwiseXnorInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of bitwiseXnor().

template<typename constType> inline void bitwiseXnorInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor div(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Divide each element in A by the corresponding element in B.

Parameters

graph – The graph to update.
A – The tensor of dividends.
B – The tensor of divisors.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a / b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor div(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor div(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void divInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of div().

template<typename constType> inline void divInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor eq(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Check if each element in A is equal to the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a == b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor eq(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor eq(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void eqInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of eq().

template<typename constType> inline void eqInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor gteq(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Check if each element in A is greater than or equal to the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a >= b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor gteq(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor gteq(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void gteqInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of gteq().

template<typename constType> inline void gteqInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor gt(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Check if each element in A is greater than the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a > b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor gt(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor gt(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void gtInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of gt().

template<typename constType> inline void gtInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor invStdDevToVariance(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Convert the inverse standard deviation to variance.

Parameters

graph – The graph to update.
A – The source tensor.
B – The destination tensor.
prog – The sequence to extend with the execution of conversion.
debugContext – Optional debug information.
options – A list of flags to pass to the expression evaluator.

Returns

A tensor where each element is the variance. Each element is the result of b = (1 / a) ^ 2, where a and b are the corresponding elements of A and B tensors respectively, and where A represents the inverse standard deviation and B the variance.

template<typename constType> inline poplar::Tensor invStdDevToVariance(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor invStdDevToVariance(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void invStdDevToVarianceInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of invStdDevToVariance().

template<typename constType> inline void invStdDevToVarianceInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor lteq(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Check if each element in A is less than or equal to the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a <= b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor lteq(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor lteq(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void lteqInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of lteq().

template<typename constType> inline void lteqInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor logicalAnd(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the logical AND (&&) of each element in A with the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a && b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor logicalAnd(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor logicalAnd(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void logicalAndInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of logicalAnd().

template<typename constType> inline void logicalAndInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor logicalOr(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the logical OR (||) of each element in A with the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a || b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor logicalOr(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor logicalOr(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void logicalOrInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of logicalOr().

template<typename constType> inline void logicalOrInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor lt(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Check if each element in A is less than the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a < b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor lt(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor lt(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void ltInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of lt().

template<typename constType> inline void ltInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor max(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the maximum of each element in A with the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is the result of max(a, b), where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor max(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor max(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void maxInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of max().

template<typename constType> inline void maxInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor min(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the minimum of each element in A with the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is the result of min(a, b), where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor min(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor min(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void minInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of min().

template<typename constType> inline void minInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor mul(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Multiply each element in A by the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a * b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor mul(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor mul(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void mulInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of mul().

template<typename constType> inline void mulInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor neq(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Check if each element in A is not equal to the corresponding element in B.

Parameters

graph – The graph to update.
A – A tensor of elements.
B – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is the result of a != b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor neq(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor neq(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void neqInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of neq().

template<typename constType> inline void neqInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor pow(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute each element in A to the power of the corresponding element in B.

Parameters

graph – The graph to update.
A – The tensor of bases.
B – The tensor of exponents.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is equal to pow(a, b), where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor pow(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor pow(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void powInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of pow().

template<typename constType> inline void powInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor rem(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the remainder of each element in A divided by the corresponding element in B.

Parameters

graph – The graph to update.
A – The tensor of dividends.
B – The tensor of divisors.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is equal to a % b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor rem(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor rem(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void remInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of rem().

template<typename constType> inline void remInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor shiftLeft(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Shift the elements of A left by the corresponding elements of B.

Parameters

graph – The graph to update.
A – The tensor of elements which to left-shift.
B – The tensor of elements that describe the amount to left-shift A by.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is equal to a << b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor shiftLeft(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor shiftLeft(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void shiftLeftInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of shiftLeft().

template<typename constType> inline void shiftLeftInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor shiftRight(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Shift the elements of A right by the corresponding elements of B.

Parameters

graph – The graph to update.
A – The tensor of elements which to right-shift.
B – The tensor of elements that describe the amount to right-shift by. A.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is equal to a >> b (without sign extension), where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor shiftRight(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor shiftRight(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void shiftRightInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of shiftRight().

template<typename constType> inline void shiftRightInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor shiftRightSignExtend(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Shift the elements of A right with sign extension by the corresponding elements of B.

Parameters

graph – The graph to update.
A – The tensor of elements which to right-shift.
B – The tensor of elements that describe the amount to right-shift A by.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is equal to a >> b with sign extension, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor shiftRightSignExtend(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor shiftRightSignExtend(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void shiftRightSignExtendInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of shiftRightSignExtend().

template<typename constType> inline void shiftRightSignExtendInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor sub(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Subtract the elements of B from A and return the result in a new tensor.

Parameters

graph – The graph to update.
A – The tensor of elements which will be subtracted from.
B – The tensor of elements to subtract from A.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor where each element is equal to a - b, where a and b are the corresponding elements of A and B tensors respectively.

template<typename constType> inline poplar::Tensor sub(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor sub(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void subInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of sub().

template<typename constType> inline void subInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline poplar::Tensor varianceToInvStdDev(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Convert variance to inverse standard deviation.

Parameters

graph – The graph to update.
A – The source tensor.
B – The destination tensor.
prog – The sequence to extend with the execution of conversion.
debugContext – Optional debug information.

Returns

A tensor where each element is the inverse of standard deviation. Each element is the result of b = sqrt(1 / a), where a and b are the corresponding elements of A and B tensors respectively, and where A represents the variance and B the inverse standard deviation.

template<typename constType> inline poplar::Tensor varianceToInvStdDev(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

template<typename constType> inline poplar::Tensor varianceToInvStdDev(poplar::Graph &graph, const constType A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Unnamed Group

inline void varianceToInvStdDevInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of varianceToInvStdDev().

template<typename constType> inline void varianceToInvStdDevInPlace(poplar::Graph &graph, const poplar::Tensor &A, const constType B, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Functions

inline poplar::Tensor asin(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the arc-sine of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::asin(a), where a is an element of A.

inline void asinInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of asin().

inline poplar::Tensor bitwiseNot(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the bitwise NOT operation for each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of ~a, where a is an element of A.

inline void bitwiseNotInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of bitwiseNot().

inline poplar::Tensor cbrt(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the cube-root for each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::cbrt(a), where a is an element of A.

inline void cbrtInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of cbrt().

inline poplar::Tensor ceil(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the ceiling of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::ceil(a), where a is an element of A.

inline void ceilInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of ceil().

inline poplar::Tensor countLeadingZeros(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the number of binary leading zeros of each element in A.

Note

If the element is zero then it is treated as 32 leading zeros.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of a ? __builtin_clz(a) : 32, where a is an element of A.

inline void countLeadingZerosInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of countLeadingZeros().

inline poplar::Tensor cos(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the cosine of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::cos(a), where a is an element of A.

inline void cosInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of cos().

inline poplar::Tensor erf(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the error function of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::erf(a), where a is an element of A.

inline void erfInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of erf().

inline poplar::Tensor exp(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the exponential of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::exp(a), where a is an element of A.

inline void expInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of exp().

inline poplar::Tensor expm1(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the exponential of each element in A minus one.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::expm1(a), where a is an element of A.

inline void expm1InPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of expm1().

inline poplar::Tensor floor(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the floor of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::floor(a), where a is an element of A.

inline void floorInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of floor().

inline poplar::Tensor inv(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the inverse of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of 1 / a, where a is an element of A.

inline void invInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of inv().

inline poplar::Tensor log(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the log base-e of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::log(a), where a is an element of A.

inline void logInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of log().

inline poplar::Tensor log1p(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the log base-e of each element in A plus one.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::log1p(a), where a is an element of A.

inline void log1pInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of log1p().

inline poplar::Tensor logicalNot(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the logical NOT of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of !a, where a is an element of A.

inline void logicalNotInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of logicalNot().

inline poplar::Tensor neg(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the negation of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of -1 * a, where a is an element of A.

inline void negInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of neg().

inline poplar::Tensor popcount(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the number of 1 bits in each element of A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::popcount(a), where a is an element of A.

inline void popcountInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of popcount().

inline poplar::Tensor signum(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the signum of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is one of -1, 0 or +1 if the corresponding element in A was less than, equal to or greater than 0 respectively.

inline void signumInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of signum().

inline poplar::Tensor sin(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the sine of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::sin(a), where a is an element of A.

inline void sinInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of sin().

inline poplar::Tensor tan(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the tangent of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::tan(a), where a is an element of A.

inline void tanInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of tan().

inline poplar::Tensor tanh(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the hyperbolic tangent of each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::tanh(a), where a is an element of A.

inline void tanhInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of tanh().

inline poplar::Tensor round(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Round each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::round(a), where a is an element of A.

inline void roundInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of round().

inline poplar::Tensor sqrt(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the square-root for each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::sqrt(a), where a is an element of A.

inline void sqrtInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of sqrt().

inline poplar::Tensor square(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the square for each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of x * x, where a is an element of A.

inline void squareInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of square().

inline poplar::Tensor sigmoid(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the sigmoid (logistic) function for each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of 1 / (1 + exp(-x)), where a is an element of A.

inline void sigmoidInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of sigmoid().

inline poplar::Tensor rsqrt(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Compute the reciprocal square root for each element in A.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of 1 / sqrt(a), where a is an element of A.

inline void rsqrtInPlace(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of rsqrt().

inline poplar::Tensor isFinite(poplar::Graph &graph, const poplar::Tensor &A, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Check if each element in A is finite.

Parameters

graph – The graph to update.
A – A tensor of elements.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information
options – Element-wise options. See map().

Returns

A tensor where each element is equivalent to the result of std::isfinite(a), where a is an element of A.

inline poplar::Tensor select(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, const poplar::Tensor &C, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Populate the returned tensor with elements from A or B depending on the corresponding element of C.

That is, for each element in the output compute c ? a : b, where a, b and c are the corresponding elements in the tensors A, B, C respectively.

Parameters

graph – The graph to update.
A – One of the tensors containing the elements to select from.
B – One of the tensors containing the elements to select from.
C – The tensor containing the elements to use as predicates.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor containing the elements from A where the corresponding elements in C were not equal to zero and containing the elements from B where the corresponding elements in C were zero.

inline void selectInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, const poplar::Tensor &C, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of select().

inline poplar::Tensor clamp(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, const poplar::Tensor &C, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {})

Populate the returned tensor with elements from A but clamp them such that each element is greater than or equal to the corresponding element in B and less than or equal to the corresponding element in C.

That is, for each element in the returned tensor compute: min(max(a, b), c), where a, and c are the corresponding elements in the tensors A, B and C respectively.

Parameters

graph – The graph to update.
A – The tensor containing the elements to clamp.
B – The tensor containing the elements to use as minimums.
C – The tensor containing the elements to use as maximums.
prog – The sequence to extend with the execution of the expression evaluation.
debugContext – Optional debug information.
options – Element-wise options. See map().

Returns

A tensor containing the elements resulting from the application of the expression across the tensors.

inline void clampInPlace(poplar::Graph &graph, const poplar::Tensor &A, const poplar::Tensor &B, const poplar::Tensor &C, poplar::program::Sequence &prog, const poplar::DebugContext &debugContext = {}, const poplar::OptionFlags &options = {}): Update the input tensor with the result of clamp().