TargetType
#include <poplar/TargetType.hpp>
-
namespace poplar
Poplar classes and functions.
A VectorList is a list of vectors with a specific layout and with the usage semantics of a 2D vector.
A 1D vector must be laid out in a contiguous memory region. A 2D vector is a vector of 1D vectors. Each of these 1D vectors that make up a 2D vector is called a “sub-vector” for the remainder of this document. The elements of a 2D vector can be accessed by indexing the 2D vector along the
outer
andinner
dimensions asA[outer][inner]
.The following two categories of layouts are supported:
VectorListLayout::DELTANELEMENTS
is a memory efficient 2D vector layout. For legacy systemsVectorListLayout::DELTAN
served a similar purpose. Each sub-vector must be laid out as a contiguous memory region but the sub-vectors may may not be laid out contiguous with respect to each other in memory. Each sub-vector may have a different length.VectorListLayout::ONE_PTR
and otherVectorListLayout
layouts that are prefixed by SCALED_PTR are for Poplar runtime use only.
Enums
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enum class TargetType
Enum to represent the type of a device capable of running a graph.
Values:
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enumerator IPU
Run on real IPU hardware.
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enumerator IPU_MODEL
Model of the IPU which actually runs on the CPU but behaves like an IPU.
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enumerator CPU
Run code on the CPU.
This does not accurately replicate all the functionality of an IPU and should only be used for running simple tests.
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enumerator IPU
Functions
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std::string toString(TargetType t)
Convert the target type to a string.
Throws an exception if an undefined type is passed, for example
static_cast<TargetType>(100)
.