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PopEF: User Guide
Version: latest
  • 1. Introduction
  • 2. PopEF file format
    • 2.1. Blob header
    • 2.2. Poplar executable
    • 2.3. Metadata
      • 2.3.1. Target runtime
      • 2.3.2. Program flow
      • 2.3.3. Anchors
    • 2.4. Tensor and feed data
    • 2.5. Opaque
    • 2.6. PopEF file analysis
  • 3. PopEF library usage
    • 3.1. Writing a PopEF stream
    • 3.2. Multi-feed writers
    • 3.3. Reading PopEF streams
  • 4. Model handling
    • 4.1. Exporting models
      • 4.1.1. Overview
      • 4.1.2. How to export
      • 4.1.3. Poplar executable
    • 4.2. Importing models
      • 4.2.1. Model management
  • 5. PopEF C++ API reference
    • 5.1. Metadata
    • 5.2. Classes for writing PopEF streams
    • 5.3. Classes for reading PopEF streams
    • 5.4. Model representation classes
    • 5.5. Error classes
  • 6. PopEF Python API reference
    • 6.1. PopEF Metadata
    • 6.2. Classes for writing PopEF streams
    • 6.3. Classes for reading PopEF streams
    • 6.4. Model representation classes
  • 7. Environment variables
    • 7.1. POPEF_LOG_DEST
    • 7.2. POPEF_LOG_LEVEL
  • 8. Trademarks & copyright
PopEF: User Guide

Search help

Note: Searching from the top-level index page will search all documents. Searching from a specific document will search only that document.

  • Find an exact phrase: Wrap your search phrase in "" (double quotes) to only get results where the phrase is exactly matched. For example "PyTorch for the IPU" or "replicated tensor sharding"
  • Prefix query: Add an * (asterisk) at the end of any word to indicate a prefix query. This will return results containing all words with the specific prefix. For example tensor*
  • Fuzzy search: Use ~N (tilde followed by a number) at the end of any word for a fuzzy search. This will return results that are similar to the search word. N specifies the “edit distance” (fuzziness) of the match. For example Polibs~1
  • Words close to each other: ~N (tilde followed by a number) after a phrase (in quotes) returns results where the words are close to each other. N is the maximum number of positions allowed between matching words. For example "ipu version"~2
  • Logical operators. You can use the following logical operators in a search:
    • + signifies AND operation
    • | signifies OR operation
    • - negates a single word or phrase (returns results without that word or phrase)
    • () controls operator precedence

8. Trademarks & copyright

Graphcloud®, Graphcore®, Poplar® and PopVision® are registered trademarks of Graphcore Ltd.

Bow™, Bow-2000™, Bow Pod™, Colossus™, In-Processor-Memory™, IPU-Core™, IPU-Exchange™, IPU-Fabric™, IPU-Link™, IPU-M2000™, IPU-Machine™, IPU-POD™, IPU-Tile™, PopART™, PopDist™, PopLibs™, PopRun™, PopTorch™, Streaming Memory™ and Virtual-IPU™ are trademarks of Graphcore Ltd.

All other trademarks are the property of their respective owners.

This software is made available under the terms of the Graphcore End User License Agreement (EULA) and the Graphcore Container License Agreement. Please ensure you have read and accept the terms of the corresponding license before using the software. The Graphcore EULA applies unless indicated otherwise.

© Copyright 2021-2022, Graphcore Ltd. All rights reserved.

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