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

1. Introduction

PopVision™ is a suite of graphical application-analysis tools. You can download these from the PopVision tools web page.

The PopVision™ Graph Analyser helps you get a deep understanding of how your applications are performing and utilising the IPU resources. It shows data about the graph program, memory use, and the time spent on code execution and communication.

The PopVision™ System Analyser provides information about the behaviour of the host-side application code. It shows an interactive graphical view of the timeline of execution steps, helping you to identify any bottlenecks between the host servers and IPUs.

The PopVision analysis library (libpva) can be used for programmatic analysis of Poplar profiling information.