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Perf Model Modeling Critical Path of Sparse Arch#2896

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micrain wants to merge 1 commit intometa-pytorch:mainfrom
micrain:export-D73207877
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Perf Model Modeling Critical Path of Sparse Arch#2896
micrain wants to merge 1 commit intometa-pytorch:mainfrom
micrain:export-D73207877

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@micrain micrain commented Apr 19, 2025

Summary: Update the critical path definition in the planner logs to match what we think is the most realistic option. See the docstring for the detailed modeling.

Differential Revision: D73207877

@facebook-github-bot facebook-github-bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Apr 19, 2025
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This pull request was exported from Phabricator. Differential Revision: D73207877

Summary:

Update the critical path definition in the planner logs to match what we think is the most realistic option. See the docstring for the detailed modeling.

The goal is to later feed this into the proposer and partitioner to test if we can improve upon the current greedy algorithm used with the new perf model. 

We will also replace a [similar version](https://www.internalfb.com/code/fbsource/[50e47c413eb3d4e00facb9df71592f9aa81d8aee]/fbcode/torchrec/distributed/planner/stats.py?lines=1071) of this function in the stats.py to avoid duplicating the logic.

Differential Revision: D73207877
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This pull request was exported from Phabricator. Differential Revision: D73207877

micrain pushed a commit to micrain/torchrec that referenced this pull request Apr 19, 2025
Summary:

Update the critical path definition in the planner logs to match what we think is the most realistic option. See the docstring for the detailed modeling.

The goal is to later feed this into the proposer and partitioner to test if we can improve upon the current greedy algorithm used with the new perf model. 

We will also replace a [similar version](https://www.internalfb.com/code/fbsource/[50e47c413eb3d4e00facb9df71592f9aa81d8aee]/fbcode/torchrec/distributed/planner/stats.py?lines=1071) of this function in the stats.py to avoid duplicating the logic.

Differential Revision: D73207877
@TroyGarden TroyGarden closed this Jun 21, 2025
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3 participants