pytorch / pytorch/gloo

Cannot run with SoftRoCE

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#128 2 comments 0 reactions 0 assignees View on GitHub

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Dominant language
C++
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Description

Hello!

It seems fine to run Gloo with RoCE, but it seems to be stuck with SoftRoCE.

It should just run out of box but it looks like it cannot get pass send. The rendezvous seems fine.

Do you have any ideas?

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing Gloo with SoftRoCE and compare it with the working RoCE setup described in the issue. Check whether rendezvous completes and where the send operation stops. Done means identifying the SoftRoCE-specific cause and confirming that a multi-machine run progresses past send.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
distributed-systems, networking
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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