Add device guard around MPI operations #22446
Closed
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
If the current CUDA device is not the same as the device that hosts the tensor the operation works on then OpenMPI will segfault, as reported in pytorch#21922. This changes adds a device guard for every operation to ensure the correct device is set. Fixes pytorch#21922.
pytorchbot
added
the
oncall: distributed
pietern
added
the
triaged
mrshenli
approved these changes
Jul 2, 2019
There was a problem hiding this comment.
@pietern is landing this pull request. If you are a Facebook employee, you can view this diff on Phabricator.
xzhu1900
pushed a commit
to xzhu1900/pytorch
that referenced
this pull request
Jul 5, 2019
Summary: If the current CUDA device is not the same as the device that hosts the tensor the operation works on then OpenMPI will segfault, as reported in pytorch#21922. This changes adds a device guard for every operation to ensure the correct device is set. Fixes pytorch#21922. Pull Request resolved: pytorch#22446 Differential Revision: D16106823 Pulled By: pietern fbshipit-source-id: 99d762eb3851c0a0e0b4fe81cf27c1c8d35596cc
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
If the current CUDA device is not the same as the device that hosts
the tensor the operation works on then OpenMPI will segfault, as
reported in #21922. This changes adds a device guard for every
operation to ensure the correct device is set.
Fixes #21922.