mtl/ofi: fix problem with mprobe/mrecv #4533
Merged
Conversation
This file contains hidden or 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
At least with some providers (sockets and GNI), the mprobe/mrecv ofi mtl methods were incorrect. For these two providers at least one must supply the original tag and mask bits used with the prior FI_PEEK | FI_CLAIM request that had been used to probe for the message. These providers take a strict interpretation of the following sentence from the libfabric fi_tagged man page: ``` Claimed messages can only be retrieved using a subsequent, paired receive operation with the FI_CLAIM flag set. ``` Signed-off-by: Howard Pritchard <[email protected]>
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Outdated suggestions cannot be applied.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.
At least with some providers (sockets and GNI), the mprobe/mrecv
ofi mtl methods were incorrect. For these two providers at least
one must supply the original tag and mask bits used with the
prior FI_PEEK | FI_CLAIM request that had been used to probe for
the message.
These providers take a strict interpretation of the following sentence
from the libfabric fi_tagged man page:
Signed-off-by: Howard Pritchard [email protected]