coll/libnbc: add recursive doubling algorithm for MPI_Iexscan #5718
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
|
I think that more discussion on dynamic algorithm selection in the libnbc is needed. For example: use approach from the coll/tuned (dynamic decisions) in the libnbc or add non-blocking collectives into the coll/tuned. |
Implements recursive doubling algorithm for MPI_Iexscan. The algorithm preserves order of operations so it can be used both by commutative and non-commutative operations. The MCA parameter 'coll_libnbc_iexscan_algorithm' was added for dynamic algorithm selection. Signed-off-by: Mikhail Kurnosov <mkurnosov@gmail.com>
mkurnosov
force-pushed
the
coll-iexscan-recursivedoubling
branch
from
d880e17 to
dfe203e
Compare
mkurnosov
force-pushed
the
coll-iexscan-recursivedoubling
branch
2 times, most recently
from
1b15cd6 to
dfe203e
Compare
Signed-off-by: Mikhail Kurnosov <mkurnosov@gmail.com>
|
@hjelmn I resolved merge conflicts. This PR is ready for merge. |
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Outdated suggestions cannot be applied.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.
Implements recursive doubling algorithm for MPI_Iexscan. The algorithm preserves order of operations so it can be used both by commutative and non-commutative operations.
The MCA parameter
coll_libnbc_iexscan_algorithmwas added for dynamic algorithm selection.Signed-off-by: Mikhail Kurnosov mkurnosov@gmail.com