cmake: allow to oversubscribe the machine during MPI tests #33
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
andrea-iob
force-pushed
the
cmake.allow.MPI.oversubscribe
branch
from
24b0a81
to
69aef8b
Compare
marcocisternino
approved these changes
Jan 13, 2020
Beginning with version 3.0, OpenMPI's mpirun refuses to start more processes than there are physical processor cores on the machine. To allow oversubcribing, the 'OMPI_MCA_rmaps_base_oversubscribe' environment variable can be set to 1.
andrea-iob
force-pushed
the
cmake.allow.MPI.oversubscribe
branch
from
69aef8b
to
c88160a
Compare
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Outdated suggestions cannot be applied.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.
Beginning with version 3.0, OpenMPI's mpirun refuses to start more processes than there are physical processor cores on the machine.
To allow oversubcribing, the 'OMPI_MCA_rmaps_base_oversubscribe' environment variable can be set to 1.