coll_tuned_use_dynamic_rules wrong scoping for tools interface #12593
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burlen
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Jun 25, 2024
This changes the scope so that these are settable via MPI_T interface. In particular making the `use_dynamic_rules` variable settable enables the variables needed for run time tuning of the individual collectives. resolves open-mpi#12593
This was referenced Oct 16, 2024
burlen
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Oct 16, 2024
This changes the scope so that these are settable via MPI_T interface. In particular making the `use_dynamic_rules` variable settable enables the variables needed for run time tuning of the individual collectives. resolves open-mpi#12593 Signed-off-by: Burlen Loring <bloring@nvidia.com> (cherry picked from commit a5fe137)
janjust
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Oct 28, 2024
This changes the scope so that these are settable via MPI_T interface. In particular making the `use_dynamic_rules` variable settable enables the variables needed for run time tuning of the individual collectives. resolves #12593 Signed-off-by: Burlen Loring <bloring@nvidia.com> (cherry picked from commit a5fe137)
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Background information
What version of Open MPI are you using? (e.g., v4.1.6, v5.0.1, git branch name and hash, etc.)
v5.0.3
Describe how Open MPI was installed (e.g., from a source/distribution tarball, from a git clone, from an operating system distribution package, etc.)
git clone
If you are building/installing from a git clone, please copy-n-paste the output from
git submodule status.Please describe the system on which you are running
Details of the problem
The control variable
coll_tuned_use_dynamic_rulesis scoped asMCA_BASE_VAR_SCOPE_READONLY. See coll_tuned_component.c:173. The read only scope prevents it from being set programmatically using the MPI_T interface. The scope should beMCA_BASE_VAR_SCOPE_ALLso that it could be set via the MPI_T interface. In particularcoll_tuned_use_dynamic_rulesmust be set to 1 in order to use the other tuning variables. In my case I would like to setcoll_tuned_alltoall_algorithmandcoll_tuned_alltoall_max_requestsprogrammatically since the latter cannot be set by the "dynamic rules file" method (more info in #12589).The text was updated successfully, but these errors were encountered: