v5.0.x: docs: add some info about HPE CXI ofi provider #12163
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and also make a statement about the OFI BTL more accurate. Related to open-mpi#12038 Signed-off-by: Howard Pritchard <[email protected]> (cherry picked from commit 2718732)
jsquyres
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Dec 14, 2023
jsquyres
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rhc54
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Dec 14, 2023
| @@ -76,6 +78,11 @@ list. For example: | |||
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| shell$ ompi_info --param mtl ofi --level 9 | |||
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| .. important:: When using the HPE CXI provider and ``mpirun`` as the job launcher, | |||
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Just to be clear: this isn't entirely accurate. You could also simply add --map-by :nouselocal to the mpirun cmd line.
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yeah, if you want to get charged for N+1 vs N nodes where N is the number of nodes available for your MPI processes.
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I understand your point - however, your text doesn't indicate that you have a choice. You state that you must use the specified option - and that simply isn't true.
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That's a fair point. It's probably worth pointing out the subtlety here -- i.e., what does this parameter mean and do, vs. what the user's options are if they don't use this MCA param.
Signed-off-by: Howard Pritchard <[email protected]> (cherry picked from commit e583e48)
jsquyres
approved these changes
Dec 20, 2023
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and also make a statement about the OFI BTL more accurate.
Related to #12038
Signed-off-by: Howard Pritchard [email protected]
(cherry picked from commit 2718732)