Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Open MPI User's mailing list

Subject: [OMPI users] Question on shmem MCA parameter
From: Blosch, Edwin L (edwin.l.blosch_at_[hidden])
Date: 2012-11-07 13:09:25

I am using this parameter "shmem_mmap_relocate_backing_file" and noticed that the relocation variable is identified as "shmem_mmap_opal_shmem_mmap_backing_file_base_dir" in its documentation, but then the next parameter that appears from ompi_info is spelled differently, namely "shmem_mmap_backing_file_base_dir".

Is the first name just a typo?

> MCA shmem: parameter "shmem_mmap_relocate_backing_file"
> (current value:
> <0>, data source: default value)
> Whether to change the default placement of
> backing files or not
> (Negative = try to relocate backing files to
> an area rooted at
> the path specified by
> shmem_mmap_opal_shmem_mmap_backing_file_base_dir, but continue
> with the default path if the relocation
> fails, 0 = do not
> relocate, Positive = same as the negative
> option, but will fail
> if the relocation fails.
> MCA shmem: parameter "shmem_mmap_backing_file_base_dir"
> (current value:
> </dev/shm>, data source: default value)
> Specifies where backing files will be created when
> shmem_mmap_relocate_backing_file is in use.