[mvapich-discuss] [PATCH] Minor startup improvement

[Jonathan Perkins]

Maksym, thanks for the patch.  We've incorporated this internally and it is
going through QA.  This will be available in our next release.  Thanks
again!

On Thu, Oct 8, 2015 at 11:29 AM Maksym Planeta <
mplaneta at os.inf.tu-dresden.de> wrote:

> Hi,
>
> I found out that function umad_get_ca() is called several times inside
> MPI_Init. When the arguments to this function are the same, the result
> is also the same. So I cached the result of the last call. This allowed
> to speedup MPI_Init for 0.9 to 0.5 seconds on a cluster with 24 cores
> nodes each. I tested this with 32 to 256 ranks.
>
> The patch is in the attachment.
>
> --
> Regards,
> Maksym Planeta
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