Slightly off-topic: for lustre/Mellanox/MPI shops do your MPI apps (OpenMPI?) see tangible benefits of fca, hcoll, knem from the MLNX OFED on a mixture of FDR10 and FDR). These are the some reasons given for the MLNX OFED stack.
>I see all the questions and ask myself:
>Is the difference between OFED and the infiniband drivers in the CentOS repos tangible?
It depends. I found for most cases it is not worth the extra effort to use the OFED/Mellanox stack.
Now if you have FDR Mellanox cards then yes using the Mellanox/OFED 3.12 stack makes a difference.
We did have one cluster that was having problems with the RHEL infiniband stack and going to the
Mellanox stack helped in that case.
>We had the OFED problems and just switched to the CentOS drivers, since all the clients are running with the Debian/kernel.org drivers it didn't seem to make a big difference anyhow...
>
>>On Fri, Oct 3, 2014 at 9:40 AM, Indivar Nair <indivar.nair@techterra.in> wrote:
>>Hi ...,
>>I can see quite a few mails on Lustre and OFED.
>>>>Are there any known issues with CentOS6.5+Lustre 2.5.3+Mellanox OFED 2.3 combination?
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