>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?