[mvapich-discuss] How to make sure application is running on IB

[wei huang]

Hi,

You can just compile and run osu_latency.c in the osu_benchmarks directory
and see the latency you observed.

For Infiniband you should definitely observe <10us for 1 byte messages
(you probabaly will get far lower if your machines are with PCI-Ex NIC).
Otherwise something is wrong with the setup.

Thanks.

Regards,
Wei Huang

774 Dreese Lab, 2015 Neil Ave,
Dept. of Computer Science and Engineering
Ohio State University
OH 43210
Tel: (614)292-8501


On Tue, 13 Mar 2007, Aliva Pattnaik wrote:

> Hi,
>
> I am using mvapich2 which is compiled using the make.mvapich2.vapi
> script file where I am providing the path to ibgd library from mellanox
> . The cluster that I am using has infiniband network. But I am wondering
> how to make sure that my application is running over infiniband not tcp/ip?
>
> Thank you very much for your answer,
> Aliva
>
>
>
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