NetPIPE can also test directly at the
> InfiniBand layer so you can see if anything is wrong there.
>
> http://netpipe.cs.ksu.edu/
>
> Dave Turner
>
>
>> Message: 1
>> Date: Thu, 22 Mar 2018 09:31:54 +0900
>> From: Gilles Gouaillardet
>>
Band layer so you can see if anything is wrong there.
http://netpipe.cs.ksu.edu/
Dave Turner
> Message: 1
> Date: Thu, 22 Mar 2018 09:31:54 +0900
> From: Gilles Gouaillardet
> To: users@lists.open-mpi.org
> Subject: Re: [OMPI users] OpenMPI slow with Infiniband
>
Supun,
did you configure Open MPI with --disable-dlopen ?
It was previously reported that this option disable the patcher (memory
registration),
which impacts performance negatively.
If yes, then I suggest you reconfigure (and rebuild) without this option
and see if it helps
Cheers,
Hi,
I'm trying to run a small benchmark with Infiniband and Ethernet to see the
difference. I get strange results where OpenMPI seems to be slower with
Infiniband than Ethernet. I'm using the 3.0.0 version.
Using the following parameters to enable Ethernet.
--mca btl ^openib --mca btl_tcp_if_inc
