>-Original Message-
>From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Maxime
>Boissonneault
>Sent: Tuesday, May 27, 2014 4:07 PM
>To: Open MPI Users
>Subject: Re: [OMPI users] Advices for parameter tuning for CUDA-aware MPI
>
>Answers inline to
Answers inline too.
2) Is the absence of btl_openib_have_driver_gdr an indicator of something
missing ?
Yes, that means that somehow the GPU Direct RDMA is not installed correctly.
All that check does is make sure that the file
/sys/kernel/mm/memory_peers/nv_mem/version exists. Does that
Answers inline...
>-Original Message-
>From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Maxime
>Boissonneault
>Sent: Friday, May 23, 2014 4:31 PM
>To: Open MPI Users
>Subject: [OMPI users] Advices for parameter tuning for CUDA-aware MPI
>
>Hi,
>I am
Hi,
I am currently configuring a GPU cluster. The cluster has 8 K20 GPUs per
node on two sockets, 4 PCIe bus (2 K20 per bus, 4 K20 per socket), with
a single QDR InfiniBand card on each node. We have the latest NVidia
drivers and Cuda 6.0.
I am wondering if someone could tell me if all the
