[mvapich-discuss] src/mpid/ch3/channels/mrail/src/gen2/ibv_cuda_util.c:784: cudaHostRegister Failed: No such file or directory

[sreeram potluri]

Hi Pierre,

Can you give us some more information about the system and the job
configuration you are using (number of GPUs per node, number of processes
per node, the test program and command used to run it).

Please share the outputs from "nvidia-smi -q" and "lspci -tv".

Regards
Sreeram Potluri


On Mon, Jan 27, 2014 at 9:49 AM, Pierre Wahl <pwahl at b-phot.org> wrote:

> Dear MVAPICH guys,
>
> After reconfiguring our machine I ran into the following problem in the
> cuda-aware version of MVAPICH.
>
> On the latest 1.9 I got the following error on  MPI_INIT
>
> src/mpid/ch3/channels/mrail/src/gen2/ibv_cuda_util.c:784: cudaHostRegister
> Failed: No such file or directory
>
> On 2.2.0b I only get the same error when using more the 1 cards.
>
> src/mpid/ch3/channels/mrail/src/gen2/ibv_cuda_util.c:784: cudaHostRegister
> Failed: No such file or directory
>
> I looked around and I could not find the cause of this problem. Many
> Thanks for help!
>
> Pierre
>
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>
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