a
very friendly way to handle that error.
-Original Message-
From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Maxime
Boissonneault
Sent: Tuesday, August 19, 2014 10:39 AM
To: Open MPI Users
Subject: Re: [OMPI users] Segfault with MPI + Cuda on multiple nodes
Hi,
I believe I found
Open MPI Users
>Subject: Re: [OMPI users] Segfault with MPI + Cuda on multiple nodes
>
>Hi,
>I believe I found what the problem was. My script set the
>CUDA_VISIBLE_DEVICES based on the content of $PBS_GPUFILE. Since the
>GPUs were listed twice in the $PBS_GPUFILE because of the two n
-Original Message-
From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Maxime
Boissonneault
Sent: Tuesday, August 19, 2014 8:55 AM
To: Open MPI Users
Subject: Re: [OMPI users] Segfault with MPI + Cuda on multiple nodes
Hi,
I recompiled OMPI 1.8.1 without Cuda and with debug, but it did
2014 8:55 AM
>To: Open MPI Users
>Subject: Re: [OMPI users] Segfault with MPI + Cuda on multiple nodes
>
>Hi,
>I recompiled OMPI 1.8.1 without Cuda and with debug, but it did not give me
>much more information.
>[mboisson@gpu-k20-07 simple_cuda_mpi]$ ompi_info | grep debug
>
: Monday, August 18, 2014 4:23 PM
To: Open MPI Users
Subject: [OMPI users] Segfault with MPI + Cuda on multiple nodes
Hi,
Since my previous thread (Segmentation fault in OpenMPI 1.8.1) kindda
derailed into two problems, one of which has been addressed, I figured I
would start a new, more precise
: [OMPI users] Segfault with MPI + Cuda on multiple nodes
Same thing :
[mboisson@gpu-k20-07 simple_cuda_mpi]$ export MALLOC_CHECK_=1
[mboisson@gpu-k20-07 simple_cuda_mpi]$ mpiexec -np 2 --map-by ppr:1:node
cudampi_simple
malloc: using debugging hooks
malloc: using debugging hooks
[gpu-k20-07:47628
MPI Users
Subject: [OMPI users] Segfault with MPI + Cuda on multiple nodes
Hi,
Since my previous thread (Segmentation fault in OpenMPI 1.8.1) kindda
derailed into two problems, one of which has been addressed, I figured I
would start a new, more precise and simple one.
I reduced the code
Users
Subject: [OMPI users] Segfault with MPI + Cuda on multiple nodes
Hi,
Since my previous thread (Segmentation fault in OpenMPI 1.8.1) kindda
derailed into two problems, one of which has been addressed, I figured I
would start a new, more precise and simple one.
I reduced the code
?
-Original Message-
From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Maxime
Boissonneault
Sent: Monday, August 18, 2014 4:23 PM
To: Open MPI Users
Subject: [OMPI users] Segfault with MPI + Cuda on multiple nodes
Hi,
Since my previous thread (Segmentation fault in OpenMPI 1.8.1
users] Segfault with MPI + Cuda on multiple nodes
Hi,
Since my previous thread (Segmentation fault in OpenMPI 1.8.1) kindda
derailed into two problems, one of which has been addressed, I figured I
would start a new, more precise and simple one.
I reduced the code to the minimal that would reproduce
Try the following:
export MALLOC_CHECK_=1
and then run it again
Kind regards,
Alex Granovsky
-Original Message-
From: Maxime Boissonneault
Sent: Tuesday, August 19, 2014 12:23 AM
To: Open MPI Users
Subject: [OMPI users] Segfault with MPI + Cuda on multiple nodes
Hi,
Since my
Maxime
>Boissonneault
>Sent: Monday, August 18, 2014 4:23 PM
>To: Open MPI Users
>Subject: [OMPI users] Segfault with MPI + Cuda on multiple nodes
>
>Hi,
>Since my previous thread (Segmentation fault in OpenMPI 1.8.1) kindda
>derailed into two problems, one of which has been addre
Hi,
Since my previous thread (Segmentation fault in OpenMPI 1.8.1) kindda
derailed into two problems, one of which has been addressed, I figured I
would start a new, more precise and simple one.
I reduced the code to the minimal that would reproduce the bug. I have
pasted it here :
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