Re: [OMPI users] Bug in MPI_REDUCE in CUDA-aware MPI

2013-12-02 Thread Rolf vandeVaart
=running#mpi-cuda-support Regards, Rolf >-Original Message- >From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Peter Zaspel >Sent: Monday, December 02, 2013 8:29 AM >To: Open MPI Users >Subject: Re: [OMPI users] Bug in MPI_REDUCE in CUDA-aware MPI > >* PGP Sig

Re: [OMPI users] Bug in MPI_REDUCE in CUDA-aware MPI

2013-12-02 Thread Peter Zaspel
ld be interested in? > > Rolf > >> -Original Message- >> From: users [mailto:users-boun...@open-mpi.org] On Behalf Of Peter Zaspel >> Sent: Friday, November 29, 2013 11:24 AM >> To: us...@open-mpi.org >> Subject: [OMPI users] Bug in MPI_REDUCE in CUDA-a

Re: [OMPI users] Bug in MPI_REDUCE in CUDA-aware MPI

2013-12-02 Thread Rolf vandeVaart
vember 29, 2013 11:24 AM >To: us...@open-mpi.org >Subject: [OMPI users] Bug in MPI_REDUCE in CUDA-aware MPI > >Hi users list, > >I would like to report a bug in the CUDA-aware OpenMPI 1.7.3 >implementation. I'm using CUDA 5.0 and Ubuntu 12.04. > >Attached, you will fi

[OMPI users] Bug in MPI_REDUCE in CUDA-aware MPI

2013-11-29 Thread Peter Zaspel
Hi users list, I would like to report a bug in the CUDA-aware OpenMPI 1.7.3 implementation. I'm using CUDA 5.0 and Ubuntu 12.04. Attached, you will find an example code file, to reproduce the bug. The point is that MPI_Reduce with normal CPU memory fully works but the use of GPU memory leads to a