Re: [OMPI users] CUDA-aware codes not using GPU

Hi, Arturo. Usually, for OpenMPI+UCX we use the following recipe for UCX: ./configure --prefix=/path/to/ucx-cuda-install --with-cuda=/usr/local/cuda --with-gdrcopy=/usr make -j install then OpenMPI: ./configure --with-cuda=/usr/local/cuda --with-ucx=/path/to/ucx-cuda-install make -j

Re: [OMPI users] CUDA GPU Direct RDMA support

These two links will likely be able to help you: http://www.mellanox.com/page/products_dyn?product_family=295=gpudirect https://github.com/Mellanox/nv_peer_memory On Fri, Dec 14, 2018 at 4:50 PM Weicheng Xue wrote: > Hi all, > > I am now having a GPU Direct issue. I loaded gcc/5.2.0, >

Re: [OMPI users] check for CUDA support

don't compile with CUDA support. > > That's kinda the point / it's probably obvious, but I thought I would > clarify, anyway. :-) > > > > On Oct 30, 2018, at 4:29 PM, Akshay Venkatesh > wrote: > > > > +1 to what Jeff said. > > > > So you would need --wi

Re: [OMPI users] check for CUDA support

tually an API call that will tell you if > your Open MPI has CUDA support: > > https://www.open-mpi.org/doc/v3.1/man3/MPIX_Query_cuda_support.3.php > > > > > > On Oct 30, 2018, at 3:14 PM, Akshay Venkatesh > wrote: > > > > The first one is the critical

Re: [OMPI users] check for CUDA support

ompi_info -a | grep "xtensions" returns > MPI extensions: affinity, cuda > > It seems the two outputs are in conflict, what does that mean? > > > On Tue, Oct 30, 2018 at 8:50 PM Akshay Venkatesh > wrote: > >> Andrei, >> >> I generally check with one

Re: [OMPI users] check for CUDA support

Andrei, I generally check with one of these two: $ ompi_info -a | grep "\-with\-cuda" Configure command line: '--prefix=$HOME/ompi/build-cuda' '--enable-mpirun-prefix-by-default' '--with-cuda=/usr/local/cuda' '--with-ucx=$HOME/ucx-github/build' '--with-ucx-libdir=$HOME/ucx-github/build/lib'

Re: [OMPI users] "Warning :: opal_list_remove_item" with openmpi-2.1.0rc4

Hi Siegmar, Would it possible for you to provide the source to reproduce the issue? Thanks On Tue, Mar 21, 2017 at 9:52 AM, Sylvain Jeaugey wrote: > Hi Siegmar, > > I think this "NVIDIA : ..." error message comes from the fact that you add > CUDA includes in the C*FLAGS.