From: Akshay Venkatesh
Sent: Friday, September 06, 2019 11:14 AM
To: Open MPI Users
Cc: Joshua Ladd ; Arturo Fernandez
Subject: 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-c
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 insta
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Did you build UCX with CUDA support (--with-cuda) ?
Josh
On Thu, Sep 5, 2019 at 8:45 PM AFernandez via users <
users@lists.open-mpi.org> wrote:
> Hello OpenMPI Team,
>
> I'm trying to use CUDA-aware OpenMPI but the system simply ignores the GPU
> and the code runs on the CPUs. I've tried differe