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
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 different software but will focus
on the OSU benchmarks (collective and pt2pt communications). Let me provide
some data about the configuration of the system:
-
