Hi,
one way to test is to run a sequential example through nv-prof:
$> nvprof ./ex56 ...
https://devblogs.nvidia.com/cuda-pro-tip-nvprof-your-handy-universal-gpu-profiler/
If it uses the GPU, then you will get some information on the GPU
kernels called. If it doesn't use the GPU, the list will be (almost) empty.
Best regards,
Karli
On 8/15/19 5:47 PM, Mark Adams via petsc-dev wrote:
I have configured with Hypre on SUMMIT, with cuda, and it ran. I'm now
trying to verify that it used GPUs (I doubt it). Any ideas on how to
verify this? Should I use the cuda vecs and mats, or does Hypre not
care. Can I tell hypre not to use GPUs other than configuring an
non-cude PETSc? I'm not sure how to run a job without GPUs, but I will
look into it.
Mark
