How to run PyFR on CPU/multicores only [ Without CUDA/OPENCL]

General
1

Hi everyone,

I installed PyFR successfully for bench-marking purpose. First I installed it with all its dependencies including CUDA and OPENCL.
When I run it , it was started executing on CPU + GPU , and it ran successfully.
But now I want to run it on CPU only, so I installed it on a multi-cores machine which is not having any GPU card, without OPENCL and CUDA dependencies.

When I am trying to run it, with " mpirun -n 4 pyfr run couette_flow_2d.pyfrm couette_flow_2d.ini" command
it gives following error :

ImportError: No module named ‘pycuda’

So I want to know , how to run it on multi-cores with MPI.

Regards,
Roshan

2

Hi Roshan,

As per the documentation to run PyFR on a CPU using the OpenMP backend
you need to pass -b openmp to $ pyfr. Otherwise, PyFR will run using
the CUDA backend on an NVIDIA GPU.

Regards, Freddie.

3

Thank you Freddie,
It worked, thanks for your suggestion.
I am trying to benchmark PyFR , please suggest some datatsets or provide me the link for that, so I can take benchmark of PyFR.
waiting for your reply.

Regards,
Roshan

4

Hi Roshan,

Suitable sample data sets and configuration files can be found in the
following series of posts on the mailing list:

example datasets

(Look for the post by Jin Seok.)

5

Thank you Freddie !!! once again …

Regards,
Roshan