GPU for Acusim

Altair Forum User

Hi Team,

 

How to run a acusim job using GPU ?

Thanks in advance.

 

-Rajesh

cfdguru

Rajesh,

 

    Should be as easy as the following:

 

1.)  Make sure your GPU is set to 'exclusive mode' by using the following command:  nvidia-smi -i 0 -c 1

     Note that this assumes the compute GPU is device 0

 

2.)  Then run AcuSolve using the -gpu option:  acuRun -nt 4 -np 4 -gpu

 

Note that we have seen the best success when using 1 multi-threaded MPI task per GPU.