How to specify GPU devices for parallel computing using "parfor"?
6 views (last 30 days)
I have a workstation with four GPUs, and I want to run a parfor loop using specific two or three GPUs to share the workstation with other users. If you know how to specify gpu devices for parallel computing using "parfor", I would appreciate it if you could let me know.
Edric Ellis on 20 Dec 2021
The documentation here describes how you might do this in general. Things get a little more complicated if you want to run more workers than the number of GPUs you're accessing, but the principle is the same - set things up using gpuDevice inside an spmd block. That then sets the GPU in use by the worker process, and parfor loops will continue to use that device.