could mpiexec works on a gpu?

[huangyehui]

I run the cmd 'mpiexec -n 16 python scripts/image_train.py XXXXXX' while only has one gpu. and got some error. have anybody tried it with one gpu?

[forever208]

@huangyehui using mpiexec -n 1 to run image_train.py if you only has one GPU

[huangyehui]

thanks a lot!