On Wed, Sep 12, 2018 at 5:13 PM Manuel Valera <[email protected]> wrote:
> Hello guys, > > I am working in a multi-gpu cluster and i want to request 2 or more GPUs, > how can i do that from PETSc? evidently mpirun -n # is for requesting > processors, but what if i want to use one mpi processor but several GPUs > instead? > We do not do that. You would run the same number of MPI processes as GPUs. Note that you can have more than 1 MPI process on a processor. Matt > Also, i understand the GPU handles the linear system solver, but what > about the data management? can i do DMs for other than the linear solver > using the GPUs > ? > > Thanks once more, > > > -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
