> > Is your plan to use a single MPI process (that is the same as a > sequential program) and ONE GPU for the solver or do you wish to have MPI > parallelism for the linear solver where each MPI process uses a GPU for its > part?
For now, I want to serialize the matrices and vectors and offload them to 1 GPU from the root process. Then distribute the result later. Harshad On Sat, May 30, 2015 at 10:21 PM, Barry Smith <[email protected]> wrote: > > > On May 30, 2015, at 8:44 PM, Harshad Sahasrabudhe <[email protected]> > wrote: > > > > Hi, > > > > I need to offload the linear solves in a time stepper to GPUs. I'll be > using the MAGMA sparse iterative solvers. What is the simplest way to > achieve this? Is is better to write a new KSPType or is there a KSP wrapper > which I can use? > > We do not have any KSPType for the MAGMA sparse iterative solvers. > > Is your plan to use a single MPI process (that is the same as a > sequential program) and ONE GPU for the solver or do you wish to have MPI > parallelism for the linear solver where each MPI process uses a GPU for its > part? > > Barry > > > > > Many thanks, > > Harshad > >
