On Fri, Oct 2, 2020 at 3:02 PM Junchao Zhang <[email protected]> wrote:
> > > On Fri, Oct 2, 2020 at 2:59 PM Mark Adams <[email protected]> wrote: > >> >> >> On Fri, Oct 2, 2020 at 3:15 PM Barry Smith <[email protected]> wrote: >> >>> >>> Mark, >>> >>> Looks like you are building Kokkos without CUDA. >> >> >> Yes. This is a CPU build of Kokkos. >> >> >>> You don't have --with-cuda on configure line that is used by Kokkos to >>> determine what version to build. >>> >>> Junchao, >>> >>> I guess you need to test Kokkos Kernels without CUDA and HIP and make >>> a few changes. >>> >> >> I'm trying with OpenMP right now. If you want CPU runs then asking for >> OMP is not terrible. >> >> > That is an interesting feature of Kokkos. > By the design, even 'device' memory is now the host memory. The computation is still diverted to Kokkos backend. In other words, petsc supports multithreading through Kokkos. > > >> >>> Barry >>> >>> >>> >>> >>> #if defined(PETSC_HAVE_CUDA) >>> #define WaitForKokkos() PetscCUDASynchronize ? (Kokkos::fence(),0) : 0; >>> #elif defined(PETSC_HAVE_HIP) >>> #define WaitForKokkos() PetscHIPSynchronize ? (Kokkos::fence(),0) : 0; >>> #endif >>> >>> >>> >>> > On Oct 2, 2020, at 11:47 AM, Mark Adams <[email protected]> wrote: >>> > >>> > >>> > <configure.log><make.log> >>> >>>
