On Fri, Nov 12, 2010 at 9:52 AM, Barry Smith <bsmith at mcs.anl.gov> wrote:
> > What should we use a for programming model for PETSc on multi-core > systems? Currently for conventional multicore we have only have one MPI > process per core and for GPU we have subclasses of Vec and Mat with custom > CUDA code. > > Should we introduce subclasses of Vec and Mat built on pthreads (this is > what Bill G recommends, and not to use OpenMP)? > pthreads are a nightmare and do not do vectorization right, which is necessary here. I am for OpenCL/CUDA. Eventually I think OpenCL will take its head out of its ass and be as nice as CUDA. Matt > Is there a way to have some kind of consistent model between conventional > multicore and GPU multi-core? If not the same code. What about this MCUDA > stuff? > > Barry > -- 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-dev/attachments/20101112/c29c7226/attachment.html>