subject:"\[petsc\-dev\] thread communicator"

Re: [petsc-dev] thread communicator

2016-01-12 Thread Falgout, Rob

. -Rob From: Jeff Hammond [mailto:jeff.scie...@gmail.com] Sent: Tuesday, January 12, 2016 12:36 PM To: Barry Smith Cc: Falgout, Rob; Yang, Ulrike Meier; PETSc Subject: Re: [petsc-dev] thread communicator Rob: You might be interested in the MPI-4 endpoints proposal. It should allow MPI

Re: [petsc-dev] thread communicator

2016-01-12 Thread Jeff Hammond

Rob: You might be interested in the MPI-4 endpoints proposal. It should allow MPI communicators to act as thread communicators. Jeff On Tue, Jan 12, 2016 at 12:33 PM, Barry Smith wrote: > > Rob, > > I guess you missed the last FASTMath meeting. We have stopped all

Re: [petsc-dev] thread communicator

2016-01-12 Thread Barry Smith

Rob, I guess you missed the last FASTMath meeting. We have stopped all work on using threads a long time ago because we never saw an improvement in performance and it was a pain to maintain. We even ripped the thread code out of PETSc so currently we are back to being an all "MPI"