Re: [Libmesh-devel] MPI-2 one sided operations

2013-09-30 Thread Jed Brown
"Kirk, Benjamin (JSC-EG311)" writes: > Jed, does the PETSc team have any experience with the NBC algorithm > deadlocking with OpenMPI-1.7? > > I know they don't officially advertise MPI_Ibarrier(), but it is there... I've had problems with other things in the past, but I don't recall this speci

Re: [Libmesh-devel] MPI-2 one sided operations

2013-09-30 Thread Kirk, Benjamin (JSC-EG311)
Jed, does the PETSc team have any experience with the NBC algorithm deadlocking with OpenMPI-1.7? I know they don't officially advertise MPI_Ibarrier(), but it is there... See https://github.com/benkirk/mpi_playground.git - I've implemented the nonblocking consensus & it seems to work reliably