[mvapich-discuss] thread safety

[Scott Brozell]

Hi,

Which versions of mvapich are thread safe ?

http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.4rc2.html
"1.4 provides support and optimizations for other MPI-2 features, multi-threading"
Does that mean thread safe ?

MPICH2 supports thread safety:
www.mcs.anl.gov/~thakur/papers/mpi-threads.pdf
"In the next release, 1.0.4, the default build of the ch3:sock channel will support thread safety,
but thread safety will be enabled only if the user calls MPI Init thread with
MPI THREAD MULTIPLE."
Does mvapich use the same thread safety mechanism ?

thanks,
Scott

Scott Brozell, Ph.D.
Senior Systems Developer/Engineer
Science and Technology Support
Ohio Supercomputer Center