Send/Ssend/Isend buffering differences, and
relying solely on blocking communication.
Simon
Research Fellow
Santa Fe Institute
http://santafe.edu/~simon
On 25 Feb 2013, at 4:04 PM, Simon DeDeo wrote:
> I have been having some trouble tracing the source of a CPU stall with open
> MP
I have been having some trouble tracing the source of a CPU stall with open MPI
on Gentoo.
My code is very simple: each process does a Monte Carlo run, saves some data to
disk, and sends back a single MPI_DOUBLE to node zero, which picks the best
value from all the computations (including the o
