On 10/14/10 07:37, Jeff Squyres wrote:
On Oct 13, 2010, at 4:52 PM, Michael E. Thomadakis wrote:
Does MPI_Wtime of OMPI 1.4.3/1.5.0 rely on high resolution clocks (for Linux)
or does still rely on gettimeofday() ? How would one request at OMPI built time
to let it use high resolution
On Oct 13, 2010, at 4:52 PM, Michael E. Thomadakis wrote:
> Does MPI_Wtime of OMPI 1.4.3/1.5.0 rely on high resolution clocks (for
> Linux) or does still rely on gettimeofday() ? How would one request at OMPI
> built time to let it use high resolution clocks?
Check the man page for
Ed Peddycoart wrote:
I need to do some performance tests on my mpi app. I simply want
to determine how long it takes for my sends from one process to be
received by another process.
Here is the code I used as my example for non-blocking send/receive...
if( myrank == 0 ) {
I need to do some performance tests on my mpi app. I simply want to determine
how long it takes for my sends from one process to be received by another
process.
Here is the code I used as my example for non-blocking send/receive...
if( myrank == 0 ) {
/* Post a receive, send a message,
