You might take a look at the other profiling tools: http://www.open-mpi.org/faq/?category=perftools#OMPI-support
On Nov 5, 2012, at 1:07 AM, huydanlin <huydan...@gmail.com> wrote: > Hi, > My objective is I want to calculate the time perform by MPI_Send & > MPI_Recv . In case MPI_Send, i can put the timer before the MPI_Send and > after its. like this " > t1=MPI_Wtime(), > MPI_Send.... > t2= MPI_Wtime > tsend= t2 -t1; it mean when the message go to the system buffer, the control > return to the sending process. So I can measure the MPI_Send. > But my problem in MPI_Recv. If i do like MPI_Send( put the timer before > and after MPI_Recv) I think it wrong. Because we dont know exactly when the > message reach the system buffer in receiving side. > So how can we measure the MPI_Recv operation time( time when the message > is copied from the system buffer to the receive buffer) ? > > Thanks > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
