RE: [Beowulf] MPI Persistent Comm Question

2010-06-28 Thread Mark Hahn
Uhmmm, what is "MPI_Free()"? he probably meant MPI_Request_free (1) Call this subroutines 1000 times = call MPI_RECV_Init() call MPI_Send_Init() call MPI_Startall() call MPI_Free() = (2) Ca

RE: [Beowulf] MPI Persistent Comm Question

2010-06-28 Thread Bill Rankin
s it do? -bill From: beowulf-boun...@beowulf.org [mailto:beowulf-boun...@beowulf.org] On Behalf Of amjad ali Sent: Saturday, June 26, 2010 4:12 PM To: Beowulf Mailing List Subject: [Beowulf] MPI Persistent Comm Question Hi all, What is the be the best way of using MPI persistent communication i

[Beowulf] MPI Persistent Comm Question

2010-06-26 Thread amjad ali
Hi all, What is the be the best way of using MPI persistent communication in an iterative/repetative kind of code about calling MPI_Free(); Should we call MPI_Free() in every iteration or only once when all the iterations/repetitions are performed? Means which one is the best out of following two: