Hi all, We are experiencing frequent exceptions from MPI_Probe recently. Does anybody know what cause might be for this exception and what I can do to track down the cause? MPI_Probe(113).......................: MPI_Probe(src=MPI_ANY_SOURCE, tag=MPI_ANY_TAG, comm=0x84000002, status=000000033FA217C8) failed MPIDI_CH3I_Progress(402).............: MPID_nem_mpich2_blocking_recv(905)...: MPID_nem_newtcp_module_poll(37)......: MPID_nem_newtcp_module_connpoll(2656): gen_read_fail_handler(1145)..........: read from socket failed - The specified network name is no longer available. Our cluster has MPICH2 1.4.1p1 and Windows Server 2008 R2 installed on 22 slave nodes and 1 master node. Thanks, Feng _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss