Re: [OMPI users] MPI_WAIT hangs after a call to MPI_CANCEL

2017-04-07 Thread McGrattan, Kevin B. Dr. (Fed)
MPI Users mailto:users@lists.open-mpi.org>> Subject: Re: [OMPI users] MPI_WAIT hangs after a call to MPI_CANCEL On Mon, Apr 3, 2017 at 4:47 PM, McGrattan, Kevin B. Dr. (Fed) mailto:kevin.mcgrat...@nist.gov>> wrote: Thanks, George. Are persistent send/receives matched from the start of

Re: [OMPI users] MPI_WAIT hangs after a call to MPI_CANCEL

2017-04-06 Thread George Bosilca
PI library, including > pending sends and receives. This will also print additional information > (the status of the requests, the tag, the size, and so on) that can be > understood by the developers. If you post the info here, we might be able > to provide additional information on the

Re: [OMPI users] MPI_WAIT hangs after a call to MPI_CANCEL

2017-04-05 Thread McGrattan, Kevin B. Dr. (Fed)
rg>> Cc: McGrattan, Kevin B. Dr. (Fed) mailto:kevin.mcgrat...@nist.gov>> Subject: Re: [OMPI users] MPI_WAIT hangs after a call to MPI_CANCEL Kevin, In Open MPI we only support cancelling non-yet matched receives. So, you cannot cancel sends nor receive requests that have already been

Re: [OMPI users] MPI_WAIT hangs after a call to MPI_CANCEL

2017-04-03 Thread George Bosilca
nt:* Monday, April 03, 2017 2:29 PM > *To:* Open MPI Users > *Cc:* McGrattan, Kevin B. Dr. (Fed) > *Subject:* Re: [OMPI users] MPI_WAIT hangs after a call to MPI_CANCEL > > > > Kevin, > > > > In Open MPI we only support cancelling non-yet matched receives. So, you &g

Re: [OMPI users] MPI_WAIT hangs after a call to MPI_CANCEL

2017-04-03 Thread McGrattan, Kevin B. Dr. (Fed)
Users Cc: McGrattan, Kevin B. Dr. (Fed) Subject: Re: [OMPI users] MPI_WAIT hangs after a call to MPI_CANCEL Kevin, In Open MPI we only support cancelling non-yet matched receives. So, you cannot cancel sends nor receive requests that have already been matched. While the latter are supposed to

Re: [OMPI users] MPI_WAIT hangs after a call to MPI_CANCEL

2017-04-03 Thread George Bosilca
Kevin, In Open MPI we only support cancelling non-yet matched receives. So, you cannot cancel sends nor receive requests that have already been matched. While the latter are supposed to complete (otherwise they would not have been matched), the former are trickier to complete if the corresponding

[OMPI users] MPI_WAIT hangs after a call to MPI_CANCEL

2017-04-01 Thread McGrattan, Kevin B. Dr. (Fed)
I am running a large computational fluid dynamics code on a linux cluster (Centos 6.8, Open MPI 1.8.4). The code is written in Fortran and compiled with Intel Fortran 16.0.3. The cluster has 36 nodes, each node has two sockets, each socket has six cores. I have noticed that the code hangs when t