Re: [OMPI users] communicator with MPI_Reduce

2016-10-21 Thread Gilles Gouaillardet
Rick, if you are using an inter communicator, please refer to the man page (a group has to use MPI_ROOT as the root argument) Cheers, Gilles On 10/21/2016 3:36 PM, George Bosilca wrote: Rick, There are few requirements to use any communicator in a collective operation (including MPI_R

Re: [OMPI users] Help - Client / server - app hangs in connect/accept by the second or next client that wants to connect to server

2016-10-21 Thread Gilles Gouaillardet
Matus, This has very likely been fixed by https://github.com/open-mpi/ompi/pull/2259 Can you download the patch at https://github.com/open-mpi/ompi/pull/2259.patch and apply it manually on v1.10 ? Cheers, Gilles On Monday, August 29, 2016, M. D. wrote: > > Hi, > > I would like to ask - are