Re: [OMPI devel] mtl/psm2 and $PSM2_DEVICES

2016-10-03 Thread Cabral, Matias A
Of Gilles Gouaillardet Sent: Thursday, September 29, 2016 7:45 PM To: Open MPI Developers Subject: Re: [OMPI devel] mtl/psm2 and $PSM2_DEVICES Ralph, what i had in mind is ignore dynamically spawned orted for the time being, and only consider the number of orted spawned by mpirun at MPI_Init

Re: [OMPI devel] mtl/psm2 and $PSM2_DEVICES

2016-09-29 Thread Gilles Gouaillardet
Ralph, what i had in mind is ignore dynamically spawned orted for the time being, and only consider the number of orted spawned by mpirun at MPI_Init() time. the rationale is that "in the real world", mpirun is invoked via a batch manager (that does not resize jobs) , and/or with a machinefile or

Re: [OMPI devel] mtl/psm2 and $PSM2_DEVICES

2016-09-29 Thread Gilles Gouaillardet
today. Moreover, I would like to know > if there is a place in some OMPI wiki to document this behavior. > > > > Thanks, > > > > _MAC > > > > From: devel [mailto:devel-boun...@lists.open-mpi.org] On Behalf Of Gilles > Gouaillardet > Sent: Thursday, September

Re: [OMPI devel] mtl/psm2 and $PSM2_DEVICES

2016-09-29 Thread r...@open-mpi.org
No simple solution, I fear. I know Matias et al are looking at the dynamic situation. Getting the number of orted, especially if/when they can be dynamically spawned, requires use of the notification method - in the plans, but not yet implemented. > On Sep 29, 2016, at 6:13 PM, Gilles Gouailla

Re: [OMPI devel] mtl/psm2 and $PSM2_DEVICES

2016-09-29 Thread Cabral, Matias A
this behavior. Thanks, _MAC From: devel [mailto:devel-boun...@lists.open-mpi.org] On Behalf Of Gilles Gouaillardet Sent: Thursday, September 29, 2016 6:14 PM To: Open MPI Developers Subject: [OMPI devel] mtl/psm2 and $PSM2_DEVICES This is a follow-up of https://mail-archive.com/users

[OMPI devel] mtl/psm2 and $PSM2_DEVICES

2016-09-29 Thread Gilles Gouaillardet
This is a follow-up of https://mail-archive.com/users@lists.open-mpi.org/msg30055.html Thanks Matias for the lengthy explanation. currently, PSM2_DEVICES is overwritten, so i do not think setting it before invoking mpirun will help also, in this specific case - the user is running within