Re: [OMPI users] "-map-by socket:PE=1" doesn't do what I expect

2017-02-17 Thread Mark Dixon
On Fri, 17 Feb 2017, r...@open-mpi.org wrote: Mark - this is now available in master. Will look at what might be required to bring it to 2.0 Thanks Ralph, To be honest, since you've given me an alternative, there's no rush from my point of view. The logic's embedded in a script and it's

Re: [OMPI users] "-map-by socket:PE=1" doesn't do what I expect

2017-02-17 Thread r...@open-mpi.org
Mark - this is now available in master. Will look at what might be required to bring it to 2.0 > On Feb 15, 2017, at 5:49 AM, r...@open-mpi.org wrote: > > >> On Feb 15, 2017, at 5:45 AM, Mark Dixon wrote: >> >> On Wed, 15 Feb 2017, r...@open-mpi.org wrote: >> >>> Ah,

Re: [OMPI users] "-map-by socket:PE=1" doesn't do what I expect

2017-02-15 Thread r...@open-mpi.org
> On Feb 15, 2017, at 5:45 AM, Mark Dixon wrote: > > On Wed, 15 Feb 2017, r...@open-mpi.org wrote: > >> Ah, yes - I know what the problem is. We weren’t expecting a PE value of 1 - >> the logic is looking expressly for values > 1 as we hadn’t anticipated this >>

Re: [OMPI users] "-map-by socket:PE=1" doesn't do what I expect

2017-02-15 Thread Mark Dixon
On Wed, 15 Feb 2017, r...@open-mpi.org wrote: Ah, yes - I know what the problem is. We weren’t expecting a PE value of 1 - the logic is looking expressly for values > 1 as we hadn’t anticipated this use-case. Is it a sensible use-case, or am I crazy? I can make that change. I’m off to a

Re: [OMPI users] "-map-by socket:PE=1" doesn't do what I expect

2017-02-15 Thread r...@open-mpi.org
Ah, yes - I know what the problem is. We weren’t expecting a PE value of 1 - the logic is looking expressly for values > 1 as we hadn’t anticipated this use-case. I can make that change. I’m off to a workshop for the next day or so, but can probably do this on the plane. > On Feb 15, 2017,

Re: [OMPI users] "-map-by socket:PE=1" doesn't do what I expect

2017-02-15 Thread r...@open-mpi.org
Ah, yes - I know what the problem is. We weren’t expecting a PE value of 1 - the logic is looking expressly for values > 1 as we hadn’t anticipated this use-case. I can make that change. I’m off to a workshop for the next day or so, but can probably do this on the plane. > On Feb 15, 2017,

[OMPI users] "-map-by socket:PE=1" doesn't do what I expect

2017-02-15 Thread Mark Dixon
Hi, When combining OpenMPI 2.0.2 with OpenMP, I'm interested in launching a number of ranks and allocating a number of cores to each rank. Using "-map-by socket:PE=", switching to "-map-by node:PE=" if I want to allocate more than a single socket to a rank, seems to do what I want. Except