On Wed, 27 Jan 2021 15:31:40 -0500
Michael Di Domenico via users wrote:
> if you have OPA cards, for openmpi you only need --with-ofi, you don't
> need psm/psm2/verbs/ucx.
I agree with Michael and would add for clarity that on the system you
always need PSM2 and optionally libfabric (if you go t
Tony,
Im not able to run it in parallel on OF7.
So i decide to use OF7 (with CfMesh) to mesh my case and then switch to
OF8 and calculate it :).
Thank you for your help and best regards
Kai
Am 10.01.21 um 16:49 schrieb Tony Ladd via users:
Kai
That means your case directory is mostly OK. E
Patrick,
A few more questions for you:
1. What version of IFS are you running?
2. Are you using CUDA cards by any chance? If so, what version of CUDA?
-Original Message-
From: Heinz, Michael William
Sent: Wednesday, January 27, 2021 3:45 PM
To: Open MPI Users
Subject: RE: [OMPI users]
Hello all,
What are the options for binding MPI tasks on a blocks of cores per
node/socket/numa in a round-robin fashion? Say I want to fully populate 40 core
sockets on dual-socket nodes but in a round-robin fashion binding 4 cores on
the first node, then 4 cores on the next, and so on. Woul
Trying to wrap my head around this, so let me try a 2-node example. You want
(each rank bound to a single core):
ranks 0-3 to be mapped onto node1
ranks 4-7 to be mapped onto node2
ranks 8-11 to be mapped onto node1
ranks 12-15 to be mapped onto node2
etc.etc.
Correct?
> On Jan 28, 2021, at 3:0
That's right Ralph!
On 28/01/2021 23:13, Ralph Castain via users wrote:
Trying to wrap my head around this, so let me try a 2-node example. You want
(each rank bound to a single core):
ranks 0-3 to be mapped onto node1
ranks 4-7 to be mapped onto node2
ranks 8-11 to be mapped onto node1
ranks
Hmmm...well, the proc distribution is easy as you would just --map-by node. The
tricky thing is assigning the ranks in the pattern you desire. We definitely
don't have that pattern in our ranking algo today, though it wouldn't be hard
to add.
However, that wouldn't be available until OMPI v5 wa
