That might be an issue worth asking about over in the Spack Community [1].
Not sure if I'm interpreting the message correctly, but if I am, the
"@1.5.4:2" in the message from spack info I believe is indicating that
thread_multiple will be disabled unless OpenMPI version 1.5.4 [2] to 2
[3] is being used.
In the Spack source code of its current latest version 0.20.0 [4], the
openmpi/package.py file has on lines 662-668:
# thread_multiple
if version in spack.version.ver("1.5.4:2"):
match = re.search(r"MPI_THREAD_MULTIPLE: (\S+?),?", output)
if match and is_enabled(match.group(1)):
variants.append("+thread_multiple")
else:
variants.append("~thread_multiple")
Since you are using OpenMPI 4.1.5, I suspect line 663 might need changed
for example to "if version in spack.version.ver("1.5.4:4.1.5"):".
Perhaps there are other changes a Spark developer would know about that
might also be needed for the MPI_THREAD_MULTIPLE to work with Spack when
using OpenMPI 4.1.5.
[1] https://github.com/spack/spack/blob/develop/README.md#community
[2] https://www.open-mpi.org/software/ompi/v1.5/
[3] https://www.open-mpi.org/software/ompi/v2.0/
[4]
https://github.com/spack/spack/blob/v0.20.0/var/spack/repos/builtin/packages/openmpi/package.py
Gavin
WIEN2k user
On 7/4/2023 11:59 AM, Ilias, Miroslav wrote:
Hello,
sorry for hidden link;
the point is that the "|ompi_info -a | grep THREAD|" says
|MPI_THREAD_MULTIPLE: yes|,
but "spack info openmpi@4.1.5" gives "thread_multiple [off]
[@1.5.4:2] on, off Enable MPI_THREAD_MULTIPLE support"
Maybe this is the case of the ELPA "WARNING elpa_setup: MPI threading
level MPI_THREAD_SERALIZED or MPI_THREAD_MULTIPLE required but your
implementation does not support this! The number of OpenMP threads
within ELPA will be limited to 1"
I will investigate it deeper, as I need Wien2k parallel as fast as
possible.
Intel MPI will come later, again, I need ELPA built with Intel. I
guess that IntelMPI+MKL Wien2k is faster than OpenMPI+Openblas ?
Best, Miro
------------------------------------------------------------------------
*From:* Wien <wien-boun...@zeus.theochem.tuwien.ac.at> on behalf of
Laurence Marks <laurence.ma...@gmail.com>
*Sent:* 04 July 2023 18:02
*To:* A Mailing list for WIEN2k users
*Subject:* Re: [Wien] WARNING elpa_setup during lapw1_mpi
That is a private site, do I cannot read anything.
All I can suggest is doing a Google search on "missing
MPI_THREAD_MULTIPLE". It looks as if you have to enable this in
openmpi configure, although there might be some bugs. There could also
be some environmental parameters that need to be set.
Or use Intel mpi. While it does not have everything that some sysadmin
want, if you are using mkl & ifort (both free) it integrates
trivially. I personally dislike openmpi as it keeps changing and is
not always user friendly.
--
Professor Laurence Marks (Laurie)
Department of Materials Science and Engineering, Northwestern University
www.numis.northwestern.edu <http://www.numis.northwestern.edu>
"Research is to see what everybody else has seen, and to think what
nobody else has thought" Albert Szent-Györgyi
On Tue, Jul 4, 2023, 09:33 Ilias, Miroslav <m.il...@gsi.de> wrote:
Dear Professor Marks,
concerning
https://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg22621.html
:
I am trying to find out why is ELPA module complaining of missing
MPI_THREAD_MULTIPLE .
We have a debate on this
https://git.gsi.de/SDEGroup/SIR/-/issues/85#note_55392
If you somebody could comment on this topic as I would like to
investigate deeply. Can somebody advice me a short ELPA testing
program for this ?
Best, Miro
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at:http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html
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