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<mailto: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 _______________________________________________ Wien mailing list Wien@zeus.theochem.tuwien.ac.at<mailto:Wien@zeus.theochem.tuwien.ac.at> http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien SEARCH the MAILING-LIST at: http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html
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