Hello again, I should add that the openmpi configure decides to use the internal pmix
configure: WARNING: discovered external PMIx version is less than internal version 3.x configure: WARNING: using internal PMIx ... ... checking if user requested PMI support... yes checking for pmi.h in /usr/include... not found checking for pmi.h in /usr/include/slurm... found checking pmi.h usability... yes checking pmi.h presence... yes checking for pmi.h... yes checking for libpmi in /usr/lib64... found checking for PMI_Init in -lpmi... yes checking for pmi2.h in /usr/include... not found checking for pmi2.h in /usr/include/slurm... found checking pmi2.h usability... yes checking pmi2.h presence... yes checking for pmi2.h... yes checking for libpmi2 in /usr/lib64... found checking for PMI2_Init in -lpmi2... yes checking for pmix.h in ... not found checking for pmix.h in /include... not found checking can PMI support be built... yes checking if user requested internal PMIx support(yes)... no checking for pmix.h in /usr... not found checking for pmix.h in /usr/include... found checking libpmix.* in /usr/lib64... found checking PMIx version... version file found checking version 4x... found checking PMIx version to be used... internal I am not sure how it decides that, the external one is already a quite new version. # srun --mpi=list MPI plugin types are... pmix cray_shasta none pmi2 specific pmix plugin versions available: pmix_v4 Best Regards Christof -- Dr. rer. nat. Christof Köhler email: c.koeh...@uni-bremen.de Universitaet Bremen/FB1/BCCMS phone: +49-(0)421-218-62334 Am Fallturm 1/ TAB/ Raum 3.06 fax: +49-(0)421-218-62770 28359 Bremen