Dear Developers,<div>I'm writing to ask you help for setting CP2K on a HPC server.</div><div>Our IT compiled the code using gcc-8.3.0, openmpi 4.1.0 and the toolchain:</div><div></div><div><br></div><div>cmake-3.18.5
cosma-2.2.0
elpa-2020.05.001
fftw-3.3.8
gsl-2.6
hdf5-1.12.0
libint-v2.6.0-cp2k-lmax-5
libvdwxc-0.4.0
libvori-201229
libxc-4.3.4
libxsmm-1.16.1
openblas-0.3.10
scalapack-2.1.0
sirius-7.0.0
SpFFT-0.9.13
spglib-1.16.0 <br></div><div><br></div><div>The obtained code works fine on a single node of our server. When we launch it with the command:</div><div>mpiexec --prefix ${MPI_INST_DIR} -x PATH -x LD_LIBRARY_PATH -n $CORES -machinefile machine_file ${INST_DIR}/cp2k-8.1/exe/local/cp2k.${SOLVER} -inp ${INPUT} 2>&1 <br></div><div><br></div><div>on more than one node we get the error:</div><div><br></div><div>[btl_openib_component.c:1699:init_one_device] error obtaining device attributes for mlx5_0 errno says Protocol not supported <br></div><div><br></div><div>Could you please give us some advice?</div><div><br></div><div>Thanks a lot in advance and best regards,</div><div><br></div><div>Mauro Sgroi.</div><div>Centro Ricerche FIAT.</div><div>Italy.</div><div><br></div>