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Dear QE community,
<div>I am struggling with the EPW MPI failure. </div>
<div>I have installed QE 7.1 with the following configuration:</div>
<div>./configure CC=pgcc F77=pgf77 FC=nvfortran F90=nvfortran --with-cuda="/usr/share/nvidia/hpc_sdk/Linux_x86_64/22</div>
<div>.3/cuda/11.6" --with-cuda-runtime=11.6 --enable-openmp --with-scalapack=no --with-cuda-cc=70</div>
<div>The configuration proceeds without error and follows by make all.</div>
<div>I generated all the executables except epw.x. I proceed with make epw to generate epw.x.</div>
<div>However, epw.x gives an error on the mpi failure that does not exist with other executables such as pw.x. </div>
<div>Here is the obtained error:</div>
<div>An error occurred in MPI_Init_thread </div>
<div>*** on a NULL communicator </div>
<div>*** MPI_ERRORS_ARE_FATAL (processes in this communicator will now abort, </div>
<div>*** and potentially your MPI job) </div>
<div>[c109067:189163] Local abort before MPI_INIT completed completed successfully, but am not able to aggregate error messages, and not able to guara</div>
<div>ntee that all other processes were killed! </div>
<div>[c109067:189160] [[INVALID],INVALID] ORTE_ERROR_LOG: A system-required executable either could not be found or was not executable by this user in</div>
<div> file ../../../../../orte/mca/ess/singleton/ess_singleton_module.c at line 388
</div>
<div>[c109067:189160] [[INVALID],INVALID] ORTE_ERROR_LOG: A system-required executable either could not be found or was not executable by this user in</div>
<div> file ../../../../../orte/mca/ess/singleton/ess_singleton_module.c at line 166</div>
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Regards</div>
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Albert<br>
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