NCSHMEM = [integer]
Default: NCSHMEM = 1
Description: NCSHMEM determines the number of compute cores sharing the memory in MPI in the non-cubic scaling GW routines.
By default no shared memory MPI is in the non-cubic scaling GW routines (ALGO=EVGW, EVGW0, QPGW and QPGW0). For using shared memory MPI in the non-cubic scaling GW set NCSHMEM=-1.
|Warning: For the openmp version NCHSMEM is not active and shared memory is not used for MPI. In that case the memory is shared between threads.