'generate_global_map' limited by INT32_MAX #1
Description
The current limitation is given by the 'n_global_map' in 'generate_global_map'; this value must not exceed the int32 representation (otherwise displ vector in 'MPI_Allgatherv' induces errors).
Commit 9deed10 moved max global map len from MAX_THR to the memory given with '-M', however, this value must not induce a 'n_global_map' which exceeds 'INT32_MAX'. Using '-M 5000' is a safe choice.