SIGSEGV signal (forbidden memory area access) intercepted!

Call stack:
   1: 0x7f99bb3c5f86 <MPI_Comm_size+0x56>             (libmpi.so.0)
   2: 0x7f99bc2348e1 <_SCOTCHdgraphInit+0x71>         (libptscotch-5.1.so)
   3: 0x7f99bd4df6c9 <cs_partition+0x62b9>            (libsaturne.so.0)
   4: 0x7f99bd251f54 <cs_preprocessor_data_read_mesh+0x274> (libsaturne.so.0)
   5: 0x7f99bd1c3b88 <cs_run+0x238>                   (libsaturne.so.0)
   6: 0x7f99bd1c383a <main+0x14a>                     (libsaturne.so.0)
   7: 0x7f99ba52cead <__libc_start_main+0xfd>         (libc.so.6)
   8: 0x400829     <>                               (cs_solver)
End of stack

