Sorry the pictures where not inserted correctly.... 1) Error at my self written MPI program: [cid:[email protected]] 2) Error at the Intel MPI Benchmark: [cid:[email protected]] Greetings, Philip Von: [email protected] [mailto:[email protected]] Im Auftrag von Klaus Philip Gesendet: Dienstag, 8. Juli 2014 11:26 An: [email protected] Betreff: [mpich-discuss] Problem with "sock"-channel After reconfiguring, recompiling and reinstalling mpich2 with the sock-channel flag (--with-device=ch3:sock) to avoid active polling, every MPI program (Self written programs, and also the Intel MPI Benchmark too) breaks when it calls a MPI function: 1) Error at my self written MPI program: 2) Error at the Intel MPI Benchmark: So I hope someone of you knows what issue is causing these errors. Greetings from Austria, Philip