Hi, if I start different programs on one command line, I can use different options "-host" and "-np".
mpiexec -report-bindings -host linpc0 -np 1 date : \ -host sunpc0,sunpc1 -np 2 hostname Fri Oct 5 07:37:25 CEST 2012 sunpc0 sunpc1 Only the last value counts if I use for example "-cpus-per-proc". mpiexec -report-bindings -host linpc0 -np 1 -cpus-per-proc 2 \ -bind-to-core date : -host sunpc0,sunpc1 -np 2 -cpus-per-proc 1 \ -bind-to-socket hostname [linpc0:16121] MCW rank 0 bound to socket 0[core 0]: [B .][. .] Fri Oct 5 07:37:42 CEST 2012 [sunpc0:17789] MCW rank 1 bound to socket 0[core 0]: [B .][. .] sunpc0 [sunpc1:15007] MCW rank 2 bound to socket 0[core 0]: [B .][. .] sunpc1 mpiexec -report-bindings -host linpc0 -np 1 -cpus-per-proc 2 \ -bind-to-core date : -host sunpc0,sunpc1 -np 2 -bind-to-socket \ hostname [linpc0:16191] MCW rank 0 bound to socket 0[core 0-1]: [B B][. .] [sunpc0:17824] MCW rank 1 bound to socket 0[core 0-1]: [B B][. .] Fri Oct 5 07:37:56 CEST 2012 sunpc0 [sunpc1:15040] MCW rank 2 bound to socket 0[core 0-1]: [B B][. .] sunpc1 Is this behaviour intended? How could I map and bind processes in different ways on a command line without a rankfile, e.g. in the following way? rank 0=linpc1 slot=0:0-1 rank 1=sunpc0 slot=0:0 rank 2=sunpc1 slot=0:0 Thank you very much for any reply in advance. Kind regards Siegmar
