| 43 | | |
| 44 | | |
| | 43 | = How to execute = |
| | 44 | * start mpd： |
| | 45 | {{{ |
| | 46 | mpdboot -n 4 -f machine_file |
| | 47 | }}} |
| | 48 | -n how many mpds to start[[BR]] |
| | 49 | -f hostsfile[[BR]] |
| | 50 | * list all nodes |
| | 51 | {{{ |
| | 52 | mpdtrace [-l] |
| | 53 | }}} |
| | 54 | -l show full hostnames and listreing ports and ifhn[[BR]] |
| | 55 | {{{ |
| | 56 | node101 |
| | 57 | node103 |
| | 58 | node102 |
| | 59 | hd05 |
| | 60 | }}} |
| | 61 | * executing |
| | 62 | {{{ |
| | 63 | mpiexec -n 12 ./mpi/a.out |
| | 64 | }}} |
| | 65 | -n number of processes to start |
| | 66 | 執行時，每個 node 上必須有一份執行檔才不會出現以下錯誤 |
| | 67 | {{{ |
| | 68 | problem with execution of a.out on hd05: [Errno 2] No such file or directory |
| | 69 | }}} |
| | 70 | * causing all mpds to exit |
| | 71 | {{{ |
| | 72 | mpdallexit |
| | 73 | }}} |
