Bureaucrats, cc_docs_admin, cc_staff
2,879
edits
Advanced MPI scheduling: Difference between revisions
no edit summary
No edit summary |
No edit summary |
||
| Line 43: | Line 43: | ||
srun application.exe | srun application.exe | ||
This job is the same size as the last one: 16 tasks (that is, 16 MPI processes), each with 4 threads. The difference here is that we are sure of getting exactly 4 tasks on each of 4 different nodes. Recall that <code>--mem</code> requests memory ''per node'', so we use it instead of <code>--mem-per-cpu</code> for the reason described earlier. | This job is the same size as the last one: 16 tasks (that is, 16 MPI processes), each with 4 threads. The difference here is that we are sure of getting exactly 4 tasks on each of 4 different nodes. Recall that <code>--mem</code> requests memory ''per node'', so we use it instead of <code>--mem-per-cpu</code> for the reason described earlier. | ||
=== Why srun instead of mpiexec or mpirun? === | === Why srun instead of mpiexec or mpirun? === | ||