Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision | Next revisionBoth sides next revision | ||
| doku:multimpi [2021/04/01 07:03] – markus | doku:multimpi [2021/04/01 07:08] – [VSC-4] markus | ||
|---|---|---|---|
| Line 5: | Line 5: | ||
| ==== VSC-4 ===== | ==== VSC-4 ===== | ||
| - | Sample Job when for running multiple mpi jobs on a VSC-4 node. Note: | + | Sample Job when for running multiple mpi jobs on a VSC-4 node. |
| + | |||
| + | Note: The " | ||
| + | |||
| + | < | ||
| + | mem_per_task * mytasks < mem_per_node - 2Gb | ||
| + | </ | ||
| + | |||
| + | The approx 2Gb reduction in available memory is due to operating system stored in memory. For a standard node with 96 Gb of Memory this would be eg.: | ||
| + | |||
| + | < | ||
| + | 23 Gb * 4 = 92 Gb < 94 Gb | ||
| + | </ | ||
| < | < | ||