cluster:208
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cluster:208 [2021/10/18 18:55] hmeij07 [Changes] |
cluster:208 [2022/05/26 17:23] hmeij07 [Feedback] |
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| + | ===== gpu testing ===== | ||
| + | |||
| + | * n33 only, free of jobs, 4 gpus, 16 cores, 16 threads, 32 cpus | ||
| + | |||
| + | * submit one at a time, observe where pmemd.cuda ends up | ||
| + | * | ||
| ===== Changes ===== | ===== Changes ===== | ||
| Line 430: | Line 436: | ||
| </ | </ | ||
| - | ** Weight | + | ** Partition |
| - | Weight nodes by the memory per logical core: jobs will be allocated the nodes with the lowest weight which satisfies their requirements. So CPU jobs will be routed last to gpu queues because they have the highest weight (=lowest priority). | + | If set you can list more than one queue... |
| + | < | ||
| + | srun --partition=exx96, | ||
| + | </ | ||
| + | |||
| + | The above will fill up n79 first, then n78, then n36... | ||
| + | |||
| + | ** Node Weight Priority ** | ||
| + | |||
| + | Weight nodes by the memory per logical core: jobs will be allocated the nodes with the lowest weight which satisfies their requirements. So CPU jobs will be routed last to gpu queues because they have the highest weight (=lowest priority). | ||
| < | < | ||
| hp12: 12/8 = 1.5 | hp12: 12/8 = 1.5 | ||
| Line 460: | Line 475: | ||
| Makes for a better 1-1 relationship of physical core to '' | Makes for a better 1-1 relationship of physical core to '' | ||
| - | Deployed. My need to set threads=1 and cpus=(quantity of physical cores) | + | Deployed. My need to set threads=1 and cpus=(quantity of physical cores)...this went horribly wrong it resaulted in sockets=1 setting and threads=1 for each node. |
| --- // | --- // | ||
| + | |||
| + | We did set number of cpus per gpu (12 for n79) and minimum memory settings. Now we experience 5th job pending with 48 cpus consumed. When using sbatch set -n 8 because sbatch will override defaults. | ||
| + | |||
| + | < | ||
| + | srun --partition=test | ||
| + | </ | ||
| \\ | \\ | ||
| **[[cluster: | **[[cluster: | ||
cluster/208.txt ยท Last modified: 2022/11/02 17:28 by hmeij07
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