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The workqueuemask is his negation. There are no function to get it to because the project want avoid maintain an algorithm.
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The cluster is installed with a real-time kernel on each node. It must execute orders without delay. So, some CPUs should be isolated from the scheduler kernel with isolcpus kernel parameter.
- To specify some CPU:
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isolcpus=<cpu number>,...,<cpu number> |
- To specify a range of CPU is:
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isolcpus=<cpu number>-<cpu number> |
We can merge these syntax to specify some CPU and ranges of CPUs.