Reply To: Run Jupyterq notebook with limit CPU cores

[rocuinneagain]

You could start Jupyter with a core restriction:

taskset -c 0-15 jupyter notebook 

Or see this answer I posted previously: (you could choose 0-15 rather than 0,1)

https://stackoverflow.com/a/77481466/4256419

Edit the file https://github.com/KxSystems/jupyterq/blob/master/kernelspec/kernel.json

{
 "argv": [
  "taskset",
  "-c",
  "0,1",
  "q",
  "jupyterq_kernel.q",
  "-cds",
  "{connection_file}"
 ],
 "display_name": "Q (kdb+)",
 "language": "q",
 "env": {"JUPYTERQ_SERVERARGS":"","MPLBACKEND":"Agg"}
}

If you have already installed you can ensure Jupyter picks up the changes by reinstalling the kernel:

python -m jupyter kernelspec install --user --name=qpk /path/to/kernelspec

And you can validate in a notebook with system"taskset -pc ",string .z.i

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