jupyterkdb+

How to change the q command in qJupyter?

enter image description here

I want to change

Starting Kernel: ['q', 'jupyter_kernel.q' ... ]

to

Starting Kernel: ['taskset -c 1,2 ${QHOME}/l64/q', 'jupyter_kernel.q' ... ]

The debug comes from running :

jupyter console --kernel=qpk --debug

which is the standard exec command here :

https://github.com/KxSystems/jupyterq

Solution

  • 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:

    jupyter output showing taskset