If I run mutilple knime jobs, will each one take a different core cpu? Can I specify a core?
I am not sure this answers your question, but you can set the affinity of the processes from the Windows Task Manager (context menu: Set Affinity...). I guess with PowerShell you can do similar things programmatically too.
Hope this helps, gabor
If you're mostly after performance, the "parallel execution" node set in the Labs extensions may prove useful as well.