How to use only one node for a Condor cluster job?

StackOverflow https://stackoverflow.com/questions/20890319

  •  23-09-2022
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Question

I need to run lots of jobs (a pipeline) on a Condor cluster but it has to be on one node. So I need to do 2 things:

  • How do I ask Condor for an available node?

  • How do I tell Condor to run a job on that node?

I imagine this is very simple, but I'm deep in the docs with no luck.

Was it helpful?

Solution

Simply set a job requirement to run on a specific node.

requirements = $(requirements) && (TARGET.Machine == "somenode")

Selection of that node is up to you. If you use a DAG you can have a "node selection" job and then rewrite submit files as I outline here https://stackoverflow.com/a/27590992/174430.

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