Is the SCIP solver multi-threaded in PULP?

Question

When I run the cord below at Jupyter-notebook,

solver = SCIP_CMD(path=scip_file, threads =7)

it returns the following error.

SCIP_CMD.__init__() got an unexpected keyword argument 'threads'

I checked the git-hub code but I could not find the keyword "threads" . Is the SCIP solver multi-threaded in PULP now? I downloaded SCIP ver 8.0.3 and pulp ver 2.7.0.

Leon · Accepted Answer · 2023-03-06 16:03:01Z

1

SCIP is by default single-threaded, which you could have figured out by searching previous asked questions

answered Mar 6, 2023 at 16:03

Leon

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2 Comments

Takeshi Matsuda Over a year ago

Thanks! Looking at the following website, it seems that multithreading is possible. But is it difficult? coin-or.github.io/pulp/technical/…

Leon Over a year ago

You can set that all you want in from the pulp-end. SCIP is single-thread only (unless you use UG as an external parallelization framework, but I don't think you will be able to do that from pulp)

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