Sage+Gurobi: Can I control how many processors vertex_coloring uses?

asked 2015-02-13 01:32:19 +0100

updated 2015-02-13 09:09:13 +0100

slelievre
17704 ●22 ●160 ●350 http://carva.org/samue...

I am using Sage to color some graphs, using a 32-processor Linux server. I am using the vertex_coloring command, with Gurobi as the LP solver.

I've noticed that for graphs that take more than a few minutes, the program seems to eventually settle on using 16 processors. It would be nice if I could tell Sage (or Gurobi?) to allow more or fewer processors. Is this possible?

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answered 2015-02-14 13:08:32 +0100

Nathann
1615 ●2 ●15 ●36

If you want to change Gurobi's parameters for threads you will probably be interested by this function:

http://www.sagemath.org/doc/reference...

Nathann

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Asked: 2015-02-13 01:32:19 +0100

Seen: 425 times

Last updated: Feb 14 '15

Sage+Gurobi: Can I control how many processors vertex_coloring uses? edit

1 Answer