std priority and memsave priority in SCIP node selectors

Question

I noticed that there are two types of priorities in : memsave prio and std priority. When does it switch between the two? Is there a threshold parameter that can be set to influence this switching?

score 3 · Accepted Answer · answered Jul 04 '19 at 14:57

3

Yes, parameter memory/savefac:

# fraction of maximal memory usage resulting in switch to memory saving mode
# [type: real, advanced: FALSE, range: [0,1], default: 0.8]
memory/savefac = 0.8

See also https://scip.zib.de/doc/html/PARAMETERS.php for documentation of SCIP parameters.

answered Jul 04 '19 at 14:57

Ambros

71
1

Thanks! What could be the maximal memory usage allowed? Is it also predefined? – pg2455 Jul 04 '19 at 17:53
sorry! I commented pretty early. I was able to get the parameter `limits/memory` to do what I want. – pg2455 Jul 09 '19 at 18:13

std priority and memsave priority in SCIP node selectors

1 Answers1