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NetLogo / LevelSpace

This is the LevelSpace extension repository. LevelSpace allows you to run NetLogo models |: from inside NetLogo models :|
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Run single threaded in BehaviorSpace #130

Closed qiemem closed 5 years ago

qiemem commented 6 years ago

Since BehaviorSpace already does much better parallelization than LS can, we should just run single threaded in BehaviorSpace. Especially in a cluster, since communication between processes becomes more expensive, running with more threads can actually make things slower. This is a super bad problem.

qiemem commented 5 years ago

The initial evidence for this came from running LS models on NUs Quest cluster. We found that running with more virtual processors allocated to NetLogo actually resulted in slower runs. However, In retrospect, I believe the models we were running didn't actually leverage LS's parallelism anyway. Thus, this needs to be re-evaluated.

qiemem commented 5 years ago

I've confirmed that this problem was actually due to the way we were distributing NetLogo on Quest nodes and actually has nothing to do with LevelSpace. I've since fixed the job dispatch script. BehaviorSpace actually synchronizes pretty regularly anyway, so until we see evidence of this being a problem, I'm going to close this.