UDP and archipelago about pagmo2 HOT 5 CLOSED

@jmllorens are you on Python 2?

from pagmo2.

Yes, sorry, I should have mentioned it.

from pagmo2.

For pagmo2 we made the decision to require ipyparallel for parallel operations in Python 2 Linux. The reasons have to do with some technical details about how the multiprocessing module works in Python 2 in a Linux environment. Basically, it boils down to the fact that Python 2 in Linux does not allow us to enforce a behaviour of the parallel bits of pagmo consistent with the behaviour on other platforms and/or Python 3.

Note that you don't need an actual cluster to run pygmo in parallel with ipyparallel. You just need to run the

ipcluster start

command in a separate shell. This will setup a "local" cluster with a number of processes equal to the number of cores on your machine. After the cluster has been started, you can fire up pygmo and everything should work.

from pagmo2.

It works without problems now. Seems a good decision. I was a bit scared at first, because even without cluster, sometimes a few files should be edited. But the setup of ipcluster is rather straightforward.

Migration to pagmo2 completed for my current optimization.

Thanks for your help.

from pagmo2.

No problem!

Note that there are missing features in the current archipelago wrt pagmo 1.x (the topology/migration bits are not there yet). We will add them back soon.

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