[pymvpa] multi-core support for cross-validation?

Nick Oosterhof n.n.oosterhof at googlemail.com
Wed Dec 23 10:40:33 UTC 2015

> On 23 Dec 2015, at 11:34, Maria Hakonen <maria.hakonen at gmail.com> wrote:
> I wonder if multi-core support is available for cross-validation? 

I don't think it's available at the moment. 

I made some attempts in the past to implement this, but if memory serves me well I ran into issues to properly use conditional arguments together with parallallization. 

> I find that cross-validation with large number of permutations is very slow. 

Maybe there's another part of the analysis pipeline that you could parallellize? Searchlights are parallellized, and if you want to compute a series of null maps for permutation testing, then those could in principle also be generated in parallel. 

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