[pymvpa] sphere_gnbsearchlight & Monte Carlo Testing

Yaroslav Halchenko debian at onerussian.com
Wed Oct 24 13:05:41 UTC 2012

On Wed, 24 Oct 2012, wolf zinke wrote:
> This really sounds like a nasty and painful bug to identify.
> >quick resolution for you:  set nproc=1
> Setting 'nproc=1' gave me indeed a more variable distribution. 

Current master should work fine with nproc > 1 too now ;)

> This
> bug and its solution is only affecting the sphere_searchlight,
> right? It is not affecting the constant values of the
> gnb_searchlight, because it does not allow the nproc option.

correct -- gnb_searchlight have completely separate issue per my
original (convoluted) description ;)

> There,
> I still have the constant results, that you explained before with
> the assumption of constant targets across partitioning schemes.

ah -- it was not that convoluted after all ;)
fix for that is WiP ;)

Yaroslav O. Halchenko
Postdoctoral Fellow,   Department of Psychological and Brain Sciences
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
Phone: +1 (603) 646-9834                       Fax: +1 (603) 646-1419
WWW:   http://www.linkedin.com/in/yarik        

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