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Hi, it did crash this time - 'out of memory' (please see the output below). I did monitor the free swap memory (in top) and it was between 116 and 111 M. Thanks for your help. Zrinka ------ FAST - FMRIB's Automated Segmentation Tool Version 3.1 Image: ../data/structural_brain.img T1-weighted image Imagesize : 256 x 256 x 128 Pixelsize : 1 x 1 x 2 Initial K-means segmentation... 10 main iterations ... Estimating PVE... out of memory ---------- On Thu, 23 Aug 2001 12:56:52 +0100, Stephen Smith < [log in to unmask]> wrote: >Hi - ok - that's good - so FAST with the basic options works. Now could >you do the same with the more comlete test which is run inside FEEDS, ie >type > >fast -od /tmp/structural_brain -ob -or -e -ov structural_brain > >presumably this will fail - the errors messages will hopefully give us >some clue why. One possibility is that you are running out of swap space - >you may want to watch top whilst it is running to check that this is not >the problem. > >Thanks, Steve. > > Stephen M. Smith > Head of Image Analysis, FMRIB > > Oxford University Centre for Functional MRI of the Brain > John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK > +44 (0) 1865 222726 (fax 222717) > > [log in to unmask] http://www.fmrib.ox.ac.uk/~steve