Also, you could split up the number of samples e.g. if you normally track with 25000 and have five processors, you could track 5 times with 5000 samples and add the result. This method is easier if you know a little shell scripting. -----Original Message----- From: FSL - FMRIB's Software Library [mailto:[log in to unmask]] On Behalf Of Tim Behrens Sent: Friday, August 31, 2007 5:39 AM To: [log in to unmask] Subject: Re: [FSL] Parallelise probtrackx Just split your seed mask into as many masks as you have processors, set them off independently, and add up the answers at the end. Cheers T On 31 Aug 2007, at 09:25, Ravi Shetty wrote: > I know it is possible to parallelise bedpostx but is it also > possible to parallelise probtrackx? If so is it > done using the same method? Thanks. > > -Ravi