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Hi

This looks like a memory problem, have you monitored mem consumption?  
If it is then running this on a 64bit machine with a 64bit OS might  
work. Maybe increasing swap space is already good enough
hth
  Christian

On 24 Jun 2008, at 10:36, Hege Erdal wrote:

> Hi,
> I've been getting this message when I've tried to use mfast on t1  
> and t2
> pictures to extract white, grey and CFR. I'm using well-aligned  
> pictures
> with same dimensions, or so they seem. I'm doing this on FC-8, the  
> 32-bit
> version (but I think the processor is a 64-bit, if that makes a  
> difference).
>
> It works on some pictures, but not on all(cause of this errormessage).
> Anybody know what it means? And most important, how to fix it?
>
> /usr/local/fsl/bin/mfast -s 2 -c 3 -od
> /media/LaCie/Forsøk2/Dykkar_Bse_nei/Dykkar_Bse_brain
> /media/LaCie/Forsøk2/Dykkar_Bse_nei/Dykkar_Bse_brain
> /media/LaCie/Forsøk2/Dykkar_Bse_nei/Dykkar_Bse2_brain.nii.gz
>
> MFAST - Multispectral FAST              Version 3.53
>
> Channel 0: /tmp/fsl_nF1Bk2_Dykkar_Bse_brain
> Channel 1: /tmp/fsl_nF1Bk2_Dykkar_Bse2_brain
> Imagesize : 256 x 256 x 19
> Pixelsize : 0.898438 x 0.898438 x 6.64999
>
> Slice is too thick, 2D segmentation will be performed!
> initial segmentation by KMeans....
> 4 main iterations ...
> /usr/local/fsl/bin/mfast: line 44:  9311 Segmentation fault $ 
> {fastcom}_exe $args
> Finished
>
> Regards
> Hege