Hi - that's running the old C code - if you are still using FSL3.3
then it's worth trying changing the relevant tbss script to use
avwmerge++ instead of avwmerge and see if that fixes it.
Cheers.
On 16 Aug 2007, at 16:39, Brandon Whitcher wrote:
> I recently received the following ERROR when performing
> tbss_3_postreg (FSL
> v3.3 on RHEL, x86_64) on 153 subjects who have been registered to the
> high-resolution FA template.
>
> merging all upsampled FA images into single 4D image
> creating mean FA
> Aaargh not enough memory!
> skeletonising mean FA
> ** ERROR: nifti_image_read(mean_FA): can't open header file
> ** ERROR: nifti_image_open(mean_FA): bad header info
> Error: failed to open file mean_FA
> ERROR: Could not open image mean_FA
> Image Exception : #22 :: Failed to read volume mean_FA
> terminate called after throwing an instance of 'RBD_COMMON::Exception'
> /scratch/apps/fsl/fsl_3.3/bin/tbss_3_postreg: line 89: 28994 Aborted
> ${FSLDIR}/bin/tbss_skeleton -i mean_FA -o mean_FA_skeleton
> now view mean_FA_skeleton to check whether the default threshold of
> 2000
> needs changing, when running:
> tbss_4_prestats [threshold]
>
> The workstation has 6GB of memory so I am a bit surprised to run
> into such a
> problem. Is there a problem with avwstats in that it can't handle
> such a
> large 4D volume? It is 182 x 218 x 182 x 153 = 1.1 billion 2-byte
> integers!!!
>
> Any suggestions?
>
> Brandon Whitcher
> GlaxoSmithKline
> Clinical Imaging Centre
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