Hi - yes, this is mentioned every now and then; this is probably because
of the 2GB limit for a given process in some linux kernels. The first
thing to try is to get your sysadmin to change this limit in the kernel
tuning if possible.
Cheers.
On Wed, 1 Dec 2004, Mike Patterson wrote:
> Hi all,
> I've searched through the list, but I didn't find a specific answer
> to the problem I keep getting where film_gls does not create all the
> files correctly if the data file is too big. This data file is about
> 1300 images and 181 Mb in compressed nifti format. I have 2Gb of RAM and
> 4Gb of swap space running on Linux Red Hat Fedora 1 and FSL 3.2. Has
> anyone successfully processed large data sets? FEAT works fine for smaller
> image sets and successfully ran the FEEDS data on this computer.
> Do I have to break up the data in some way before using FEAT?
>
> thanks,
>
> Mike
>
> p.s. The exact error messages outputted in FEAT are listed below:
>
> /usr/local/fsl/bin/contrast_mgr stats design.con
> ** ERROR: nifti_image_read(stats/sigmasquareds): can't open header file
> ** ERROR: nifti_image_open(stats/sigmasquareds): bad header info
> Error: failed to open file stats/sigmasquareds
> Error:: FslGetDim: Null pointer passed for FSLIO
>
>
Stephen M. Smith DPhil
Associate Director, FMRIB and Analysis Research Coordinator
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
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