Sorry, not sure - may be specific to your Linux flavour, but hopefully a
few minutes on Google should be enlightening.
Cheers, Steve.
On Thu, 9 Dec 2004, Mike Patterson wrote:
> Hi,
> I just asked the sysadmin to address this issue (about changing the
> memory limit per process) and I need more information about what specific
> paramater needs to be changed in the kernel.
> We currently use kernel 2.4.22-1.2188.nptlsmp on Fedora Core 1.
>
> Thanks,
>
> Mike
>
> > Date: Thu, 2 Dec 2004 09:11:13 +0000
> > From: Stephen Smith <[log in to unmask]>
> > Subject: Re: error in film_gls processing during FEAT due to large data file
> >
> > 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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