I think you are at the limit of what is possible. You have TR=2 and Ntp=255 for a total scan time of 510sec. You have 9 event types, each 5stim+2null=7sec long, each repeated 8 times. This calls for 504 for stimulation and so only 6 sec total left for jitter. doug
On 05/13/2013 05:28 AM, Koolschijn, Cédric wrote: > Dear FS-experts, > > I've been using optseq for many years without problems, however, I run > into a couple now. > My code is the following: > > optseq2 --ntp 255 --tr 2.0 --tprescan 4.0 --psdwin 0.0 16.0 1 --ev > Gain2 5.0 8.0 --ev Gain4 5.0 8.0 --ev Gain6 5.0 8.0 --ev Gain8 5.0 8.0 > --ev Loss2 5.0 8.0 --ev Loss4 5.0 8.0 --ev Loss6 5.0 8.0 --ev Loss8 > 5.0 8.0 --ev Catch 5.0 8.0 --tnullmin 2.0 --tnullmax 6.0 --tsearch 24 > --focb 100 --ar1 .37 --evc 1 1 1 1 -1 -1 -1 -1 0 --evc -1.5 -.5 .5 1.5 > -1.5 -.5 .5 1.5 0 --evc -1.5 -.5 .5 1.5 1.5 .5 -.5 -1.5 0 --cost eff > --nkeep 3 --o output_run1 > > If I run this on a computational cluster (CentOS 5) with more than > enough RAM, I get the following message after on screen summary: > outstem = output_run1 > *** glibc detected *** optseq2: malloc(): memory corruption: > 0x0000000003f3e4e0 *** > *** glibc detected *** optseq2: malloc(): memory corruption: > 0x0000000003f3e4e0 *** > > And nothing happens after that. > > If I run the same code on my iMac Lion 10.7.5, it seems to be working, > but I get multiple "warnings": > /usr/pubsw/packages/vxl/1.13.0/src/core/vnl/algo/vnl_qr.txx: > vnl_qr<T>::solve() : matrix is rank-deficient by 112 > > The number at the end changes each time. > In addition, the process consumes my RAM (8GB) like it's nothing. > > The strange thing is, I do get usable output. > > > Any ideas what might be causing this? > > Many thanks! > > Cédric > > ------------------------------------------------------------ > P.C.M.P. Koolschijn (Cédric), PhD > Dutch Autism & ADHD Research Center > Brain and Cognition > Amsterdam, The Netherlands > /E /p.c.m.p.koolsch...@uva.nl <mailto:p.c.m.p.koolsch...@uva.nl> > /W /http://www.dutcharc.nl > > > > > > > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2 www.nmr.mgh.harvard.edu/facility/filedrop/index.html Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
