Stephen, The 30 minute estimate for the -autorecon1 stage is no longer accurate. It got slower when we added a feature to improved the skull-strip step. The feature is to make use of an atlas to determine where skull and cerebellum might be. To use that atlas requires a registration to that atlas, and it is that registration (mri_em_register), that adds the extra 60 minutes.
However, we are looking into using the talairach.xfm transform in place of the talairach_with_skull.lta transform generated by mri_em_register for this atlas registration. So possibly the next release (v4.3.0) would return to the 30 minute -autorecon1 stage. Nick On Wed, 2009-03-04 at 21:47 -0500, Stephen Towler wrote: > Hi all. Documentation estimates 30 minutes for -autorecon1 on the > sample data provided with the most recent freesurfer release. Our 2008 > iMac with 4GB of RAM takes about 90 minutes. Throughout the job CPU > utilization was high but there was plenty of free RAM. > > Is 90 minutes common for similarly equipped leopard systems? > > Thanks, > Stephen > > -- > > Stephen Towler > Graduate Student, Neuropsychology > Dept. Clinical and Health Psychology > > stow...@phhp.ufl.edu > calendar: http://cli.gs/9nvvDL > 352-273-8715 lab (Shands G078) > 352-273-6015 lab (HPNP) > 352-682-5231 mobile > 352-273-6156 fax > > Price Lab > PO Box 100165 > 101 S. Newell Drive > University of Florida > Gainesville, FL 32610 > _______________________________________________ > Freesurfer mailing list > Freesurfer@nmr.mgh.harvard.edu > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer > > _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
