are all the steps taking longer, or are some binaries longer than others On Thu, 15 Oct 2009, Alexander Zaitsev (CNI) wrote:
> We are having the same issue after upgrade to FreeSurfer 4.5. > It takes more than 1.5 hrs for the jobs that used to complete in less > than 30 minutes. > > Alex Zaitsev > > Chris Hyatt wrote: >> >> We recently installed a Dell Blade server cluster running Freesurfer >> v4.5 under CentOS 64-bit Linux, with each Blade server having two >> Intel Xeon E5405 quad core CPUs, running at 2.0 GHz, 2x6144 KB cache >> and 16 GB of RAM, with a swap file of size between 8-16 GB. >> >> Using a single Blade server of this cluster, a single subject takes >> between 70 and 100 minutes to complete the Freesurfer autorecon1 >> stage, which seems overly long. >> >> We also have another computer, running an older version of Freesurfer >> (v4.0.5) under Fedora 64-bit Linux. This computer is similar to a >> single Blade server - it has two Xeon X5482 quad core CPUs, running at >> 3.2 GHz, 2x6144 KB cache and also with 16 GB RAM with a swap file of >> 16 GB. This computer can complete autorecon1 stage in about 18 minutes. >> >> The only real difference with this computer and the Blade computers >> that I aware of is the clock speed (3.2 vs 2.0 GHz, 1.6x faster), so >> the Dell Blade computers should be able to complete autorecon1 in no >> worse than about 30 minutes. >> >> Does anyone have an idea as to why Freesurfer v4.5 is running so slow >> on our Dell Blade cluster? Has anyone found the newest version of >> Freesurfer (v4.5) slower than v4.0.5? Thanks in advance for your help. >> ------------------------------------------------------------------------ >> >> _______________________________________________ >> 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 > > > _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
