Hi Bruce and others!

I am still puzzeling how to speed up the process... I tried 4 prarallel sessions running exactly the same dataset as before. With 4 cores and 32 GB RAM I expected that I won't loose time / session. However, it was about 50% slower.

Shell 1:
recon-all -s ernie1  -i  /Applications/freesurfer/subjects/sample-001.mgz  -i  /Applications/freesurfer/subjects/sample-002.mgz  -all

Shell 2:
recon-all -s ernie2  -i  /Applications/freesurfer/subjects/sample-001.mgz  -i  /Applications/freesurfer/subjects/sample-002.mgz  -all

Shell 3:
recon-all -s ernie3  -i  /Applications/freesurfer/subjects/sample-001.mgz  -i  /Applications/freesurfer/subjects/sample-002.mgz  -all

Shell 4:
recon-all -s ernie4 -i  /Applications/freesurfer/subjects/sample-001.mgz  -i  /Applications/freesurfer/subjects/sample-002.mgz  -all

Before it took about 6,48h to process one dataset, but when running 4, the processing time increased
to 8.29h. Any ideas?

Freesurfer Rel. recon-all,v 1.379.2.73; freesurfer-Darwin-lion-stable-pub-v5.3.0.1

Best wishes,


Luke