Hi,
I am using FS 4.01. I have processed 400 scans with autorecon-all. I am trying to analyse ~350 of them in qdec. I have done the preprocessing (recon-all -qcache -measure thickness) and prepared the required files (attached).
I can start qdec and conduct an analysis. I can also visualise some results but invariably after moving between the contrasts a seg fault occurs (logs attached, I was going to attach 2 but one of them was 12MB in size, does this sound like a normal output length?).
I have a dual quad core Xeon 5355 with 8 Gig of RAM and plenty of disk space.
I don't think it makes any difference but just in case... I computed my own average. Make_average_surface went ok but make_average_volume was killed because it required too much resources. I figured I did not require the volume for the qdec analysis so I used my average (older people) for -qcache smoothing. However, when I first tried to visualise the results qdec did not like the fact that there was no curvature information (I was going to attach a log file but it was 6MB in size) in my average subject so I linked to fsaverage.
Any help is welcome.
Cheers
Nic