Hi Paul,
Thanks for your suggestion that it could be a memory issue. The test you proposed results in a syntax issue for me because I can't include single quotes within the nohup command (a single quote ends the command).

However, I monitored the memory usage of one subject using htop (it continuously grew... to 48GB by the end... yikes!). Is it possible that there is a bug in the code where the memory usage keeps growing? Or perhaps it's really because of the 318 parcels.

I have decreased the number of subjects that can be run at once based on our total ram of 256GB. So, while it was fine to run 32 subjects at once on our 32-core machine for 3dDWUncert and other AFNI commands, it appears that it would be best to manually decreased it to ~5 subjects in parallel to be safe for 3dTrackID. It makes sense because I initially decreased to 25 subjects and then 20 and then 15 and they still crashed. At 5, so far so good.

Thanks again for the memory hint.



Edited 2 time(s). Last edit at 03/03/2021 05:03AM by eji.