Hello,
I'm running probtrackx2 on one subject and I'm seeing that loading the bedpostx samples can take over 70gb RAM (I'm using an ubuntu-guest virtual machine on windows host). Is this normal? If so will I be able to process several subjects at the same time at all? If I decide to analyze 4 subjects that would require a machine with at least 280gb, right?
I don't think there is anything wrong with my command:
probtrackx2 --fibthresh=0.01 --sampvox=0.0 --cthr=0.200 --distthresh=0.000 --forcedir --loopcheck -m /data/sub01/no_diff_brain_mask.nii.gz --nsamples=5000 --nsteps=2000 --onewaycondition --opd --os2t --dir=/data/probtrackx2 --samples=/data/sub01/bedpostx.bedpostX/merged --seed=/data/sub01/seeds/L-Hippocampus.nii.gz --steplength=0.500 --targetmasks=targets.txt
The targets.txt file contains a single region and the bedpostx.bedpostX contains:
merged_f1samples, merged_f2samples, merged_ph1samples, merged_ph2samples, merged_th1samples, merged_th2samples.
Is the memory consumption reasonable?
Best regards,
Sam
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