I’m new to fmriprep/most of this stuff generally. I am setting up my lab’s compute infrastructure in Google Cloud and ran a command to execute fmriprep docker on my instance with the flags --nthreads 8 --omp-nthreads 8 --mem-mb 24000 (to specify that the system should utilize 24GB of ram/8 threads).
However, when I checked the usage with docker using - sudo docker ps -q | xargs sudo docker stats --no-stream during the execution, the system never used more than 3GB of ram. It seems from reading posts on this forum that for a single subject fmriprep running with this ram and CPU usage should take on the order of 1-3 hours, but mine takes days to execute for a single subject (including freesurfer). Is there a way I can specify to use all of the available ram?