use threading for these pools
use threading for these pools

oesteban/fmriprep,poldracklab/fmriprep,oesteban/preprocessing-workflow,poldracklab/preprocessing-workflow,oesteban/fmriprep,poldracklab/preprocessing-workflow,oesteban/preprocessing-workflow,oesteban/fmriprep,poldracklab/fmriprep,poldracklab/fmriprep