I am using the provided workflow nipype.workflows.dmri.fsl.all_fsl_pipeline() to correct for b0 inhomogeneities, eddy currents and motion. If I run several times my whole pipeline - which includes all_fsl_pipeline() - a node inside all_fsl_pipeline() called eddy_openmp always gets executed even when there are no changes. Does anyone know why this behaviour?
Ok, going through the code I found that the function _gen_index (in nipype/nipype/workflows/dmri/fsl/artifacts.py line 235) rewrites the file index.txt everytime eddy is called and therefore, the node is executed… is that feasible?