UserWarning: Casting data from int16 to float32

[levchenkoegor]

• dmriprep version: 0.2.2
• Python version: 3.7
• Operating System: HPC cluster

Description

Hello!

I tried to run dMRIPrep on HPC using singularity module and faced with an error that I don't understand.

What I Did

I run the dMRIPrep like this:

module load singularity
singularity run --cleanenv ~/my_images/dmriprep-0.2.2.simg ~/OASIS-3/raw_data/controls/ ~/OASIS-3/derivatives_dmriprep/controls/ participant --participant-label $(cat ~/OASIS-3/controls_dwi_list.txt) -w ~/OASIS-3/work_dmriprep/controls/ --fs-license-file ~/freesurfer_license.txt --fs-no-reconall --skip-bids-validation

Firstly, I don't understand why it is taking only the last subject of the list. You can find it in the log file attached.
output_dmriprep_oasis_controls_1try.txt

The file controls_dwi_list.txt is attached.
controls_dwi_list.txt

Secondly, it is a Warning in the end of the log:

	 [Node] Finished "dmriprep_wf.single_subject_OAS31172_wf.anat_preproc_wf.anat_reports_wf.norm_rpt".
/usr/local/miniconda/lib/python3.7/site-packages/nilearn/image/resampling.py:513: UserWarning: Casting data from int32 to float32
  warnings.warn("Casting data from %s to %s" % (data.dtype.name, aux))
/usr/local/miniconda/lib/python3.7/site-packages/nilearn/image/resampling.py:513: UserWarning: Casting data from int16 to float32
  warnings.warn("Casting data from %s to %s" % (data.dtype.name, aux))
/usr/local/miniconda/lib/python3.7/site-packages/nilearn/image/resampling.py:513: UserWarning: Casting data from int32 to float32
  warnings.warn("Casting data from %s to %s" % (data.dtype.name, aux))
/usr/local/miniconda/lib/python3.7/site-packages/nilearn/image/resampling.py:513: UserWarning: Casting data from int16 to float32
  warnings.warn("Casting data from %s to %s" % (data.dtype.name, aux))
/usr/local/miniconda/lib/python3.7/site-packages/nilearn/image/resampling.py:513: UserWarning: Casting data from int32 to float32
  warnings.warn("Casting data from %s to %s" % (data.dtype.name, aux))
/usr/local/miniconda/lib/python3.7/site-packages/nilearn/image/resampling.py:513: UserWarning: Casting data from int16 to float32
  warnings.warn("Casting data from %s to %s" % (data.dtype.name, aux))

Can you tell me please how critical this warning to data processing?

Thank you for any ideas!