Hello,

I am running fMRI preprocessing using simexp/niak-boss:0.17.0 docker image. It's still running and not finished, but the news_feed.csv and other log files indicate failed time_filter in subset of subjects. So far, out of 60 or so subjects who were processed, 16 has failed time_filter, all failing at the same point. Here is the representative message in the worker.log.

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Temporal filtering of fMRI data
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Reading source data /export02/projects/BILGIN_niak_preprocess/resample/fmri_subject19_session1_rest_n.nii ...
Masking the brain ...
Filtering the time series ...

Something went bad ... the job has FAILED !
The last error message occured was :
niak:SI_processing : Please specify a cut-off frequency for low-pass filtering that is larger than 0 and smaller than the Nyquist frequency 0.00 Hz
File /usr/local/niak/commands/SI_processing/niak_filter_tseries.m at line 98
File /usr/local/niak/bricks/fmri_preprocess/niak_brick_time_filter.m at line 301
File /usr/local/niak/extensions/psom-2.0.2/psom_run_job.m at line 185
File /usr/local/niak/extensions/psom-2.0.2/psom_run_job.m at line 106
File /usr/local/niak/extensions/psom-2.0.2/psom_worker.m at line 161

I'm not sure why it's failing for some subjects but not for the majority of subjects. Do you have any idea why this may be or suggestions on what to do?

Ami Tsuchida