Nipype ANTs registration build template takes very long time

I trying this code to generate a template out of 12 images.

Despite each image being only ~7 MB, the workflow did not even finish BeginANTS (registration) in 9 hours. I ran it with MultiProc on 6 cores of i7-860.

As someone new to MRI processing, I would like to make sure it’s not a problem with the workflow before I try running it on AWS. Is it normal to see registration take this much CPU time?

  • ANTs: 2.1.0 (latest Neurodebian)
  • Nipype: 1.2.3 (latest)

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