afni.nimh.nih.gov

Hi, again-

One more thought on this-- what is the output of:

3dinfo -extent  DSET

... where DSET is your input to @SSwarper? If your data set has weird coordinates that aren't ~approx centered around (x,y,z) ~ (0,0,0), that could conceivably cause some issues, too, for speed/memory.

--pt