sp = pf.h.sphere(c,0.065/pf['pc']) pot = sp.quantities["IsBound"](truncate=False, include_thermal_energy=False,

Hello again, First, thanks for the code fix. I am, however having some problems with the speed up -- at the moment, I'm not seeing any, unfortunately. I'm testing this with ~ 140000 cells of a zoom in AMR simulation. The number of levels in the region is 11, so it's very similar to what is posted on the YT clump-finding help page (http://yt.enzotools.org/doc/analysis_modules/clump_finding.html#treecode-opt...) -- namely the first figure for L=10 dataset with slightly fewer cells. When I run: treecode=False, opening_angle=0.0) the timing is just ~230 seconds. However, just changing to opening_angle=1.0 and treecode=True, the time is roughly 900 seconds. Higher opening angles only decrease the time by a little bit (opening_angle = 8.0 takes rougly 850 seconds). The error is still very small, so it is calculating the right number at least, just slower than I think it should, as the figures on the help page suggest around a factor of two speedup is expected. Is there anything that you see that I'm doing wrong? Thanks! Andrew ************************************************************* ** Andrew J. Davis andrew.davis@yale.edu ** ** Dept. of Astronomy 203-432-5119 ** ** Yale University www.astro.yale.edu/adavis ** *************************************************************