Hi all, I need to calculate the virial properties (mass in particular) of 80,000+ haloes for perhaps up to 25 datasets. Actually, it's that many haloes at z=0, so fewer for higher z, but you get the idea. Can you guys suggest the best way to optimize this? My only good idea is to split up the entries in HopAnalysis.out into multiple files so each run of HaloProfiler has roughly the same amount of work to do. Of course, not making projections will speed things up too. Thanks! (For those of you getting this message twice, I realized yt-users is the appropriate place for this discussion. Sorry!) _______________________________________________________ sskory@physics.ucsd.edu o__ Stephen Skory http://physics.ucsd.edu/~sskory/ _.>/ _Graduate Student ________________________________(_)_\(_)_______________