Hi Jason, On Thu, Nov 12, 2009 at 04:56:00PM -0500, Jason Bandlow wrote: > Out of the hospital, but still not able to move around very much, > unfortunately. It looks like it will be quite a long recovery (4-6 > months or so). But she is in good spirits.
Ouch; that's a long time. My best wishes for her! And bon courage to you! >> Do you have time to rerun your benchmarks shortly for the SF patch >> (say today or tomorrow)? If not, may I just set a positive review, >> assuming you will create a ticket if there remains some performance >> regression? > > Positive review. Thanks! > I think there are still some performance issues, but they seem much > less severe than before. (Kronecker product still seems slow, for > example.) Ok. One thing that could have an influence is that the coercion model currently seems to not always pickup a shortest coercion path (see the log file on #7420). That should be a fairly easy fix. > But in the brief time I had to look at this, I was > getting fairly inconsistent results from trial to trial, and > multiple trials are slow because I need to restart sage. Actually, > what I need to do is figure out how to delete the appropriate caches > from within sage so I can perform many tests in an automated way, > but I haven't worked that out yet. (Deleting 's' and recreating it > isn't enough--the cache is very persistent!) One thing you could try would be to change the base ring. I am not sure though there is no shared cache (typically, Symmetrica might be doing some caching). One choice would be QQ[x], QQ[y], ... though working with polynomials may have a strong influence. Another option would be a finite but large enough field. In any case, we need a way to script such benchmark tests; so please keep notes on how you think it would be best to proceed! > I hope to have time to look at this in a serious way sometime in the > next couple of weeks. Then I will create a ticket which is much > more precise than I am being here. Thanks. No rush! Cheers, Nicolas -- Nicolas M. ThiƩry "Isil" <nthi...@users.sf.net> http://Nicolas.Thiery.name/ --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sage-combinat-devel" group. To post to this group, send email to sage-combinat-devel@googlegroups.com To unsubscribe from this group, send email to sage-combinat-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-combinat-devel?hl=en -~----------~----~----~----~------~----~------~--~---