On Sunday, September 8, 2013 1:55:12 AM UTC+1, Cristóvão Sousa wrote: > Hi all, > > I just want to announce that a new implementation of Common Subexpression > Elimination (CSE) routine has been merged into master (PR: > https://github.com/sympy/sympy/pull/2355). > > This new implementation is really faster, especially when no external > optimizations are performed (the default now). > And there is a new option for even faster results: order='none'. > > Here is a comparison example: http://nbviewer.ipython.org/5986996 > As it can be seen, for the no optimizations case, there is a reduction > from _1 minute and half_ to _580 ms_, > from the previous to the new implementation. >
150x faster. > With the order='none' option, the new implementation drops to _91 ms_! > 1000x faster. > > For all of you who wasn't using CSE because of it being a bottleneck, CSE > must be reconsidered again. > > Thanks, > Happy code, > Cristóvão D. Sousa > > -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. For more options, visit https://groups.google.com/groups/opt_out.
