On Sat, Jul 6, 2013 at 1:52 PM, Saurabh Jha <saurabh.j...@gmail.com> wrote:
> Hi, > > I have been working on the dense matrix for the last few days. The PR is > [1] > > I have written some Profile results in [2]. Here I draw some conclusions. > I would try profiling much larger matrices, so that you can see what is slowing it down when it is actually slow. > > There is an absolute need of a more efficient data structure to store and > use dense matrices. The current implementation with all of the > _handle_creation_matrix, copy and lambda calls seems to be bottlenecks to > me. I think that for internal use, matrices can be represented just as > list of lists like if we call Matrix.tolist(). What is really the issue now > is how the matrices should be represented in top levels, we can't just > return list of lists. Should this issue be deferred for above levels, where > we would have a unified representation of all the matrices and all the user > interface stuff? Or should I tackle this problem right now. > > Also, it seems that there is no need to enter the individual elements like > ZZ(3) instead of 3, the results are no different. The functions make the > calls themselves in their course of execution. > Not if you are using Python ground types, but what if you are using gmpy ground types? Aaron Meurer > I now believe that the addition of domains along with a new data structure > will help matrices improve it's speed a lot. > > -Saurabh > > [1] https://github.com/sympy/sympy/pull/2248 > [2] > http://sympymatrix.blogspot.in/2013/07/profile-results-of-dense-matrix.html > > -- > 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 sympy+unsubscr...@googlegroups.com. > To post to this group, send email to sympy@googlegroups.com. > Visit this group at http://groups.google.com/group/sympy. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- 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 sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at http://groups.google.com/group/sympy. For more options, visit https://groups.google.com/groups/opt_out.
