If you want to try it out you have to use > sparse-polys branch from #1840 pull request. Here is a sample code: > > In [1]: from sympy.polys.benchmarks.bench_solvers import * > > In [2]: %time eqs = eqs_165x165() > CPU times: user 2.12 s, sys: 0.01 s, total: 2.13 s > Wall time: 2.12 s > > In [3]: %time sol = solve_lin_sys(eqs, R_165) > CPU times: user 1.60 s, sys: 0.01 s, total: 1.60 s > Wall time: 1.59 s > > > > > >
Hi, I just tried the benchmark file from the latest git pull but was not able to achieve such good performance . I don't have GMP installed so using whatever that sympy uses by default. My test below shows solving these equations takes 32 secs, which is 27 times longer than generating them 1.2 s. This contrasts with your stats above which indicates solving these equations takes 1.6 s, which is even faster than generating them in 2.12s (is it even possible ??). Your solve_lin_sy() function is indeed much faster than the default solve(), taking over 600 s. However when I've tried size 248x248 and Sage's solve() still solves under two min but your solve_lin_sys() takes over 20 mins, at which point I just gave up and kill the process. (If you need these data let me know) All the tests below were done on my MacBook in 2011, 2.3 Ghz i3 with 8 GB Ram . Perhaps I should install GMP and try again ? In [1]: import bench_solvers In [2]: %time _ = bench_solvers.time_eqs_165x165() CPU times: user 1.18 s, sys: 0.09 s, total: 1.27 s Wall time: 1.21 s In [3]: %time _ = bench_solvers.time_to_expr_eqs_165x165() CPU times: user 6.10 s, sys: 0.12 s, total: 6.22 s Wall time: 6.16 s In [4]: %time _ = bench_solvers.time_verify_sol_165x165() CPU times: user 8.07 s, sys: 0.05 s, total: 8.12 s Wall time: 8.10 s In [5]: %time _ = bench_solvers.time_solve_lin_sys_165x165() CPU times: user 32.52 s, sys: 0.11 s, total: 32.63 s Wall time: 32.62 s In [7]: eqs = bench_solvers.eqs_165x165() In [8]: eqs_ = [eqt.as_expr() for eqt in eqs] In [11]: from sympy import solve In [9]: %time _ = solve(eqs_,as_dict=True) #default solve() CPU times: user 610.49 s, sys: 2.05 s, total: 612.54 s Wall time: 614.68 s -- 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?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
