As far as I know, an up to date Flint supports multivariate polynomial rings, so this should go much faster if you just create one ring. (assuming it is already used in Nemo).
On Tue, 27 Dec 2022, 10:38 Grégory Vanuxem, <[email protected]> wrote: > Le lun. 26 déc. 2022 à 23:54, Grégory Vanuxem <[email protected]> a > écrit : > > [snippet]] > > > FLINT 2 via the Nemo library in Julia > > =================================================== > > julia> R, x = PolynomialRing(ZZ, "x"); > > julia> S, y = PolynomialRing(R, "y"); > > julia> T, z = PolynomialRing(S, "z"); > > julia> U, t = PolynomialRing(T, "t"); > > julia> f = x + y + z + t + 1 > > t + z + y + x + 1 > > julia> p = f^30; > > julia> @time q = p*(p+1); > > 32.041742 seconds (8.72 M allocations: 337.483 MiB, 3.31% gc time, > > 0.02% compilation time) > > julia> @time q = p*(p+1); > > 30.781938 seconds (5.67 M allocations: 277.926 MiB, 0.29% gc time) > > In fact, I just wrote to flint-devel and nemo-devel google groups > about the regression shown by this bench I ran around march 2020, the > beginning of the 1st World COVID 19 containment. I was highly > surprised yesterday. > > March 2020: > R, x = PolynomialRing(ZZ, "x"); > S, y = PolynomialRing(R, "y"); > T, z = PolynomialRing(S, "z"); > U, t = PolynomialRing(T, "t"); > f = x + y + z + t + 1 > p = f^30; > @time q = p*(p+1); > 20.099625 seconds (2.32 M allocations: 102.120 MiB, 0.78% gc time) > > Regards, > __ > Greg > > -- > You received this message because you are subscribed to the Google Groups > "FriCAS - computer algebra system" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/fricas-devel/CAHnU2db%2BsWgeg47Q3eoTsJYOCZJ96hCLJiopmz1DwwtB8zB5Rw%40mail.gmail.com > . > -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/fricas-devel/CAAWYfq3522qaq_sm4Ypx3fcUmf2LfPsuRW7Hy2rRaj3jRjSe7Q%40mail.gmail.com.
