I'm currently testing several of the major GMP patches with gmp-4.2.2. Should have some results by this weekend.
On 9/12/07, mabshoff <[EMAIL PROTECTED]> wrote: > > > > On Sep 12, 10:37 pm, "William Stein" <[EMAIL PROTECTED]> wrote: > > On 9/12/07, mabshoff <[EMAIL PROTECTED]> wrote: > > > > > > > > > > > > > Kate Minola wrote: > > > > FYI - the following have recently > > > > been released: > > > > > > gmp-4.2.2 > > > > mpfr-2.3.0 > > > > ecm-6.1.3 > > > > > > Kate > > > > > Hello Kate, > > > > > #541, #542 and #642 in sagetrac respectively. I have to admit that I > > > added #642 only two hours ago. I expect that I will spend some time on > > > those tickets during Bug Day 3 (probably the 20th of September) > > > > Yep. However, one thing I want to add is that my understanding > > is that the GPL-only patches that make xgcd/gcd *vastly* faster > > for large numbers might only work with gmp-4.2.1, at least > > without a lot more work to port it, and if so we should wait > > for that patch to be updated (especially if gmp-4.2.2 is merely > > a build improvement over gmp-4.2.1). This sort of thing is > > just really cool: > > > > BEFORE the patch: > > sage: k=2000000; n = QQ.random_element(2^k); m=QQ.random_element(2^k) > > sage: time a=n+m > > CPU times: user 5.69 s, sys: 0.24 s, total: 5.93 s > > > > AFTER the patch: > > sage: k=2000000; n = QQ.random_element(2^k); m=QQ.random_element(2^k) > > sage: sage: time a=n+m > > CPU times: user 0.99 s, sys: 0.00 s, total: 0.99 s > > sage: len(str(n)) > > 1204120 > > > > Having fast arithmetic with million digits rational numbers can be really > > important... > > > > :) > > I consider the gmp update the tricky one. ecm should be straight > forward. I was concerned about mpfr but according to the SPKG.txt in > the current mpfr.spkg it is the "vanilla" distribution. I dropped in > mpfr-2.3.0 in a couple sage installations for fun last week and "- > testall" with the new release passed on all of them. So we might take > care of ecm and mpfr soon and sort out the gmp issues later. > > > Presumably mpfr and ecm would both work with gmp-4.2.1 if we have > > to stay with it for some amount of time. > > > > -- William > > Cheersm > > Michael > > > > > -- --09-F9-11-02-9D-74-E3-5B-D8-41-56-C5-63-56-88-C0-- Jason Worth Martin Asst. Prof. of Mathematics James Madison University http://www.math.jmu.edu/~martin phone: (+1) 540-568-5101 fax: (+1) 540-568-6857 "Ever my heart rises as we draw near the mountains. There is good rock here." -- Gimli, son of Gloin --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---
