[sage-support] Re: Matrix multiplication over finite fields

2007-10-11 Thread Simon King
Dear Joel, On Oct 9, 7:28 pm, "Joel B. Mohler" <[EMAIL PROTECTED]> wrote: > Hmm, that's a pretty big improvement over the SAGE time above. I suspect that > we will have to work a lot harder than either of our optimizations have so > far. After slightly improving my MeatAxe extension type for

[sage-support] Re: Matrix multiplication over finite fields

2007-10-09 Thread Joel B. Mohler
On Tuesday 09 October 2007 13:05, Simon King wrote: > Michael wrote: > > > When i take a 4x4 matrix over GF(7) with n=101, test function 1 > > > needs 92.50 s CPU time, but test function 2 only needs 1.49 s CPU > > > time! > > > Hence, in that case, MeatAxe (actually a very old version!!) appe

[sage-support] Re: Matrix multiplication over finite fields

2007-10-09 Thread Simon King
Dear sage-support team, Michael wrote: > > When i take a 4x4 matrix over GF(7) with n=101, test function 1 > > needs 92.50 s CPU time, but test function 2 only needs 1.49 s CPU > > time! > > Hence, in that case, MeatAxe (actually a very old version!!) appears > > to be faster than Sage built

[sage-support] Re: Matrix multiplication over finite fields

2007-10-05 Thread Simon King
Dear All, i hope it is ok if i reply to all of you in one mail. In reply to Michael: > Sage has so far only optimized the large case, but 2.8.6 (out in a day or > so) should contain a patch that improves the small case also. There is > active work going to improve the small case even further. G

[sage-support] Re: Matrix multiplication over finite fields

2007-10-04 Thread Martin Albrecht
On Thursday 04 October 2007, Simon King wrote: > Dear sage-support team, > > i'm trying to convince my boss about using modern linear algebra > software (as part of a project on group cohomology rings). However, i > need better arguments. Perhaps you have some? > > I wrote a toy dynamic module for

[sage-support] Re: Matrix multiplication over finite fields

2007-10-04 Thread David Joyner
On 10/4/07, Simon King <[EMAIL PROTECTED]> wrote: > > Dear sage-support team, > > i'm trying to convince my boss about using modern linear algebra > software (as part of a project on group cohomology rings). However, i > need better arguments. Perhaps you have some? This is separate from your qu

[sage-support] Re: Matrix multiplication over finite fields

2007-10-04 Thread Michael Abshoff
Simon King wrote: > > Dear sage-support team, Hello Simon, > > i'm trying to convince my boss about using modern linear algebra > software (as part of a project on group cohomology rings). However, i > need better arguments. Perhaps you have some? > > I wrote a toy dynamic module for Sage provid