I meant to say, "Today I finally fixed mpn_mulmod_2expp1 to use the Nussbaumer trick in the FFT region".
On 20 March 2014 00:44, Bill Hart <goodwillh...@googlemail.com> wrote: > Today I finally fixed mpn_mulmod_2expp1 to use the FFT wraparound trick in > the FFT region. > > As mpn_mulmod_bnm1 uses this function, this means that GMP-ECM will now be > able to use MPIR more efficiently. > > I think that much of our mulmod_2expp1 and mulmod_bnm1 code needs > rewriting, but this can wait until someone can do it properly. > > I also added some tuning for the new division functions. I'm not convinced > it is picking the right thresholds, based on my own timings. But it's coded > correctly, so there's nothing I can do about it. At least the division code > doesn't seem to slow down with the new tuning values. > > Tomorrow I will add some tuning functions for the new GMP combinatorics > functions that we added. I will also fix a bug in the fft tuning code which > causes it to crash on some systems. > > This should hopefully complete all the new features for MPIR 2.7 and we > can move on to closing all the open tickets for the release. > > I have essentially until the end of next week to do as much as I can, > after which I will have to work weekends if it isn't done. > > After tomorrow we will need to retune MPIR on as many platforms as we can. > Help with that would be appreciated. > > By the way, after May 31st we'll lose access to about half the machines we > build on, due to one of the build farms closing down. So if anyone has > access to lots of heterogeneous hardware with linux, git and recent gcc on > it, please let us know. > > Bill. > -- You received this message because you are subscribed to the Google Groups "mpir-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to mpir-devel+unsubscr...@googlegroups.com. To post to this group, send email to mpir-devel@googlegroups.com. Visit this group at http://groups.google.com/group/mpir-devel. For more options, visit https://groups.google.com/d/optout.
