On Thu, Feb 26, 2009 at 5:15 PM, Bill Hart <goodwillh...@googlemail.com> wrote:
> The FFT currently kicks in at about 5000-7000 limbs or so. Given that > each 64 bit limb is about 19 decimal digits that is at least 100,000 > decimal digits before the FFT is used. In a later version of MPIR > we'll have an FFT which kicks in much earlier (about 2000 limbs), but > it is a big project to change it over. That would explain why the different FFT tuning parameters didn't make a difference if the FFT code doesn't start until somewhere around 100,000 digits. I'm not running something around 105,000 digits so hopefully that will be using the FFT code. > I guess you know that tuneup only prints the values out. It doesn't > change the values in the relevant gmp-param.h. Yes, I update gmp-param.h each time and re-compile. How would you suggest people tune the parameters in Windows using Visual Studio since there doesn't seem to be a tune application, or is there? > As for MPIR 1.0.0, we can't wait either. Soon I hope... Should I be waiting for 1.0 before I use it for production code or if "make check" passes I should be good to go? > Thanks for your comments and timings. That sort of feedback encourages us. My pleasure. Jeff. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "mpir-devel" group. To post to this group, send email to mpir-devel@googlegroups.com To unsubscribe from this group, send email to mpir-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/mpir-devel?hl=en -~----------~----~----~----~------~----~------~--~---
