How about eMPIREe with Moller Patches versus eMPIREe without? Jason Worth Martin Asst. Professor of Mathematics http://www.math.jmu.edu/~martin
On Wed, Nov 5, 2008 at 11:40 AM, Bill Hart <[EMAIL PROTECTED]> wrote: > > Yep, I timed Magma and eMPIRe with Moller's patches doing integer > gcd's only on sage.math. Here is the table: > > Bit Size Magma eMPIRe > 2000000 1.500s 26.915s > 1000000 0.610s 5.794s > 500000 0.240s 1.440s > 250000 0.090s 0.312s > 100000 0.020s 0.040s > 50000 0.010s 0.012s > > Clearly the half-gcd is not working. > > Bill. > > 2008/11/5 Bill Hart <[EMAIL PROTECTED]>: >> I plotted the poly gcd graph out to a higher bit size and now Magma is >> clearly winning. >> >> The left most column is just integer GCD. Could it be that Magma >> improves on Moller's gcd patches (I think I recall reading somewhere >> that he originally wrote them for Magma), or did we do something wrong >> when merging them? >> >> http://sage.math.washington.edu/home/wbhart/flint-trunk/graphing/gcd8.png >> >> Bill. >> >> 2008/11/1 Bill Hart <[EMAIL PROTECTED]>: >>> Sorry, I simply mean you commit to the repo. I agree Mollers algorithm >>> is clever and it should be pointed out that his paper on the topic is >>> new work. He didn't just implement the half-BCD algorithm. >>> >>> Bill. >>> >>> On 01/11/2008, Jason Martin <[EMAIL PROTECTED]> wrote: >>>> >>>> Okay, I'll take a look at that when SVN is up again. >>>> >>>> Also, don't call them "Jason's Patches". That makes it sound like I >>>> was clever... I wasn't. It's Moller's code, and his algorithm is very >>>> very clever. >>>> >>>> --jason >>>> >>>> Jason Worth Martin >>>> Asst. Professor of Mathematics >>>> http://www.math.jmu.edu/~martin >>>> >>>> >>>> >>>> On Sat, Nov 1, 2008 at 9:55 AM, Bill Hart <[EMAIL PROTECTED]> >>>> wrote: >>>>> >>>>> Jason, first bug report. When I build mpir with your patches (I have >>>>> got the mpir repo working locally for me only - hopefully Michael will >>>>> help me with the apache export so everyone else can get access again), >>>>> I get warning messages in the compile on sage.math. >>>>> >>>>> gcd.c: In function 'mpz_rgcd': >>>>> gcd.c:167: warning: implicit declaration of function 'mpn_rgcd' >>>>> gcd.c: In function 'mpz_bgcd': >>>>> gcd.c:171: warning: implicit declaration of function 'mpn_bgcd' >>>>> gcd.c: In function 'mpz_sgcd': >>>>> gcd.c:175: warning: implicit declaration of function 'mpn_sgcd' >>>>> gcd.c: In function 'mpz_ngcd': >>>>> gcd.c:179: warning: implicit declaration of function 'mpn_ngcd' >>>>> >>>>> It seems to build ok otherwise. >>>>> >>>>> Bill. >>>>> >>>>> 2008/11/1 Jason Martin <[EMAIL PROTECTED]>: >>>>>> >>>>>> On Fri, Oct 31, 2008 at 9:11 PM, mabshoff >>>>>> <[EMAIL PROTECTED]> wrote: >>>>>>> [snip] >>>>>>> For me the highest priority item is the Moller's gcd code which has >>>>>>> already been merged. What is the status of the code, i.e. performance, >>>>>>> any known bugs, etc? >>>>>>> >>>>>>> Cheers, >>>>>>> >>>>>>> Michael >>>>>> >>>>>> Hi Michael, >>>>>> >>>>>> I haven't tested Moller's code beyond the standard make check test >>>>>> suite (which passes all tests). I also haven't done any speed tests >>>>>> other than the most rudimentary checks. So if anyone has some >>>>>> suggestions for test cases, I'd be happy to try them out. Likewise, >>>>>> if anyone has any bug reports for the gcd code, let me know and I'll >>>>>> attempt to figure it out. >>>>>> >>>>>> >>>>>> --jason >>>>>> >>>>>> > >>>>>> >>>>> >>>>> > >>>>> >>>> >>>> >>> >>>> >>> >> > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "mpir-devel" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/mpir-devel?hl=en -~----------~----~----~----~------~----~------~--~---
