Ok I'll give it a go. Perhaps it'll turn up something stupid that I did. Bill.
2008/11/5 Jason Martin <[EMAIL PROTECTED]>: > > 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 mpir-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/mpir-devel?hl=en -~----------~----~----~----~------~----~------~--~---
