[sage-devel] Re: two sage devel projects

2007-02-06 Thread William Stein
On Tue, 06 Feb 2007 12:01:51 -0700, didier deshommes <[EMAIL PROTECTED]> wrote: > On 2/6/07, William Stein <[EMAIL PROTECTED]> wrote: >> HI. I applied your patch, built quaddouble-2.2, and did every single >> optimization I could think of. Much to my *surprise*, MPFR at 212-bits >> precision sol

[sage-devel] Re: two sage devel projects

2007-02-06 Thread didier deshommes
On 2/6/07, William Stein <[EMAIL PROTECTED]> wrote: > HI. I applied your patch, built quaddouble-2.2, and did every single > optimization I could think of. Much to my *surprise*, MPFR at 212-bits > precision solidly beats quaddouble-2.2. It's not Python overheard, > since in multiplication this

[sage-devel] Re: two sage devel projects

2007-02-06 Thread William Stein
On Tue, 06 Feb 2007 06:02:00 -0700, David Harvey <[EMAIL PROTECTED]> wrote: > You might be giving MPFR an unfair advantage by computing a square. I tried the same benchmark but instead computing a*b with a != b, and it makes no noticeable difference in both cases. Sigh. > The MPFR multiplicati

[sage-devel] Re: two sage devel projects

2007-02-06 Thread David Harvey
On Feb 6, 2007, at 2:35 AM, William Stein wrote: > All timings are on a Mac OS X Intel core2duo 2.33Ghz laptop. > > {{{ > a = QDRF(920380238409283408203948092384092348) > }}} > > {{{ > %time > for i in range(10^5): > b = a*a > /// > CPU time: 0.18 s, Wall time: 0.19 s > }}} > > {{{ > a = R

[sage-devel] Re: two sage devel projects

2007-02-05 Thread William Stein
On Sat, 03 Feb 2007 20:05:12 -0700, didier deshommes <[EMAIL PROTECTED]> wrote: > FYI, if that wasn't clear before, I'm taking over this project :) . > Yozo Hida just released another version of qd and an spkg is available > here: > http://sage.math.washington.edu/home/dfdeshom/custom/sage-2.0/spk

[sage-devel] Re: two sage devel projects

2007-02-03 Thread didier deshommes
> > The little work I did on the wrapper did build correctly on my x86 machine. > > didier > FYI, if that wasn't clear before, I'm taking over this project :) . Yozo Hida just released another version of qd and an spkg is available here: http://sage.math.washington.edu/home/dfdeshom/custom/sage-2

[sage-devel] Re: two sage devel projects

2007-01-31 Thread didier deshommes
On 1/30/07, William Stein <[EMAIL PROTECTED]> wrote: > > Hi, > > Is anybody interested in doing either of these SAGE devel projects? > > 1. Create QDRF -- quad double real field > > http://sage.math.washington.edu:9002/sage_trac/ticket/233 > > This would be like the RealDoubleField in rings/r