[GiNaC-list] [sage-devel] Re: GiNaC as the symbolic manipulation engine in Sage

[Burcin Erocal]

On Mon, 11 Aug 2008 12:45:36 +0200
Burcin Erocal <burcin at erocal.org> wrote:

> 
> On Mon, 11 Aug 2008 11:39:42 +0200
> Jens Vollinga <jensv at nikhef.nl> wrote:
> 
> > Hi from GiNaC side,
> > 
> > just some short comments:
> > 
> > Burcin Erocal schrieb:
> > > - It takes ages to build
> > > 	The packages above took ~25 minutes to build on my desktop
> > > machine (15 for cln, 9 for ginac)
> > 
> > Did you configure with the --disable-static option? Otherwise your build 
> > time is just twice the usual time (looks like it).
> 
> I didn't do anything to try to make these times better. I was more
> concerned with benchmarking speed of basic manipulations, and thought
> that these problems can be solved easily later.
> 
> Your suggestion reduces the compilation time of ginac to 5 minutes.
> Looks like we're already below William's 8 minute limit. Now can we fix
> the cln problem? :)

Using the --disable-static option while configuring cln brings down its
build&install time to 9 minutes.

One thing that remains in favor of cln is that it uses memory pools.
This would be hard to do with a simple rewrite. I don't know how much
this effects performance though.

Burcin