CGAL users discussion list

[Ben Supnik <>]

Hi Y'all,

I am currently using

CGAL::Filtered_kernel<
        CGAL::Simple_cartesian<
                CGAL::Lazy_exact_nt<
                        CGAL::Quotient<
                                CGAL::MP_Float
> > > > >

As my kernel (I need exact constructions and predicates).  This has been 
the fastest kernel combo from the variants I tried.

But...my app (due to other code) has to be 32-bit and some of my 
datasets are right up on the edge of running out of memory.

Can anyone suggest a kernel that would also be exact for constructions 
but more space efficient?  And what kind of time penalty might I pay?

(I could run build two versions of my app - a "fast" and a "small" 
version...only a few of my input files can blow out memory.)

In particular, I am doing overlays of arrangements, which means that at 
the end I have 2x the amount of data that I really need.

cheers
Ben


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