CGAL users discussion list

[Mel M <>]

Hi,

I'm developing a program which uses CGAL - specifically the Polyhedron_3
object and the remeshing and intersection algorithms. It also uses MPI. When
in parallel, the domain and the polyhedral surfaces are split up spatially
into cuboids based on the Cartesian co-ordinates. I then run various CGAL
algorithms on each bit, and stitch them back together afterwards.

My problem is with locality - obviously if the algorithms are not local my
results will be dependent on how the domain is split up. Especially I'm
having trouble with remeshing the polyhedral surface on each core and then
stitching it back together afterwards, when there may have been vertices
added or removed on one side.

Has anyone done work using CGAL and MPI? How did you get the two to work
together? (I've read Parallel Multi-Core Geometric Algorithms in CGAL, but
it's not quite what I'm trying to do).



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