CGAL users discussion list

["Laurent Rineau (CGAL/GeometryFactory)" <>]

On Thursday, September 5, 2019 2:33:34 PM CEST Yana Nehme wrote:

> AABB_Tree tree(orig_begin, orig_end, m_poly_original);
> tree.accelerate_distance_queries();
> 
> #pragma omp parallel for
> for (int i = 0; i < (int)num_vertices(m_poly_degrad); i++)
> {
>      Vertex_Descriptor vi(i);
> 
>     // computes closest point and primitive id
>      Point_and_primitive_id pp =
> tree.closest_point_and_primitive(get(pm_degrad, vi));
>      auto f_nearest = pp.second; // closest primitive id
> }
> 
> 
> However, the program crashes with a critical error detected c0000374.
> 
> Note that, I am using visual studio Express 2015 (openMp version 2.0) on
> Windows 10.
> 
> It is possible to parallize the function
> AABB_tree::closest_point_and_primitive()? How can I handle this kind of
> problem?

`AABB_tree::closest_point_and_primitive` is const, and you should be able to 
call it in parallel. Which CGAL version have you used?

-- 
Laurent Rineau, PhD
R&D Engineer at GeometryFactory           http://www.geometryfactory.com/
Release Manager of the CGAL Project       http://www.cgal.org/