CODEWITHSUNDEEP
c++openmpboost-threadboost-mutex
H'H
H'H

Reputation: 1680

OpenMP v.2.0 or Boost thread 1.59

I am wondering how I can parallelise for loop below in a secure way. I found some possible solution like this . However I am limited to use OpenMP version 2.0 and Boost version 1.59.

algorithm explanation:

It iterates over all of my triangles which lie within the bounding box, then it checks possibility of the intersection (with a unique triangle) in _considerTriangle function. Finally in the _considerTriangle, if a triangle is intersected it inserts triangle to a set container intersectedTri. 

//Iterating through every triangle
std::set<Triangle> intersectedTri;
for(IntersectedTrianglesIterator it=tree.Begin_IteratorByBoundingBox(bbox_min,bbox_max);it!=tree.End_IteratorByBoundingBox(bbox_min,bbox_max);++it)
            _ConsiderTriangle(it->GetTriangle());

I am wonderying how I can paralllise it safely.

Upvotes: 0

Views: 290

Answers (1)

Sven Nilsson
Sven Nilsson

Reputation: 1879

You can use any method, as long as you synchronize the insertion into intersectedTri.

// globals
boost::mutex mut;

// inside func
boost::mutex::scoped_lock lock(mut);
intersectedTri.insert(tri);

Upvotes: 0

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