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| author | Stan Seibert <stan@mtrr.org> | 2012-02-17 18:26:41 -0500 |
|---|---|---|
| committer | tlatorre <tlatorre@uchicago.edu> | 2021-05-09 08:42:38 -0700 |
| commit | cc386a0dbad610f4c2ed6a79ed1cfc2af57aade3 (patch) | |
| tree | 017fb4cc93f526dfc61951f282fb9f26526fd478 /test/test_bvh_simple.py | |
| parent | e2bf16de5d94a7b438e9c1af52f0bb4dc632b35f (diff) | |
| download | chroma-cc386a0dbad610f4c2ed6a79ed1cfc2af57aade3.tar.gz chroma-cc386a0dbad610f4c2ed6a79ed1cfc2af57aade3.tar.bz2 chroma-cc386a0dbad610f4c2ed6a79ed1cfc2af57aade3.zip | |
Add an argsort_direction() function to chroma.tools and use it to
group photons so that they take similar paths on the GPU.
argsort_direction() morton-orders an array of normalized direction
vectors according to their spherical coordinates. Photons sorted in
this way tend to follow similar paths through a detector geometry,
which enhances cache locality. As a result, get_node() uses the GPU
L1 cache again, with good results.
Diffstat (limited to 'test/test_bvh_simple.py')
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