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c++ Programming Glossary: aosStructure of arrays and array of structures - performance difference http://stackoverflow.com/questions/11616941/structure-of-arrays-and-array-of-structures-performance-difference up things and possibly autovectorize the loop I converted AoS to structure of arrays. Structure of Arrays class Unit public.. arrays. For 50 units SoA's update is slightly faster than AoS.But then from 100 units onwards SoA is slower than AoS. At 300.. AoS.But then from 100 units onwards SoA is slower than AoS. At 300 units SoA is almost twice as worse. At 100K units SoA..
Optimizing a CUDA kernel with irregular memory accesses http://stackoverflow.com/questions/20512257/optimizing-a-cuda-kernel-with-irregular-memory-accesses The Trove library is a CUDA C library with support for AoS support and likely gives close to optimal performance for random.. and likely gives close to optimal performance for random AoS access. From the GitHub page it looks like trove will get about..
Layout in memory of a struct. struct of arrays and array of structs in C/C++ http://stackoverflow.com/questions/8377667/layout-in-memory-of-a-struct-struct-of-arrays-and-array-of-structs-in-c-c the struct to 8 bytes. The difference between SoA and AoS would be like this SoA double double double pad int int.. double double pad int int int pad char char char AoS double int char pad double int char pad double int char.. pad double int char pad double int char Note that AoS pads within each struct. While SoA pads between the arrays...
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