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| documentation:parallel [2016/09/11 22:07] – created Maurits W. Haverkort | documentation:parallel [2017/02/23 16:55] (current) – Maurits W. Haverkort | ||
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| + | {{indexmenu_n> | ||
| + | ====== Parallelization ====== | ||
| + | |||
| + | ### | ||
| + | Quanty (at least the linux version, the mac version will follow when xcode / clang starts to suport omp again) is a parallel code that can use many cores using a shared memory setup. In a bash shell you can tell the code how many thread it can use by setting the system variable OMP_NUM_THREADS before you run the code | ||
| + | ### | ||
| + | |||
| + | <code bash> | ||
| + | export OMP_NUM_THREADS=16 | ||
| + | </ | ||
| + | |||
| + | ### | ||
| + | That’s all. If you have the hardware all the suden your calculations are 16 times faster. | ||
| + | ### | ||
