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Point out possible parallelism issues

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TiborGY 2018-10-21 13:36:47 +02:00 committed by GitHub
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@ -154,6 +154,12 @@ Please read `GotoBLAS_01Readme.txt`.
Statically link with `libopenblas.a` or dynamically link with `-lopenblas` if OpenBLAS was Statically link with `libopenblas.a` or dynamically link with `-lopenblas` if OpenBLAS was
compiled as a shared library. compiled as a shared library.
### Notes on parallelism
There are a number of compile time options that alter the way OpenBLAS handles parallelism.
Calling a BLAS or LAPACK subroutine from a multithreaded region requires some special consideration.
Please see the wiki page on parallelism for more details. <TODO>
### Setting the number of threads using environment variables ### Setting the number of threads using environment variables
Environment variables are used to specify a maximum number of threads. Environment variables are used to specify a maximum number of threads.