Are MKL ScaLAPACK and BLACS Thread Safe?

[Nathan_Champagne]

I have not found any documentation specifically addressing whether or not the MKL ScaLAPACK and BLACS libraries are thread safe (OpenMP). I did find the following from here:

"In order to run ScaLAPACK multi threaded, you cannot use MKL or ACML since their ScaLAPACK routines are not thread-safe. "

Thanks,
Nathan

[Gennady_F_Intel · Accepted solution]

Nathan,

MKL is a thread-safe. There in only ?lacon routine which is not thread-safe. Please refer to see more details follow the link :

https://software.intel.com/content/www/us/en/develop/documentation/mkl-linux-developer-guide/top/managing-performance-and-memory/improving-performance-with-threading.html

[Gennady_F_Intel]

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