topic Are MKL ScaLAPACK and BLACS Thread Safe? in Intel® oneAPI Math Kernel Library

Are MKL ScaLAPACK and BLACS Thread Safe?

Nathan_Champagne — Sat, 07 Nov 2020 16:22:34 GMT

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

Re:Are MKL ScaLAPACK and BLACS Thread Safe?

Gennady_F_Intel — Tue, 10 Nov 2020 03:42:15 GMT

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

Re:Are MKL ScaLAPACK and BLACS Thread Safe?

Gennady_F_Intel — Tue, 10 Nov 2020 12:43:17 GMT

This issue has been resolved and we will no longer respond to this thread. If you require additional assistance from Intel, please start a new thread. Any further interaction in this thread will be considered community only.