Intel® Math Kernel Library (Intel® MKL) is a highly optimized, extensively threaded, and thread-safe library of mathematical functions for engineering, scientific, and financial applications that require maximum performance.
Intel MKL 2019 Update 5 packages are now ready for download.
Intel MKL is available as part of the Intel® Parallel Studio XE and Intel® System Studio. Please visit the Intel® Math Kernel Library Product Page.
Please see What's new in Intel MKL 2019 and in MKL 2019 Update 5 follow this link.
and here is the link to the MKL 2019 Bug Fix list
Following the instructions at https://software.intel.com/en-us/articles/installing-intel-free-libs-and-python-apt-repo fail. Specifically, the `apt-get update` step fails:
# apt-get update Get:1 https://apt.repos.intel.com/mkl all InRelease [4430 B] Err:1 https://apt.repos.intel.com/mkl all InRelease The following signatures were invalid: EXPKEYSIG 1A8497B11911E097 "CN = Intel(R) Software Development Products", O=Intel Corporation Hit:2 http://security.ubuntu.com/ubuntu bionic-security InRelease Hit:3 http://archive.ubuntu.com/ubuntu bionic InRelease Hit:4 http://archive.ubuntu.com/ubuntu bionic-updates InRelease Hit:5 http://archive.ubuntu.com/ubuntu bionic-backports InRelease Reading package lists... Done W: GPG error: https://apt.repos.intel.com/mkl all InRelease: The following signatures were invalid: EXPKEYSIG 1A8497B11911E097 "CN = Intel(R) Software Development Products", O=Intel Corporation E: The repository 'https://apt.repos.intel.com/mkl all InRelease' is not signed. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.