OpenBLAS Files

common:

• Fixed a miscompilation of the GETRF functions with CMAKE
• The size of the memory buffer used for splitting GEMM tasks across multiple threads can now be configured in the build system.
• Imported bugfix 390 from LAPACK (missing NaN propagation in xCOMBSSQ)

POWER:

• fixed several compilation problems related to endianness and ELF version support on POWER8 and POWER9.
• fixed misuse of the absolute value IAMIN/IAMAX in place of IMIN/IMAX
• fixed a race condition in the level3 blas code

MIPS64:

• fixed misuse of the absolute value IAMIN/IAMAX in place of IMIN/IMAX

ARMV7:

• fixed a race condition in the level3 blas code
• fixed a compilation problem on Android

ARMV8:

• Added support for Ampere EMAG8180
• Added support for Neoverse N1
• improved performance of the blas_lock function
• fixed a race condition in the level3 blas code
• Fixed a performance regression on TSV110 servers

x86_64:

• Fixed a long-standing error with undeclared register clobbers in the DSCAL microkernel for Haswell,SkylakeX and Zen exposed by gcc9.2
• Fixed a long-standing bug in the SSE implementation of the IAMAX functions
• Fixed a cmake build failure with DYNAMIC_ARCH on x86_64
• Fixed an oversight in the cpu detection code for Intel Goldmont+, Cannon Lake and Ice Lake
• Fixed compile failure on OSX when the compiler name contains a dash (e.g. gcc-9)
• Fixed compilation with MinGW on SkylakeX
• Improved speed of the AVX512 GEMM3M code, added an AVX512 kernel for STRMM and improved performance of the AVX2 GEMM kernels

IBM Z:

• fixed compilation of the DYNAMIC_ARCH code