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Update with 0.3.7 changes

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Martin Kroeker 2019-08-11 23:23:27 +02:00 committed by GitHub
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OpenBLAS ChangeLog
====================================================================
Version 0.3.7
11-Aug 2019
common:
* having the gmake special variables TARGET_ARCH or TARGET_MACH
defined no longer causes build failures in ctest or utest
* defining NO_AFFINITY or USE_TLS to 0 in gmake builds no longer
has the same effect as setting them to 1
* a new test program was added to allow checking the library for
thread safety
* a new option USE_LOCKING was added to ensure thread safety when
OpenBLAS itself is built without multithreading but will be
called from multiple threads.
* a build failure on Linux with glibc versions earlier than 2.5
was fixed
* a runtime error with CPU enumeration (and NO_AFFINITY not set)
on glibc 2.6 was fixed
* NO_AFFINITY was added to the CMAKE options (and defaults to being
active on Linux, as in the gmake builds)
x86_64:
* the build-time logic for detection of AVX512 availability in
the processor and compiler was fixed
* gmake builds on OSX now set the internal name of the library to
libopenblas.0.dylib (consistent with CMAKE)
* the Haswell DGEMM kernel received a significant speedup through
improved prefetch and load instructions
* performance of DGEMM, DTRMM, DTRSM and ZDOT on Zen/Zen2 was markedly
increased by avoiding vpermpd instructions
* the SKYLAKEX (AVX512) DGEMM helper functions have now been disabled
to fix remaining errors in DGEMM, DSYMM and DTRMM
## POWER:
* added support for building on FreeBSD/powerpc64 and FreeBSD/ppc970
* added optimized kernels for POWER9 single and double precision complex BLAS3
* added optimized kernels for POWER9 SGEMM and STRMM
## ARMV7:
* fixed the softfp implementations of xAMAX and IxAMAX
* removed the predefined -march= flags on both ARMV5 and ARMV6 as
they were appropriate for only a subset of platforms
====================================================================
Version 0.3.6
29-Apr-2019