OpenBLAS/Changelog.txt

OpenBLAS ChangeLog
====================================================================
Version 0.2.6
2-Mar-2013
common:
	* Improved OpenMP performance slightly. (d744c9)
	* Improved cblas.h compatibility with Intel MKL.(#185)
	* Fixed the overflowing bug in single thread cholesky factorization.
	* Fixed the overflowing buffer bug of multithreading hbmv and sbmv.(#174)

x86/x86-64:
	* Added AMD Bulldozer x86-64 S/DGEMM AVX kernels. (Thank Werner Saar)
	  We will tune the performance in future.
	* Auto-detect Intel Xeon E7540.
	* Fixed the overflowing buffer bug of gemv. (#173)
	* Fixed the bug of s/cdot about invalid reading NAN on x86_64. (#189)

MIPS64:

====================================================================
Version 0.2.5
26-Nov-2012
common:
	* Added NO_SHARED flag to disable generating the shared library.
	* Compile LAPACKE with ILP64 modle when INTERFACE64=1 (#158)
	* Export LAPACK 3.4.2 symbols in shared library. (#147)
	* Only detect the number of physical CPU cores on Mac OSX. (#157)
	* Fixed NetBSD build. (#155)
	* Fixed compilation with TARGET=GENERIC. (#160)
x86/x86-64:
	* Restore the original CPU affinity when calling 
	  openblas_set_num_threads(1) (#153)
	* Fixed a SEGFAULT bug in dgemv_t when m is very large.(#154)
MIPS64:

====================================================================
Version 0.2.4
8-Oct-2012
common:
	* Upgraded LAPACK to 3.4.2 version. (#145)
	* Provided support for passing CFLAGS, FFLAGS, PFLAGS, 
	  FPFLAGS to make. (#137)
	* f77blas.h:compatibility for compilers without C99 complex 
	  number support. (#141)
x86/x86-64:
	* Added NO_AVX flag. Check OS supporting AVX on runtime. (#139)
	* Fixed zdot incompatibility ABI issue with GCC 4.7 on 
	  Windows 32-bit. (#140)
MIPS64:
	* Fixed the generation of shared library bug.
	* Fixed the detection bug on the Loongson 3A server.
====================================================================
Version 0.2.3
20-Aug-2012
common:
	* Fixed LAPACK unstable bug about ?laswp. (#130)
	* Fixed the shared library bug about unloading the library on 
	  Linux (#132).
	* Fixed the compilation failure on BlueGene/P (TARGET=PPC440FP2)
	  Please use gcc and IBM xlf. (#134)
x86/x86-64:
	* Supported goto_set_num_threads and openblas_set_num_threads 
	  APIs in Windows. They can set the number of threads on runtime.
	  
====================================================================
Version 0.2.2
6-July-2012
common:
	* Fixed exporting DLL functions bug on Windows/MingW
	* Support GNU Hurd (Thank Sylvestre Ledru)
	* Support kfreebsd kernel (Thank Sylvestre Ledru)
x86/x86-64:
	* Support Intel Sandy Bridge 22nm desktop/mobile CPU
SPARC:
	* Improve the detection of SPARC (Thank Sylvestre Ledru)

====================================================================
Version 0.2.1
30-Jun-2012
common:
x86/x86-64:
	* Fixed the SEGFAULT bug about hyper-theading
	* Support AMD Bulldozer by using GotoBLAS2 AMD Barcelona codes

====================================================================
Version 0.2.0
26-Jun-2012
common:
	* Removed the limitation (64) of numbers of CPU cores.
	  Now, it supports 256 cores at max.
	* Supported clang compiler.
	* Fixed some build bugs on FreeBSD
x86/x86-64:
	* Optimized Level-3 BLAS on Intel Sandy Bridge x86-64 by AVX instructions.
	  Please use gcc >= 4.6 or clang >=3.1.
	* Support AMD Bobcat by using GotoBLAS2 AMD Barcelona codes.

====================================================================
Version 0.1.1
29-Apr-2012
common:
	* Upgraded LAPACK to 3.4.1 version. (Thank Zaheer Chothia)
	* Supported LAPACKE, a C interface to LAPACKE. (Thank Zaheer Chothia)
	* Fixed the build bug (MD5 and download) on Mac OSX.
	* Auto download CUnit 2.1.2-2 from SF.net with UTEST_CHECK=1.
	* Fxied the compatibility issue for compilers without C99 complex number
	  (e.g. Visual Studio)
x86/x86_64:
	* Auto-detect Intel Sandy Bridge Core i7-3xxx & Xeon E7 Westmere-EX.
	* Test alpha=Nan in dscale.
	* Fixed a SEGFAULT bug in samax on x86 windows.
	
====================================================================
Version 0.1.0
23-Mar-2012
common:
	* Set soname of shared library on Linux.
	* Added LIBNAMESUFFIX flag in Makefile.rule. The user can use 
	  this flag to control the library name, e.g. libopenblas.a, 
	  libopenblas_ifort.a or libopenblas_omp.a.
	* Added GEMM_MULTITHREAD_THRESHOLD flag in Makefile.rule.
	  The lib use single thread in GEMM function with small matrices.
x86/x86_64:
	* Used GEMV SSE/SSE2 kernels on x86 32-bit.
	* Exported CBLAS functions in Windows DLL.
MIPS64:
	* Completed Level-3 BLAS optimization on Loongson 3A CPU.
	* Improved GEMV performance on Loongson 3A CPU.
	* Improved Level-3 BLAS performance on Loongson 3B CPU. (EXPERIMENT)

====================================================================
Version 0.1 alpha2.5
19-Feb-2012
common:
	* Fixed missing "#include <sched.h>" bug on Mac OS X.
	  Thank Mike Nolta for the patch.
	* Upgraded LAPACK to 3.4.0 version
	* Fixed a bug on Mac OS X. Don't require SystemStubs on OS X.
	  SystemStubs does not exist on Lion. Thank Stefan Karpinski.
	* Improved README with using OpenMP. Check the internal threads
	  count less than or equal to omp_get_max_threads()
x86/x86_64:
	* Auto-detect Intel Core i6/i7 (Sandy Bridge) CPU with Nehalem assembly kernels
	* Fixed some bugs on MingW 64-bit including zgemv, cdot, zdot.

====================================================================
Version 0.1 alpha2.4
18-Sep-2011
common:
	* Fixed a bug about installation. The header file "fblas77.h" 
	  works fine now.
	* Fixed #61 a building bug about setting TARGET and DYNAMIC_ARCH.
	* Try to handle absolute path of shared library in OSX. (#57)
	  Thank Dr Kane O'Donnell.
	* Changed the installation folder layout to $(PREFIX)/include and
	  $(PREFIX)/lib

x86/x86_64:
	* Fixed #58 zdot/xdot SEGFAULT bug with GCC-4.6 on x86. According 
	  to i386 calling convention, The callee should remove the first 
	  hidden parameter.Thank Mr. John for this patch. 

====================================================================
Version 0.1 alpha2.3
5-Sep-2011

x86/x86_64:
	*  Added DTB_ENTRIES into dynamic arch setting parameters. Now, 
	   it can read DTB_ENTRIES on runtime. (Refs issue #55 on github)

====================================================================
Version 0.1 alpha2.2
14-Jul-2011

common:
	* Fixed a building bug when DYNAMIC_ARCH=1 & INTERFACE64=1. 
	  (Refs issue #44 on github)

====================================================================
Version 0.1 alpha2.1
28-Jun-2011

common:
	* Stop the build and output the error message when detecting 
	  fortran compiler failed. (Refs issue #42 on github)

====================================================================
Version 0.1 alpha2
23-Jun-2011

common:
	* Fixed blasint undefined bug in <cblas.h> file. Other software 
	  could include this header successfully(Refs issue #13 on github)
	* Fixed the SEGFAULT bug on 64 cores. On SMP server, the number 
	  of CPUs or cores should be less than or equal to 64.(Refs issue #14 
	  on github)
	* Support "void goto_set_num_threads(int num_threads)" and "void
	  openblas_set_num_threads(int num_threads)" when USE_OPENMP=1
	* Added extern "C" to support C++. Thank Tasio for the patch(Refs 
	  issue #21 on github)
	* Provided an error message when the arch is not supported.(Refs 
	  issue #19 on github)
	* Fixed issue #23. Fixed a bug of f_check script about generating link flags.
	* Added openblas_set_num_threads for Fortran.
	* Fixed #25 a wrong result of rotmg.
	* Fixed a bug about detecting underscore prefix in c_check.
	* Print the wall time (cycles) with enabling FUNCTION_PROFILE
	* Fixed #35 a build bug with NO_LAPACK=1 & DYNAMIC_ARCH=1
	* Added install target. You can use "make install". (Refs #20)


x86/x86_64:
	* Fixed #28 a wrong result of dsdot on x86_64.
	* Fixed #32 a SEGFAULT bug of zdotc with gcc-4.6.
	* Fixed #33 ztrmm bug on Nehalem.
	* Walk round #27 the low performance axpy issue with small imput size & multithreads.

MIPS64:
	* Fixed #28 a wrong result of dsdot on Loongson3A/MIPS64. 
	* Optimized single/double precision BLAS Level3 on Loongson3A/MIPS64. (Refs #2)
	* Optimized single/double precision axpy function on Loongson3A/MIPS64. (Refs #3)

====================================================================
Version 0.1 alpha1
20-Mar-2011

common:
	* Support "make  NO_LAPACK=1" to build the library without 
	  LAPACK functions.
	* Fixed randomly SEGFAULT when nodemask==NULL with above Linux 2.6.34. 
	  Thank Mr.Ei-ji Nakama providing this patch. (Refs issue #12 on github)
	* Added DEBUG=1 rule in Makefile.rule to build debug version.
	* Disable compiling quad precision in reference BLAS library(netlib BLAS).
	* Added unit testcases in utest/ subdir. Used  CUnit framework.
	* Supported OPENBLAS_* & GOTO_* environment variables (Pleas see README)
	* Imported GotoBLAS2 1.13 BSD version

x86/x86_64:
	* On x86 32bits, fixed a bug in zdot_sse2.S line 191. This would casue 
	  zdotu & zdotc failures.Instead,Walk around it. (Refs issue #8 #9 on github)
	* Modified ?axpy functions to return same netlib BLAS results 
	  when incx==0 or incy==0 (Refs issue #7 on github)
	* Modified ?swap functions to return same netlib BLAS results 
	  when incx==0 or incy==0 (Refs issue #6 on github)
	* Modified ?rot functions to return same netlib BLAS results 
	  when incx==0 or incy==0 (Refs issue #4 on github)
	* Detect Intel Westmere,Intel Clarkdale and Intel Arrandale 
	  to use Nehalem codes.
	* Fixed a typo bug about compiling dynamic ARCH library.
MIPS64:
	* Improve daxpy performance on ICT Loongson 3A.
	* Supported ICT Loongson 3A CPU (Refs issue #1 on github)
====================================================================