forked from OpenMathLib/OpenBLAS
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Changelog.txt
936 lines (811 loc) · 35.5 KB
/
Changelog.txt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
OpenBLAS ChangeLog
====================================================================
Version 0.3.6
29-Apr-2019
common:
* the build tools now check that a given cpu TARGET is actually valid
* the build-time check of system features (c_check) has been made
less dependent on particular perl features (this should mainly
benefit building on Windows)
* several problem with the ReLAPACK integration were fixed,
including INTERFACE64 support and building a shared library
* building with CMAKE on BSD systems was improved
* a non-absolute SUM function was added based on the
existing optimized code for ASUM
* CBLAS interfaces to the IxMIN and IxMAX functions were added
* a name clash between LAPACKE and BOOST headers was resolved
* CMAKE builds with OpenMP failed to include the appropriate getrf_parallel
kernels
* a crash on thread (key) deletion with the USE_TLS=1 memory management
option was fixed
* restored several earlier fixes, in particular for OpenMP performance,
building on BSD, and calling fork on CYGWIN, which had inadvertently
been dropped in the 0.3.3 rewrite of the memory management code.
x86_64:
* the AVX512 DGEMM kernel has been disabled again due to unsolved problems
* building with old versions of MSVC was fixed
* it is now possible to build a static library on Windows with CMAKE
* accessing environment variables on CYGWIN at run time was fixed
* the CMAKE build system now recognizes 32bit userspace on 64bit hardware
* Intel "Denverton" atom and Hygon "Dhyana" zen CPUs are now autodetected
* building for DYNAMIC_ARCH with a DYNAMIC_LIST of targets is now supported
with CMAKE as well
* building for DYNAMIC_ARCH with GENERIC as the default target is now supported
* a buffer overflow in the SSE GEMM kernel for Intel Nano targets was fixed
* assembly bugs involving undeclared modification of input operands were fixed
in the AXPY, DOT, GEMV, GER, SCAL, SYMV and TRSM microkernels for Nehalem,
Sandybridge, Haswell, Bulldozer and Piledriver. These would typically cause
test failures or segfaults when compiled with recent versions of gcc from 8 onward.
* a similar bug was fixed in the blas_quickdivide code used to split workloads
in most functions
* a bug in the IxMIN implementation for the GENERIC target made it return the result of IxMAX
* fixed building on SkylakeX systems when either the compiler or the (emulated) operating
environment does not support AVX512
* improved GEMM performance on ZEN targets
x86:
* build failures caused by the recently added checks for AVX512 were fixed
* an inline assembly bug involving undeclared modification of an input argument was
fixed in the blas_quickdivide code used to split workloads in most functions
* a bug in the IMIN implementation for the GENERIC target made it return the result of IMAX
MIPS32:
* a bug in the IMIN implementation made it return the result of IMAX
POWER:
* single precision BLAS1/2 functions have received optimized POWER8 kernels
* POWER9 is now a separate target, with an optimized DGEMM/DTRMM kernel
* building on PPC970 systems under OSX Leopard or Tiger is now supported
* out-of-bounds memory accesses in the gemm_beta microkernels were fixed
* building a shared library on AIX is now supported for POWER6
* DYNAMIC_ARCH support has been added for POWER6 and newer
ARMv7:
* corrected xDOT behaviour with zero INC_X or INC_Y
* a bug in the IMIN implementation made it return the result of IMAX
ARMv8:
* added support for HiSilicon TSV110 cpus
* the CMAKE build system now recognizes 32bit userspace on 64bit hardware
* cross-compilation with CMAKE now works again
* a bug in the IMIN implementation made it return the result of IMAX
* ARMV8 builds with the BINARY=32 option are now automatically handled as ARMV7
IBM Z:
* optimized microkernels for single precicion BLAS1/2 functions have been added
for both Z13 and Z14
====================================================================
Version 0.3.5
31-Dec-2018
common:
* loop unrolling in TRMV has been enabled again.
* A domain error in the thread workload distribution for SYRK
has been fixed.
* gmake builds will now automatically add -fPIC to the build
options if the platform requires it.
* a pthreads key leakage (and associate crash on dlclose) in
the USE_TLS codepath was fixed.
* building of the utest cases on systems that do not provide
an implementation of complex.h was fixed.
x86_64:
* the SkylakeX code was changed to compile on OSX.
* unwanted application of the -march=skylake-avx512 option
to the common code parts of a DYNAMIC_ARCH build was fixed.
* improved performance of SGEMM for small workloads on Skylake X.
* performance of SGEMM and DGEMM was improved on Haswell.
ARMV8:
* a configuration error that broke the CNRM2 kernel was corrected.
* compilation of the GEMM kernels with CMAKE was fixed.
* DYNAMIC_ARCH builds are now available with CMAKE as well.
* using CMAKE for cross-compilation to the new cpu TARGETs
introduced in 0.3.4 now works.
POWER:
* a problem in cpu autodetection for AIX has been corrected.
====================================================================
Version 0.3.4
02-Dec-2018
common:
* the new, experimental thread-local memory allocation had
inadvertently been left enabled for gmake builds in 0.3.3
despite the announcement. It is now disabled by default, and
single-threaded builds will keep using the old allocator even
if the USE_TLS option is turned on.
* OpenBLAS will now provide enough buffer space for at least 50
threads by default.
* The output of openblas_get_config() now contains the version
number.
* A serious thread safety bug in GEMV operation with small M and
large N size has been fixed.
* The code will now automatically call blas_thread_init after a
fork if needed before handling a call to openblas_set_num_threads
* Accesses to parallelized level3 functions from multiple callers
are now serialized to avoid thread races (unless using OpenMP).
This should provide better performance than the known-threadsafe
(but non-default) USE_SIMPLE_THREADED_LEVEL3 option.
* When building LAPACK with gfortran, -frecursive is now (again)
enabled by default to ensure correct behaviour.
* The OpenBLAS version cblas.h now supports both CBLAS_ORDER and
CBLAS_LAYOUT as the name of the matrix row/column order option.
* Externally set LDFLAGS are now passed through to the final compile/link
steps to facilitate setting platform-specific linker flags.
* A potential race condition during the build of LAPACK (that would
usually manifest itself as a failure to build TESTING/MATGEN) has been
fixed.
* xHEMV has been changed to stay single-threaded for small input sizes
where the overhead of multithreading exceeds any possible gains
* CSWAP and ZSWAP have been limited to a single thread except on ARMV8 or
ThunderX hardware with sizable input.
* Linker flags for the PGI compiler have been updated
* Behaviour of AXPY with zero increments is now handled in the C interface,
correcting the result on at least Intel Atom.
* The result matrix from calling SGELSS with an all-zero input matrix is
now zeroed completely.
x86_64:
* Autodetection of AMD Ryzen2 has been fixed (again).
* CMAKE builds now support labeling of an INTERFACE64=1 build of
the library with the _64 suffix.
* AVX512 version of DGEMM has been added and the AVX512 SGEMM kernel
has been sped up by rewriting with C intrinsics
* Fixed compilation on RHEL5/CENTOS5 (issue with typename __WAIT_STATUS)
POWER:
* added support for building on AIX (with gcc and GNU tools from AIX Toolbox).
* CPU type detection has been implemented for AIX.
* CPU type detection has been fixed for NETBSD.
MIPS64:
* AXPY on LOONGSON3A has been corrected to pass "zero increment" utest.
* DSDOT on LOONGSON3A has been fixed.
* the SGEMM microkernel has been hardened against potential data loss.
ARMV8:
* DYNAMic_ARCH support is now available for 64bit ARM
* cross-compiling for ARMV8 under iOS now works.
* cpu-specific code has been rearranged to make better use of both
hardware commonalities and model-specific compiler optimizations.
* XGENE1 has been removed as a TARGET, superseded by the improved generic
ARMV8 support.
ARMV7:
* Older assembly mnemonics have been converted to UAL form to allow
building with clang 7.0
* Cross compiling LAPACKE for Android has been fixed again (broken by
update to LAPACK 3.7.0 some while ago).
====================================================================
Version 0.3.3
31-Aug-2018
common:
* thread memory allocation has been switched back to the method
used before version 0.3.1 due to unexpected problems caused by
the new code under some circumstances. A new compile-time option
USE_TLS has been added to enable the new code, and it is hoped
that this can become the default again in the next version.
* LAPAck PR272 has been integrated, which fixes spurious errors
in DSYEVR and related functions caused by missing conversion
from ILAENV to ILAENV_2STAGE in several _2stage routines.
* the cmake-generated OpenBLASConfig.cmake now uses correct case
for the name of the library
* added support for Haiku OS
x86_64:
* added AVX512 implementations of SDOT, DDOT, SAXPY, DAXPY,
DSCAL, DGEMVN and DSYMVL
* added a workaround for a cygwin issue that prevented compilation
of AVX512 code
IBM Z:
* added autodetection of Z14
* fixed TRMM errors in the generic target
====================================================================
Version 0.3.2
30-Jul-2018
common:
* fixes for regressions caused by the rewrite of the thread
initialization code in 0.3.1
POWER:
* fixed cpu autodetection for the BSDs
MIPS64:
* fixed utest errors in AXPY, DSDOT, ROT and SWAP
x86_64:
* added autodetection of AMD Ryzen 2
* fixed build with older versions of MSVC
====================================================================
Version 0.3.1
01-Jul-2018
common:
* rewritten thread initialization code with significantly reduced overhead
* added CBLAS interfaces to the IxAMIN BLAS extension functions
* fixed the lapack-test target
* CMAKE builds now create an OpenBLASConfig.cmake file
* ZAXPY now uses a single thread for small input sizes
* the LAPACK code was updated from Reference-LAPACK/lapack#253
(fixing LAPACKE interfaces to Aasen's functions)
POWER:
* corrected CROT and ZROT behaviour with zero INC_X
ARMV7:
* corrected xDOT behaviour with zero INC_X or INC_Y
x86_64:
* retired some older targets of DYNAMIC_ARCH builds to a new option DYNAMIC_OLDER,
this affects PENRYN,DUNNINGTON,OPTERON,OPTERON_SSE3,BOBCAT,ATOM and NANO
(which will still be supported via the slower PRESCOTT kernels when this option is not set)
* added an option DYNAMIC_LIST that (used in conjunction with DYNAMIC_ARCH) allows to
specify the list of x86_64 targets to include. Any target not on the list will be supported
by the Sandybridge or Nehalem kernels if available, or by Prescott.
* improved SWITCH_RATIO on Haswell for increased GEMM throughput
* added initial support for Intel Skylake X, including an AVX512 SGEMM kernel
* added autodetection of Intel Cannon Lake series as Skylake X
* added a default L2 cache size for hypervisors that return zero here (Chromebook)
* fixed a name clash with recent Windows10 headers that broke the build with (at least)
recent mingw from MSYS2
* fixed a link error in mixed clang/gfortran builds with OpenMP
* updated the OSX deployment target to 10.8
* switched on parallel make for builds on MS Windows by default
x86:
* fixed SSWAP and DSWAP behaviour with zero INC_X and INC_Y
====================================================================
Version 0.3.0
23-May-2108
common:
* fixed some more thread race and locking bugs
* added preliminary support for calling an OpenMP build of the library from multiple threads
* removed performance impact of thread locks added in 0.2.20 on OpenMP code
* general code cleanup
* optimized DSDOT implementation
* improved thread distribution for GEMM
* corrected IMATCOPY/OMATCOPY implementation
* fixed out-of-bounds accesses in the multithreaded xBMV/xPMV and SYMV implementations
* cmake build improvements
* pkgconfig file now contains build options
* openblas_get_config() now reports USE_OPENMP and NUM_THREADS settings used for the build
* corrections and improvements for systems with more than 64 cpus
* LAPACK code updated to 3.8.0 including later fixes
* added ReLAPACK, a recursive implementation of several LAPACK functions
* Rewrote ROTMG to handle cases that the netlib code failed to address
* Disabled (broken) multithreading code for xTRMV
* corrected prototypes of complex CBLAS functions to make our cblas.h match the generally accepted standard
* shared memory access failures on startup are now handled more gracefully
* restored utests from earlier releases (and made them pass on all affected systems)
SPARC:
* several fixes for cpu autodetection
POWER:
* corrected vector register overwriting in several Power8 kernels
* optimized additional BLAS functions
ARM:
* added support for CortexA53 and A72
* added autodetection for ThunderX2T99
* made most optimized kernels the default for generic ARMv8 targets
x86_64:
* parallelized DDOT kernel for Haswell
* changed alignment directives in assembly kernels to boost performance on OSX
* fixed register handling in the GEMV microkernels (bug exposed by gcc7)
* added support for building on OpenBSD and Dragonfly
* updated compiler options to work with Intel release 2018
* support fully optimized build with clang/flang on Microsoft Windows
* fixed building on AIX
IBM Z:
* added optimized BLAS 1/2 functions
MIPS:
* fixed cpu autodetection helper code
* added mips32 1004K cpu (Mediatek MT7621 and similar SoC)
* added mips64 I6500 cpu
====================================================================
Version 0.2.20
24-Jul-2017
common:
* Improved CMake support
* Fixed several thread race and locking bugs
* Fixed default LAPACK optimization level
* Updated LAPACK to 3.7.0
* Added ReLAPACK (https://github.com/HPAC/ReLAPACK, make BUILD_RELAPACK=1)
POWER:
* Optimizations for Power9
* Fixed several Power8 assembly bugs
ARM:
* New optimized Vulcan and ThunderX2T99 targets
* Support for ARMV7 SOFT_FP ABI (make ARM_SOFTFP_ABI=1)
* Detect all cpu cores including offline ones
* Fix compilation with CLANG
* Support building a shared library for Android
MIPS:
* Fixed several threading issues
* Fix compilation with CLANG
x86_64:
* Detect Intel Bay Trail and Apollo Lake
* Detect Intel Sky Lake and Kaby Lake
* Detect Intel Knights Landing
* Detect AMD A8, A10, A12 and Ryzen
* Support 64bit builds with Visual Studio
* Fix building with Intel and PGI compilers
* Fix building with MINGW and TDM-GCC
* Fix cmake builds for Haswell and related cpus
* Fix building for Sandybridge with CLANG 3.9
* Add support for the FLANG compiler
IBM Z:
* New target z13 with BLAS3 optimizations
====================================================================
Version 0.2.19
1-Sep-2016
common:
* Improved cross compiling.
* Fix the bug on musl libc.
POWER:
* Optimize BLAS on Power8
* Fixed Julia+OpenBLAS bugs on Power8
MIPS:
* Optimize BLAS on MIPS P5600 and I6400 (Thanks, Shivraj Patil, Kaustubh Raste)
ARM:
* Improved on ARM Cortex-A57. (Thanks, Ashwin Sekhar T K)
====================================================================
Version 0.2.18
12-Apr-2016
common:
* If you set MAKE_NB_JOBS flag less or equal than zero,
make will be without -j.
x86/x86_64:
* Support building Visual Studio static library. (#813, Thanks, theoractice)
* Fix bugs to pass buidbot CI tests (http://build.openblas.net)
ARM:
* Provide DGEMM 8x4 kernel for Cortex-A57 (Thanks, Ashwin Sekhar T K)
POWER:
* Optimize S and C BLAS3 on Power8
* Optimize BLAS2/1 on Power8
====================================================================
Version 0.2.17
20-Mar-2016
common:
* Enable BUILD_LAPACK_DEPRECATED=1 by default.
====================================================================
Version 0.2.16
15-Mar-2016
common:
* Avoid potential getenv segfault. (#716)
* Import LAPACK svn bugfix #142-#147,#150-#155
x86/x86_64:
* Optimize c/zgemv for AMD Bulldozer, Piledriver, Steamroller
* Fix bug with scipy linalg test.
ARM:
* Improve DGEMM for ARM Cortex-A57. (Thanks, Ashwin Sekhar T K)
POWER:
* Optimize D and Z BLAS3 functions for Power8.
====================================================================
Version 0.2.16.rc1
23-Feb-2016
common:
* Upgrade LAPACK to 3.6.0 version.
Add BUILD_LAPACK_DEPRECATED option in Makefile.rule to build
LAPACK deprecated functions.
* Add MAKE_NB_JOBS option in Makefile.
Force number of make jobs.This is particularly
useful when using distcc. (#735. Thanks, Jerome Robert.)
* Redesign unit test. Run unit/regression test at every build (Travis-CI and Appveyor).
* Disable multi-threading for small size swap and ger. (#744. Thanks, Jerome Robert)
* Improve small zger, zgemv, ztrmv using stack alloction (#727. Thanks, Jerome Robert)
* Let openblas_get_num_threads return the number of active threads.
(#760. Thanks, Jerome Robert)
* Support illumos(OmniOS). (#749. Thanks, Lauri Tirkkonen)
* Fix LAPACK Dormbr, Dormlq bug. (#711, #713. Thanks, Brendan Tracey)
* Update scipy benchmark script. (#745. Thanks, John Kirkham)
x86/x86_64:
* Optimize trsm kernels for AMD Bulldozer, Piledriver, Steamroller.
* Detect Intel Avoton.
* Detect AMD Trinity, Richland, E2-3200.
* Fix gemv performance bug on Mac OSX Intel Haswell.
* Fix some bugs with CMake and Visual Studio
ARM:
* Support and optimize Cortex-A57 AArch64.
(#686. Thanks, Ashwin Sekhar TK)
* Fix Android build on ARMV7 (#778. Thanks, Paul Mustiere)
* Update ARMV6 kernels.
POWER:
* Fix detection of POWER architecture
(#684. Thanks, Sebastien Villemot)
====================================================================
Version 0.2.15
27-Oct-2015
common:
* Support cmake on x86/x86-64. Natively compiling on MS Visual Studio.
(experimental. Thank Hank Anderson for the initial cmake porting work.)
On Linux and Mac OSX, OpenBLAS cmake supports assembly kernels.
e.g. cmake .
make
make test (Optional)
On Windows MS Visual Studio, OpenBLAS cmake only support C kernels.
(OpenBLAS uses AT&T style assembly, which is not supported by MSVC.)
e.g. cmake -G "Visual Studio 12 Win64" .
Open OpenBLAS.sln and build.
* Enable MAX_STACK_ALLOC flags by default.
Improve ger and gemv for small matrices.
* Improve gemv parallel with small m and large n case.
* Improve ?imatcopy when lda==ldb (#633. Thanks, Martin Koehler)
* Add vecLib benchmarks (#565. Thanks, Andreas Noack.)
* Fix LAPACK lantr for row major matrices (#634. Thanks, Dan Kortschak)
* Fix LAPACKE lansy (#640. Thanks, Dan Kortschak)
* Import bug fixes for LAPACKE s/dormlq, c/zunmlq
* Raise the signal when pthread_create fails (#668. Thanks, James K. Lowden)
* Remove g77 from compiler list.
* Enable AppVeyor Windows CI.
x86/x86-64:
* Support pure C generic kernels for x86/x86-64.
* Support Intel Boardwell and Skylake by Haswell kernels.
* Support AMD Excavator by Steamroller kernels.
* Optimize s/d/c/zdot for Intel SandyBridge and Haswell.
* Optimize s/d/c/zdot for AMD Piledriver and Steamroller.
* Optimize s/d/c/zapxy for Intel SandyBridge and Haswell.
* Optimize s/d/c/zapxy for AMD Piledriver and Steamroller.
* Optimize d/c/zscal for Intel Haswell, dscal for Intel SandyBridge.
* Optimize d/c/zscal for AMD Bulldozer, Piledriver and Steamroller.
* Optimize s/dger for Intel SandyBridge.
* Optimize s/dsymv for Intel SandyBridge.
* Optimize ssymv for Intel Haswell.
* Optimize dgemv for Intel Nehalem and Haswell.
* Optimize dtrmm for Intel Haswell.
ARM:
* Support Android NDK armeabi-v7a-hard ABI (-mfloat-abi=hard)
e.g. make HOSTCC=gcc CC=arm-linux-androideabi-gcc NO_LAPACK=1 TARGET=ARMV7
* Fix lock, rpcc bugs (#616, #617. Thanks, Grazvydas Ignotas)
POWER:
* Support ppc64le platform (ELF ABI v2. #612. Thanks, Matthew Brandyberry.)
* Support POWER7/8 by POWER6 kernels. (#612. Thanks, Fábio Perez.)
====================================================================
Version 0.2.14
24-Mar-2015
common:
* Improve OpenBLASConfig.cmake. (#474, #475. Thanks, xantares.)
* Improve ger and gemv for small matrices by stack allocation.
e.g. make -DMAX_STACK_ALLOC=2048 (#482. Thanks, Jerome Robert.)
* Introduce openblas_get_num_threads and openblas_get_num_procs.
(#497. Thanks, Erik Schnetter.)
* Add ATLAS-style ?geadd function. (#509. Thanks, Martin Köhler.)
* Fix c/zsyr bug with negative incx. (#492.)
* Fix race condition during shutdown causing a crash in
gotoblas_set_affinity(). (#508. Thanks, Ton van den Heuvel.)
x86/x86-64:
* Support AMD Streamroller.
ARM:
* Add Cortex-A9 and Cortex-A15 targets.
====================================================================
Version 0.2.13
3-Dec-2014
common:
* Add SYMBOLPREFIX and SYMBOLSUFFIX makefile options
for adding a prefix or suffix to all exported symbol names
in the shared library.(#459, Thanks Tony Kelman)
* Provide OpenBLASConfig.cmake at installation.
* Fix Fortran compiler detection on FreeBSD.
(#470, Thanks Mike Nolta)
x86/x86-64:
* Add generic kernel files for x86-64. make TARGET=GENERIC
* Fix a bug of sgemm kernel on Intel Sandy Bridge.
* Fix c_check bug on some amd64 systems. (#471, Thanks Mike Nolta)
ARM:
* Support APM's X-Gene 1 AArch64 processors.
Optimize trmm and sgemm. (#465, Thanks Dave Nuechterlein)
====================================================================
Version 0.2.12
13-Oct-2014
common:
* Added CBLAS interface for ?omatcopy and ?imatcopy.
* Enable ?gemm3m functions.
* Added benchmark for ?gemm3m.
* Optimized multithreading lower limits.
* Disabled SYMM3M and HEMM3M functions
because of segment violations.
x86/x86-64:
* Improved axpy and symv performance on AMD Bulldozer.
* Improved gemv performance on modern Intel and AMD CPUs.
====================================================================
Version 0.2.11
18-Aug-2014
common:
* Added some benchmark codes.
* Fix link error on Linux/musl.(Thanks Isaac Dunham)
x86/x86-64:
* Improved s/c/zgemm performance for Intel Haswell.
* Improved s/d/c/zgemv performance.
* Support the big numa machine.(EXPERIMENT)
ARM:
* Fix detection when cpuinfo uses "Processor". (Thanks Isaiah)
====================================================================
Version 0.2.10
16-Jul-2014
common:
* Added BLAS extensions as following.
s/d/c/zaxpby, s/d/c/zimatcopy, s/d/c/zomatcopy.
* Added OPENBLAS_CORETYPE environment for dynamic_arch. (a86d34)
* Added NO_AVX2 flag for old binutils. (#401)
* Support outputing the CPU corename on runtime.(#407)
* Patched LAPACK to fix bug 114, 117, 118.
(http://www.netlib.org/lapack/bug_list.html)
* Disabled ?gemm3m for a work-around fix. (#400)
x86/x86-64:
* Fixed lots of bugs for optimized kernels on sandybridge,Haswell,
bulldozer, and piledriver.
https://github.com/xianyi/OpenBLAS/wiki/Fixed-optimized-kernels-To-do-List
ARM:
* Improved LAPACK testing.
====================================================================
Version 0.2.9
10-Jun-2014
common:
* Improved the result for LAPACK testing. (#372)
* Installed DLL to prefix/bin instead of prefix/lib. (#366)
* Build import library on Windows.(#374)
x86/x86-64:
* To improve LAPACK testing, we fallback some kernels. (#372)
https://github.com/xianyi/OpenBLAS/wiki/Fixed-optimized-kernels-To-do-List
====================================================================
Version 0.2.9.rc2
06-Mar-2014
common:
* Added OPENBLAS_VERBOSE environment variable.(#338)
* Make OpenBLAS thread-pool resilient to fork via pthread_atfork.
(#294, Thank Olivier Grisel)
* Rewrote rotmg
* Fixed sdsdot bug.
x86/x86-64:
* Detect Intel Haswell for new Macbook.
====================================================================
Version 0.2.9.rc1
13-Jan-2013
common:
* Update LAPACK to 3.5.0 version
* Fixed compatiable issues with Clang and Pathscale compilers.
x86/x86-64:
* Optimization on Intel Haswell.
* Enable optimization kernels on AMD Bulldozer and Piledriver.
ARM:
* Support ARMv6 and ARMv7 ISA.
* Optimization on ARM Cortex-A9.
====================================================================
Version 0.2.8
01-Aug-2013
common:
* Support Open64 5.0. (#266)
* Add executable stack markings. (#262, Thank Sébastien Fabbro)
* Respect user's LDFLAGS (Thank Sébastien Fabbro)
x86/x86-64:
* Rollback bulldozer and piledriver kernels to barcelona kernels (#263)
We will fix the compuational error bug in bulldozer and piledriver kernels.
====================================================================
Version 0.2.7
20-Jul-2013
common:
* Support LSB (Linux Standard Base) 4.1.
e.g. make CC=lsbcc
* Include LAPACK 3.4.2 source codes to the repo.
Avoid downloading at compile time.
* Add NO_PARALLEL_MAKE flag to disable parallel make.
* Create openblas_get_parallel to retrieve information which
parallelization model is used by OpenBLAS. (Thank grisuthedragon)
* Detect LLVM/Clang compiler. The default compiler is Clang on Mac OS X.
* Change LIBSUFFIX from .lib to .a on windows.
* A work-around for dtrti_U single thread bug. Replace it with LAPACK codes. (#191)
x86/x86-64:
* Optimize c/zgemm, trsm, dgemv_n, ddot, daxpy, dcopy on
AMD Bulldozer. (Thank Werner Saar)
* Add Intel Haswell support (using Sandybridge optimizations).
(Thank Dan Luu)
* Add AMD Piledriver support (using Bulldozer optimizations).
* Fix the computational error in zgemm avx kernel on
Sandybridge. (#237)
* Fix the overflow bug in gemv.
* Fix the overflow bug in multi-threaded BLAS3, getrf when NUM_THREADS
is very large.(#214, #221, #246).
MIPS64:
* Support loongcc (Open64 based) compiler for ICT Loongson 3A/B.
Power:
* Support Power7 by old Power6 kernels. (#220)
====================================================================
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.
* Work-around #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, work-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)
====================================================================