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Author SHA1 Message Date
Martin Kroeker
88928650c4 Merge pull request #2883 from martin-frbg/issue2872 
Minor CMAKE fixes
 2020-10-11 10:30:33 +02:00
Martin Kroeker
82a497ec5d restore PRESCOTT default for DYNAMIC_LIST 2020-10-11 00:43:09 +02:00
Martin Kroeker
de27e4f5fb Stop DYNAMIC_ARCH build if the toplevel source contains a stray config_kernel.h from a gmake build 
This is unlikely to happen in practice, but if it does, the rogue file would get included instead of the dynamically generated version for each target_core, leading to very confusing errors like "invalid operands (undefined UND and ABS sections)" in compilation of the assembly kernels as macros like PREFETCH would remain undefined
 2020-10-11 00:40:22 +02:00
Martin Kroeker
e1b7123bbe Merge pull request #2867 from Qiyu8/usimd-floatdot 
Optimize the performance of dot by using universal intrinsics in X86/ARM
 2020-10-10 12:10:25 +02:00
Qiyu8
f32d34a015 add sse3 compiler flag 2020-10-10 10:36:15 +08:00
Martin Kroeker
599777ecb7 Merge pull request #2879 from martin-frbg/issue2839 
Default BLAS3_MEM_ALLOC_THRESHOLD on all platforms to 32
 2020-10-06 23:26:52 +02:00
Martin Kroeker
a5feea6611 make BLAS3_MEM_ALLOC_THRESHOLD configurable on non-Windows 2020-10-04 23:01:06 +02:00
Martin Kroeker
dc8e4e1959 Reduce the BLAS3 heap allocation threshold to 32 and mark it as configurable 2020-10-04 22:59:24 +02:00
Martin Kroeker
cccd1438da Merge pull request #93 from xianyi/develop 
rebase
 2020-10-04 22:57:11 +02:00
Martin Kroeker
f032d8966e Merge pull request #2874 from Flamefire/memory_fixes 
Avoid out of bounds access on invalid memory free
 2020-10-04 15:16:51 +02:00
Martin Kroeker
f6e4cf2f9d Merge pull request #2876 from Flamefire/omp_fork_fix 
Lazyly reinit threads after a fork in OMP mode
 2020-10-03 22:52:17 +02:00
Martin Kroeker
9828343e12 Merge pull request #2878 from brada4/asms 
fix clang std=c18 compilation on aarch64
 2020-10-03 22:51:49 +02:00
User User-User
d2333e7842 aarch64 fix std=c18 compilation 2020-10-03 18:00:34 +03:00
Alexander Grund
3094fc6c83 Lazyly reinit threads after a fork in OMP mode 
This initializes the per-thread memory buffers which get
cleared/released on a fork via pthread_at_fork. Not doing so leads to
each thread calling blas_memory_alloc on almost every execution which
slows down the code significantly as the threads race for the memory
allocation using locks to serialize that.
 2020-10-01 15:41:42 +02:00
Alexander Grund
3c05f54df8 Avoid out of bounds access on invalid memory free 2020-10-01 10:48:45 +02:00
Alexander Grund
dee7c49938 Fix TABs and trailing space 2020-10-01 10:43:16 +02:00
Martin Kroeker
d3c0d6811b Merge pull request #2873 from martin-frbg/issue2871 
Check for __linux rather than linux in cpuid code and benchmarks
 2020-10-01 06:38:22 +02:00
Martin Kroeker
9637cd1fd1 Merge pull request #2865 from thisch/backticks 
Consolidate usage of backticks for build options
 2020-10-01 06:38:06 +02:00
Martin Kroeker
2367726578 Remove redundant status message 2020-09-30 23:28:49 +02:00
Martin Kroeker
5464eb13ea Change ifdef linux to __linux for C11 compatibility 2020-09-30 22:59:41 +02:00
Martin Kroeker
e1574cbc83 Change ifdef linux to __linux for C11 compatibility 
and add a fallback for unsupported operating systems in detect()
 2020-09-30 22:50:21 +02:00
Martin Kroeker
0b2bb5696a Change ifdef linux to __linux for C11 compatibility 2020-09-30 22:47:25 +02:00
Martin Kroeker
a7d5d0078d Change ifdef linux to __linux for C11 compatibility 2020-09-30 22:46:25 +02:00
Martin Kroeker
be40440ec5 Change ifdef linux to __linux for C11 compatibility 2020-09-30 22:45:18 +02:00
Martin Kroeker
2bf70c8e3b Change ifdef linux to __linux for C11 compatibility 2020-09-30 22:43:25 +02:00
Qiyu8
60e6c68e38 Adapt ARM architect 2020-09-29 16:36:14 +08:00
Martin Kroeker
64629cb5c7 Merge pull request #91 from xianyi/develop 
rebase
 2020-09-28 22:48:53 +02:00
Qiyu8
1b1a757f5f Optimize the performance of dot by using universal intrinsics in X86/ARM 2020-09-28 20:36:53 +08:00
Martin Kroeker
0d98ce202c Merge pull request #2866 from RajalakshmiSR/p10_dcopy 
Optimize dcopy/zcopy for POWER10
 2020-09-28 07:22:54 +02:00
Rajalakshmi Srinivasaraghavan
2df4235e00 Optimize dcopy/zcopy for POWER10 
This patch makes use of new POWER10 vector pair instructions for
loads and stores. Tested in simulator and no new failures.
 2020-09-27 21:42:32 -05:00
Thomas Hisch
fe8cd5ae7e Consolidate usage of backticks for build options 
There were some build options in the README that were not
highlighted. Now all are highlighted.
 2020-09-28 00:42:17 +02:00
Martin Kroeker
ba31c8f5f9 Merge pull request #2853 from Qiyu8/usimd-daxpy 
Optimize the performance of daxpy by using universal intrinsics
 2020-09-27 23:19:59 +02:00
Martin Kroeker
e961d4d609 Merge pull request #2864 from martin-frbg/lapack445 
FIx underflow/rounding errors in LAPACK (S,D)LANV2
 2020-09-27 23:11:17 +02:00
Martin Kroeker
7ed25e9e10 FIx underflow/rounding errors in LAPACK (S,D)LANV2 
Reference-LAPACK PR 445, fixing their issue 263
 2020-09-27 22:59:20 +02:00
Martin Kroeker
7b169379e0 Merge pull request #2863 from martin-frbg/readmefixes 
Readmefixes
 2020-09-27 22:50:25 +02:00
Martin Kroeker
7f539fb850 Update cpu list, outline cmake build, clarify scope of set_num_threads extension 2020-09-27 22:48:41 +02:00
Martin Kroeker
caf7a12295 Merge pull request #90 from xianyi/develop 
rebase
 2020-09-27 22:35:45 +02:00
Martin Kroeker
72b5b73647 Merge pull request #2850 from xiaojiayuan111/develop 
fix a bug of trmm
 2020-09-27 12:12:35 +02:00
Qiyu8
881c15179f remove default support for FMA4 on zen architect 2020-09-27 09:35:50 +08:00
Martin Kroeker
dfaafd3b55 Merge pull request #2854 from martin-frbg/travis-graviton 
Add an AWS-Graviton2 build to Travis CI
 2020-09-23 21:59:18 +02:00
Martin Kroeker
f2e9a24e1a Add AWS Graviton2 build 2020-09-23 19:02:20 +02:00
Martin Kroeker
61fae59298 Merge pull request #88 from xianyi/develop 
rebase
 2020-09-22 23:15:33 +02:00
Martin Kroeker
33d22f99f1 Merge pull request #2851 from martin-frbg/travis-xcode12 
Add an OSX build with xcode12
 2020-09-22 21:44:55 +02:00
Martin Kroeker
5ba01dd1a8 Add an OSX build with xcode12 2020-09-22 17:26:19 +02:00
Qiyu8
14f7dad3b7 performance improved 2020-09-22 16:52:15 +08:00
y00512012
06cf73a239 fix a bug of trmm 2020-09-22 16:47:10 +08:00
Qiyu8
325b539c26 Optimize the performance of daxpy by using universal intrinsics 2020-09-22 10:38:35 +08:00
Martin Kroeker
0f112077e6 Merge pull request #2847 from mhillenibm/fixup_cscal 
s390x: fix cscal and zscal implementations
 2020-09-21 22:22:43 +02:00
Marius Hillenbrand
22aa81f3e5 s390x: fix cscal and zscal implementations 
The implementation of complex scalar * vector multiplication for Z14
makes some LAPACK tests fail because the numerical differences to the
reference implementation exceed the threshold (as can be seen by running
make lapack-test and replacing kernel/zarch/cscal.c with a generic
implementation for comparison).

The complex multiplication uses terms of the form a * b + c * d for both
real and imaginary parts. The assembly code (and compiler-emitted code
as well) uses fused multiply add operations for the second product and
sum. The results can be "surprising", for example when both terms in the
imaginary part nearly cancel each other out. In that case, the second
product contributes more digits to the sum than the first product that
has been rounded before.

One option is to use separate multiplications (which then round the same
way) and a distinct add. Change the code to pursue that path, by (1)
requesting the compiler not to contract the operations into FMAs and (2)
replacing the assembly kernel with corresponding vectorized C code
(where change 1 also applies).

Signed-off-by: Marius Hillenbrand <mhillen@linux.ibm.com>
 2020-09-21 13:10:05 +02:00
Marius Hillenbrand
77ea73f5e5 s390x: for clang use fp-contract=on instead of fast 
Make clang slightly more cautious when contracting floating-point
operations (e.g., when applying fused multiply add) by setting
-ffp-contract=on (instead of fast).

Signed-off-by: Marius Hillenbrand <mhillen@linux.ibm.com>
 2020-09-21 11:32:08 +02:00