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201 Commits

Author SHA1 Message Date
Craig Donner
c2545b0fd6 Fixed a few more unnecessary calls to num_cpu_avail. 
I don't have as many benchmarks for these as for gemm, but it should still
make a difference for small matrices.
 2018-06-11 10:17:16 +01:00
Craig Donner
66316b9f4c Improve performance of GEMM for small matrices when SMP is defined. 
Always checking num_cpu_avail() regardless of whether threading will actually
be used adds noticeable overhead for small matrices.  Most other uses of
num_cpu_avail() do so only if threading will be used, so do the same here.
 2018-06-07 15:29:13 +01:00
Martin Kroeker
e8880c1699 Use a single thread for small input size 
copies daxpy improvement from #27, see #1560
 2018-06-07 10:26:55 +02:00
Martin Kroeker
1d27fa8507 Merge pull request #1539 from martin-frbg/ztrmv-1332 
Disable multithreading in ztrmv
 2018-04-27 23:10:21 +02:00
Martin Kroeker
a8ed428bab Disable multithreading in ztrmv 
BLAS-Tester shows that the same problem exists as with DTRMV (issue #1332)
 2018-04-25 22:35:46 +02:00
Martin Kroeker
809fd0d451 Rewrite ROTMG to address cases not covered by the netlib algorithm (#1480) 
* Rewrite ROTMG based on the new implementation in GONUM based on the algorithm proposed by Tim Hopkins, see issue 1452 for the reference
* Correct ROTMG utest for issue1452 and add another from gonum, also correct transposition of expected and observed values in error messages
 2018-03-04 17:39:56 +01:00
Martin Kroeker
72f14a0363 Fix conditionals in the rescaling against GAMSQ 2018-02-18 12:54:52 +01:00
Martin Kroeker
798f1595d5 Fix condition in both second scaling loops 2018-02-18 12:37:09 +01:00
Martin Kroeker
0464aa6784 Remove debug printfs 2018-02-09 23:06:50 +01:00
Martin Kroeker
55840f0bc9 Keep the flag handling separate from the scaling loops 
Fixes #1452 and is more in line with how ATLAS does it. The earlier fix from #356 only moved the bug elsewhere, but we will never want the iterative rescaling to change the dflag setting and variable associations with each cycle.
 2018-02-09 23:00:03 +01:00
Andrew
47deec2c1a fix couple of dead assignment warnings 2017-12-22 00:56:35 +01:00
Martin Kroeker
38763ec4f3 Disable multithreading for trmv 
as a (hopefully temporary) workaround for #1332
 2017-12-03 22:40:54 +01:00
Martin Kroeker
9251a2efde Merge pull request #1359 from brada4/develop 
Eliminate mode variable where not needed in syrk interface
 2017-11-18 23:47:17 +01:00
Martin Kroeker
b46e2b57cc Make return parameter of cblas_Xdotc_sub, cblas_Xdotu_sub a void pointer as well 2017-11-18 20:28:02 +01:00
Martin Kroeker
3ce401f51b Make last parameter of cblas_Xdotc_sub/cblas_Xdotu_sub a void pointer as well 2017-11-18 18:58:40 +01:00
Andrew
27575d200a Eliminate mode variable where not needed 2017-11-15 15:32:38 +01:00
Martin Kroeker
2c222f1faa Modify complex CBLAS functions to take void pointers 
Modify complex CBLAS functions to take void pointers instead of float or double arguments (to bring the prototypes in line with netlib and other implementations' cblas.h)
 2017-11-05 15:53:14 +01:00
Martin Kroeker
742f54c235 Merge pull request #1303 from martin-frbg/imatcopy-rowscols 
Fix cols/rows mixup in omatcopy 2nd step for BlasTrans cases
 2017-09-14 21:46:26 +02:00
Martin Kroeker
d674fbb4c7 Fix cols/rows mixup in omatcopy 2nd step for BlasTrans cases 
Equivalent of #1244 (issue #899) for the non-complex cases. Fixes #1289
 2017-09-14 19:59:05 +02:00
Martin Kroeker
46c9357c72 Merge pull request #1288 from quickwritereader/develop 
Optimized standard Blas Level-1,2 (excluding nrm2 functions) for z13 (double precision). Issue 884
 2017-09-09 23:47:17 +02:00
Abdurrauf
1cfdb2295d Optimized standard Blas Level-1,2 (excluding nrm2 functions) for z13 (double precision) 2017-09-06 16:41:08 +04:00
Martin Kroeker
00740c0e34 Merge pull request #1290 from martin-frbg/imatcopy 
Use in-place transform shortcut only if matrix is square
 2017-09-03 13:02:10 +02:00
Martin Kroeker
254db9bd7c Use in-place transform shortcut only if matrix is square 2017-09-03 09:52:55 +02:00
Isuru Fernando
d245caa49a Support out-of-source build 2017-08-01 15:16:14 +05:30
Martin Kroeker
376048156b Use in-place transform shortcut only if matrix is square 2017-07-21 11:20:15 +02:00
Martin Kroeker
d1c5b8f913 Add files via upload 2017-07-20 20:51:06 +02:00
Martin Kroeker
91bde7d315 Exchange rows and cols in final omatcopy with BlasTrans 
This is MicMuc's patch from #899
 2017-07-15 22:02:53 +02:00
Martin Kroeker
1e06b49854 Update xerbla.c 2017-04-26 20:29:30 +02:00
Martin Kroeker
7f546f54fa Add cblas_xerbla 2017-04-26 20:01:34 +02:00
Martin Kroeker
a809431e34 Add cblas_xerbla() 2017-04-26 19:58:59 +02:00
Andrew
99880f7906 Address unlikely memleak in zimatcopy interface (#1129) 
* fix unlikely memleak in zimatcopy interface

* fix only unlikely memleak in zimatcopy interface

* fix only unlikely memleak in zimatcopy interface
 2017-03-16 13:13:31 +01:00
Martin Kroeker
211d2eceb5 Update zdot.c 2017-03-13 18:08:00 +01:00
Martin Kroeker
5813ed095b Update zdot.c 2017-03-13 17:49:07 +01:00
Martin Kroeker
e44b028fe5 Replace gnu _real_, _imag_ extensions in initializers 2017-03-13 00:40:11 +01:00
Ashwin Sekhar T K
071a830e8b THUNDERX2T99: Add optimized S/D/C/Z SWAP Implementations 2017-02-03 03:55:06 -08:00
Werner Saar
dd6212e684 updated some level1 funcions, that are not thread save 2017-01-10 14:05:07 +01:00
jiahaipeng
84b8170bfb Adding multi-threading for copy, dot, rot, and asum funcitons 2017-01-10 11:48:58 +08:00
Werner Saar
ae4ac6f984 removed obj-files, that are moved to lapack 3.7.0 2017-01-06 16:14:53 +01:00
Jerome Robert
d346c533b1 Fix z/ctrmv stack allocation on AMD bulldozer and barcelona target 
* Hopefully, because this was found by error and trial (dark magic)
* Ref #786
 2016-06-07 16:11:09 +02:00
Werner Saar
f04af36ad0 Merge pull request #898 from wernsaar/develop 
added experimental support for optimized lapack fortran functions
 2016-05-31 14:13:52 +02:00
Werner Saar
41000c8443 added directory for optimized lapack fortan codes and added dlaqr5.f 2016-05-31 12:53:07 +02:00
John Biddiscombe
053044ae4d Replace CMAKE_SOURCE_DIR/CMAKE_BINARY_DIR with PROJECT_SOURCE_DIR/PROJECT_BINARY_DIR 
If OpenBLAS is built using add_subdirectory(OpenBlas) as part of another project
then the paths set by CMAKE_XXX_DIR are relative to the parent project
and not the OpenBLAS project.
 2016-05-25 09:13:28 +02:00
Jerome Robert
40af513669 Disable multi-threading in swap 
* Close #873
 2016-05-16 13:07:55 +00:00
Jerome Robert
16ec5323c9 Fix zgemv.c compilation when stack allocation is disabled 2016-02-08 12:05:02 +01:00
Jerome Robert
5fc2203d8a zgemv: Add a workaround for #746 2016-02-08 11:25:15 +01:00
Jerome Robert
78dcf5c3d5 Improve performances of ztrmv on small matrices 
* Use stack allocation
* Disable multi-threading
* Ref #727
 2016-02-08 11:25:02 +01:00
Jerome Robert
32f793195f Use stack allocation in zgemv and zger 
For better performance with small matrices
Ref #727
 2016-02-08 11:24:21 +01:00
Jerome Robert
1fe3aab047 Use GEMM_MULTITHREAD_THRESHOLD as a number of ops 
...not a matrix size. For GEMM_MULTITHREAD_THRESHOLD=4
(the default value) this does not change anything but
for other values it make the GEMM and GEMV thresholds
changing in the same way.

Close #742
 2016-01-24 11:31:40 +01:00
Jerome Robert
1a1935507b [z]ger: increase multithread threshold 
The ones given in 3ae30cd was by far to low because I
mixed m and m*n in my measures. Note that the new ones
are closed to the [z]gemv ones which is comforting
that both are right.
 2016-01-24 10:46:35 +01:00
Jerome Robert
66eafb16cf swap: disable multi-threading for small matrices 
Close #731
 2016-01-19 17:14:46 +01:00