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709 Commits

Author SHA1 Message Date
Zhang Xianyi
d744c9590a In OpenMP threading, preallocate the thread buffer instead of allocating the buffer every time. This patch improved the performance slightly. 2013-03-01 14:36:47 +08:00
Zhang Xianyi
3cc6ae793e Refs #174. Return sb pointer when OpenMP or Windows. 2013-02-26 00:48:21 +08:00
Zhang Xianyi
5155e3f509 Refs #174. Fixed the overflowing buffer bug of multithreading hbmv and sbmv. 
Instead of using thread 0 buffer, each thread uses its own sb buffer.
Thus, it can avoid overflowing thread 0 buffer.
 2013-02-13 16:05:58 +08:00
Zhang Xianyi
5c8bf6ae0e Merge branch 'bulldozer' into develop 2013-02-10 01:19:42 +08:00
Zhang Xianyi
6ae2f868fd Set the affinity. Only use 1 core of each module on bulldozer. 2013-02-09 18:19:02 +01:00
Zhang Xianyi
299b5a44dc Merge branch 'develop' of github.com:xianyi/OpenBLAS into bulldozer 2013-02-09 16:22:04 +01:00
Zhang Xianyi
8cdb795438 Refs #187. Use binary code for xgetbv, which is compatible with old compiler. 2013-01-22 00:25:08 +08:00
Zhang Xianyi
a4ee6f3915 Fixed #172. Support Intel Xeon E7540. 2012-12-18 08:57:46 +08:00
Zhang Xianyi
fba6b590f2 Merge branch 'master' into develop 2012-12-15 22:49:37 +08:00
Julian Taylor
1138817dd2 add a sanity check on the detected cpu type 
if we have 64 bit pointers we can't have a 32 bit cpu, so fall back to
the 64bit cpu fallback (prescott)
E.g. the cpu detection fails in amd qemu64 emulation (family 6 model 2)
causing it to use the uninitialized gotoblas_ATHLON
 2012-12-15 13:29:46 +01:00
Zhang Xianyi
bdf8d9411e Refs #163. Obtain the build configure on runtime. 
openblas_get_config function returns the configure string.
So far, it supports USE64BITINT, NO_CBLAS, NO_LAPACK, NO_LAPACKE,
DYNAMIC_ARCH, NO_AFFINITY.

Example:
 #include <stdio.h>
extern char * openblas_get_config();
void main()
{
  printf("%s\n",openblas_get_config());
  return;
}
 2012-12-10 15:52:51 +08:00
Zhang Xianyi
bfaaa975e6 Added BULLDOZER target. So far it uses barcelona kernels. 2012-12-07 00:53:31 +08:00
Zhang Xianyi
b7c0fa6bd2 Init AMD Bulldozer codebase. 2012-12-06 07:29:54 -05:00
Zhang Xianyi
6751f7b9a7 Fixed #157. Only detect the number of physical CPU cores on Mac OSX. 2012-11-13 15:48:57 +08:00
Zhang Xianyi
538c764d2b Refs #153. Restore the original CPU affinity when calling openblas_set_num_threads(1). 
Please read the issue on github.com for the detail.
 2012-11-06 18:21:46 +08:00
Zhang Xianyi
6c5899dff5 Don't use xgetbv instruction when NO_AVX=1 2012-10-09 14:52:35 +08:00
Zhang Xianyi
735ca38b8f Refs #139. Check OS supporting AVX on runtime. 2012-09-18 15:46:20 +08:00
Zhang Xianyi
f76a384841 Refs #139. Added NO_AVX flag to use old Nehalem kernels on Sandy Bridge. 
For example, make NO_AVX=1 or make DYNAMIC_ARCH=1 NO_AVX=1
 2012-09-17 23:25:46 +08:00
Jameson Nash
d0e731e8b8 provide support for passing CFLAGS, FFLAGS, PFLAGS, FPFLAGS to make on the command line 2012-08-21 00:31:12 -04:00
Zhang Xianyi
fe4ab95cd5 Refs #136. Fixed a bug about controlling the number of threads on Windows. 2012-08-19 23:50:54 +08:00
Xianyi Zhang
801383effe Fixed a hang bug when shutdown blas threads server on Windows. Added the feature about dynamic changing the number of threads on Windows. 2012-08-14 18:34:32 +08:00
Zhang Xianyi
54cd65e47f Use sandy bridge kernel when DYNAMIC_ARCH=1. 2012-08-13 15:25:08 +08:00
Zhang Xianyi
a55821a2ec Refs #132. Kill the threads when unload the library. 2012-08-11 21:33:15 +08:00
Zhang Xianyi
d007cca61d Refs #134. Fixed the building bug on IBM Power. 2012-08-10 11:54:21 +08:00
Xianyi Zhang
25f1a573fd Fixed the build bug when DYNAMIC_ARCH=0. 2012-07-07 12:12:24 +08:00
Sylvestre Ledru
3692b4d631 Improve the detection of sparc 2012-07-02 02:51:38 +02:00
Xianyi Zhang
a507b56ab1 Refs #119 #118. Fixed disabling hyper threading bug. 2012-06-29 15:53:24 +08:00
Xianyi Zhang
853d16ed7e Added openblas_set_num_threads dummy function on Windows. We plan to implement this feature in next version. 2012-06-23 13:07:38 +08:00
Zhang Xianyi
422359d09a Export openblas_set_num_threads in shared library. 2012-06-23 11:32:43 +08:00
Zhang Xianyi
d3b67d0bd8 Refs #113. Fixed the typo BOBCATE -> BOBCAT 2012-05-31 22:40:15 +08:00
Zhang Xianyi
d6cab3f37e Refs #113. Support AMD Bobcate using Barcelona kernel codes. Replace 3DNow! with MMX. 2012-05-31 18:17:45 +08:00
Zhang Xianyi
90d6ad569d Merge branch 'sandybridge' into develop 
Just copy the kernel codes from Nehalem. The optimization is ongoing.
 2012-05-31 12:44:55 +08:00
Xianyi Zhang
a6adbb299d Refs #112. Improved setting thread affinity in Linux. Remove the limit (64) about the number of CPU cores. 2012-05-29 15:23:52 +08:00
Xianyi Zhang
a53c6e2440 Merge branch 'develop' into sandybridge 2012-05-25 23:16:44 +08:00
Zaheer Chothia
a431042475 Fix inconsistent case for OS_* macros (Refs pull request #111) 2012-05-23 00:01:14 +02:00
Mike Nolta
4e29b6ffc0 FreeBSD: fix OS_FreeBSD -> OS_FREEBSD typos 2012-05-21 16:57:19 -04:00
Xianyi Zhang
19a48b82cf Init Sandybridge codes based on Nehalem. 2012-03-30 20:01:03 +08:00
Xianyi Zhang
0b89a7a92d Ref #82. Disable outputing debug information in alloc_mmap. 2012-03-23 18:17:12 +08:00
Wang Qian
8163ab7e55 Change the block size on Loongson 3B. 2011-11-23 18:41:49 +00:00
Xianyi Zhang
ef6f7f32ae Fixed mbind bug on Loongson 3B. Check the return value of my_mbind function. 2011-11-23 17:17:41 +00:00
Xianyi Zhang
b95ad4cfaf Support detecting ICT Loongson-3B CPU. 2011-11-09 19:29:50 +00:00
traz
9fe3049de6 Adding conditional compilation(#if defined(LOONGSON3A)) to avoid affecting the performance of other platforms. 2011-09-26 15:21:45 +00:00
traz
831858b883 Modify aligned address of sa and sb to improve the performance of multi-threads. 2011-09-23 20:59:48 +00:00
Xianyi Zhang
16fc083322 Refs #47. Fixed the seting parameter bug on Loongson 3A single thread version. 2011-09-08 16:39:34 +00:00
Xianyi Zhang
3c856c0c1a Check the return value of pthread_create. Update the docs with known issue on Loongson 3A. 2011-09-06 18:27:33 +00:00
Xianyi Zhang
4727fe8abf Refs #47. On Loongson 3A, set DGEMM_R parameter depending on different number of threads. It would improve double precision BLAS3 on multi-threads. 2011-09-05 15:13:52 +00:00
Xianyi Zhang
82f5274828 Refs #39. It's unnecessary to include sys/mman.h file in blas_server_omp.c. 2011-06-22 01:52:20 +08:00
Xianyi Zhang
1496383224 Print the wall time (cycles) with enabling FUNCTION_PROFILE. 2011-06-09 10:40:15 +08:00
Xianyi Zhang
af40551c9f Fixed the makefile bug about openblas_set_num_threads. 2011-05-27 21:15:30 +08:00
Xianyi Zhang
417b8ec792 Added openblas_set_num_threads for Fortran. 2011-05-06 17:03:35 +08:00