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32 Commits

Author SHA1 Message Date
Martin Kroeker
a6a8cc2b7f Fix errors in cpu enumeration with glibc 2.6 
for #2114
 2019-05-07 13:34:52 +02:00
Andrew
8a0b086b28 add missing bracket for old glibc (cppcheck) 2018-01-12 22:35:48 +01:00
Andrew
8aafa0473c address last warnings as seen by gcc7 2018-01-01 20:57:12 +01:00
Martin Kroeker
28ae3ca76f Limit MAX_CPU to 1024 for now 
Some Linux distributions (notably SuSE) have raised CPU_SETSIZE to 4096, apparently disregarding API limitations.
From #1348, the highest value to survive array initialization (on a desktop system) is 3232, and 1024 - which is the 
more usual CPU_SETSIZE limit, was demonstrated to work fine on an actual bignuma system.
 2017-12-05 12:54:15 +01:00
Martin Kroeker
07e7c36dac Handle shmem init failures in cpu affinity setup code 
Failures to obtain or attach shared memory segments would lead to an exit without explanation of the exact cause.
This change introduces a more verbose error message and tries to make the code continue without setting cpu affinity.
Fixes #1351
 2017-11-18 23:57:44 +01:00
Martin Kroeker
2a6fef9a55 Try to handle shmget or shmat failing 
also replaces one verbatim sched_yield with the YIELDING macro for consistency as suggested in #1351
 2017-11-09 23:16:13 +01:00
Martin Kroeker
c4af196a2d Honor cgroup/cpuset limits when enumerating cpus 2017-07-25 22:47:34 +02:00
Martin Kroeker
480e697681 Revert "Honor cgroup/cpuset limits when enumerating cpus" (#1246) 2017-07-24 16:17:50 +02:00
Martin Kroeker
80373ea039 More fixes for silly misedits 2017-07-15 12:48:42 +02:00
Martin Kroeker
d12b75a6c4 Fixup braces lost in previous edit 2017-07-15 11:53:28 +02:00
Martin Kroeker
7294fb1d9d Merge branch 'develop' into cgroups 2017-07-15 10:40:42 +02:00
Martin Kroeker
29fc429d9a Honor cgroup/cpuset constraints when enumerating cpus 2017-07-11 18:27:33 +02:00
Martin Kroeker
c1cf62d2c0 Add sched_getcpu implementation for pre-2.6 glibc 
Fixes #1210, compilation on RHEL5 with affinity enabled
 2017-07-09 09:45:38 +02:00
Howard Su
ff1da01476 USE NPROCESSOR_CONF instaed of NPORCESSOR_ONLN 
to determine the number of CPU. In ARM platform,
online CPU will increasing when there is more workload.
while configure cpu is the max number of CPU.
 2016-10-13 12:37:50 +00:00
Ashwin Sekhar T K
0fb380c966 Update NUMA CPU binding 
When the number of process can all be
accommodated within the current node,
then use cores from the current node only.
 2016-04-29 11:58:15 +05:30
Zhang Xianyi
2fb02626da Update organization info. 2014-11-25 15:28:58 +08:00
Isaac Dunham
f7eb81a846 Fix link error on Linux/musl. 
get_nprocs() is a GNU convenience function equivalent to POSIX2008
sysconf(_SC_NPROCESSORS_ONLN); the latter should be available in unistd.h
on any current *nix. (OS X supports this call since 10.5, and FreeBSD
currently supports it. But this commit does not change FreeBSD or OS X
versions.)
 2014-08-03 15:06:30 -07:00
wernsaar
793175be3a added experimental support for big numa machines 2014-08-02 13:40:16 +02:00
Zhang Xianyi
7a8949e0ce Merge branch 'develop' of https://github.com/TimothyGu/OpenBLAS into TimothyGu-develop 
Conflicts:
	driver/others/memory.c
 2014-06-28 20:51:31 +08:00
Timothy Gu
6c2ead30f0 Remove all trailing whitespace except lapack-netlib 
Signed-off-by: Timothy Gu <timothygu99@gmail.com>
 2014-06-27 12:05:18 -07:00
Jameson Nash
f41f03ab83 fix #394. this cleans up some handles after using them, and doesn't disable ALL process privileges upon success 2014-06-27 12:16:57 -04:00
Zhang Xianyi
72b1edaf1b Merge branch 'develop' into bulldozer 
Conflicts:
	kernel/x86_64/KERNEL.BULLDOZER
 2013-07-28 06:38:25 +02:00
Zhang Xianyi
4471c77905 Fixed #261. Use strncmp instead of a comparing trick. 2013-07-26 23:43:54 +08:00
Zhang Xianyi
f54f5bac9e Refs #248. Fixed the LSB compatiable issue for BLAS only. 
For example, make CC=lsbcc NO_LAPACK=1.
 2013-07-09 15:38:03 +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
Xianyi Zhang
a507b56ab1 Refs #119 #118. Fixed disabling hyper threading bug. 2012-06-29 15:53:24 +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
989c6f8b06 Fixed #14 the SEGFAULT bug on 64 cores. On SMP server, the number of CPUs or cores should be less than or equal to 64. 2011-04-07 14:48:10 +08:00
Xianyi Zhang
f7a5e049e2 Enable Debug flags in memory alloc and init functions. 2011-02-26 11:51:39 +08:00
Xianyi Zhang
128418f49b Fixed #10. Supported GOTO_NUM_THREADS & GOTO_THREADS_TIMEOUT environment variables. 2011-02-24 16:32:13 +08:00
Xianyi Zhang
e6c13e2b3c changed library name to openblas and modified environment variable. 2011-01-24 17:58:05 +00:00
Xianyi Zhang
342bbc3871 Import GotoBLAS2 1.13 BSD version codes. 2011-01-24 14:54:24 +00:00