diff options
Diffstat (limited to 'src/benchmarks/falsesharing/cpuinfo.h')
| -rw-r--r-- | src/benchmarks/falsesharing/cpuinfo.h | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/src/benchmarks/falsesharing/cpuinfo.h b/src/benchmarks/falsesharing/cpuinfo.h deleted file mode 100644 index 1ed1f36..0000000 --- a/src/benchmarks/falsesharing/cpuinfo.h +++ /dev/null @@ -1,202 +0,0 @@ -// -*- C++ -*-
-
-/*
-
- Heap Layers: An Extensible Memory Allocation Infrastructure
-
- Copyright (C) 2000-2003 by Emery Berger
- http://www.cs.umass.edu/~emery
- emery@cs.umass.edu
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-*/
-
-
-
-#ifndef HL_CPUINFO_H
-#define HL_CPUINFO_H
-
-#if defined(_WIN32)
-#include <windows.h>
-#include <process.h>
-#else
-#include <unistd.h>
-#endif
-
-
-#if !defined(_WIN32)
-#include <pthread.h>
-#endif
-
-#if defined(__SVR4) // Solaris
-#include <sys/lwp.h>
-extern "C" unsigned int lwp_self(void);
-#include <thread.h>
-extern "C" int _thr_self(void);
-#endif
-
-#if defined(__linux)
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <string.h>
-#include <unistd.h>
-#endif
-
-#if defined(__APPLE__)
-#include <sys/types.h>
-#include <sys/sysctl.h>
-#endif
-
-#if defined(__sgi)
-#include <sys/types.h>
-#include <sys/sysmp.h>
-#include <sys/sysinfo.h>
-#endif
-
-#if defined(hpux)
-#include <sys/mpctl.h>
-#endif
-
-#if defined(_WIN32)
-extern __declspec(thread) int localThreadId;
-#endif
-
-#if defined(__SVR4) && defined(MAP_ALIGN)
-extern volatile int anyThreadStackCreated;
-#endif
-
-namespace HL {
-
-/**
- * @class CPUInfo
- * @author Emery Berger <http://www.cs.umass.edu/~emery>
- *
- * @brief Architecture-independent wrapper to get number of CPUs.
- */
-
-class CPUInfo {
-public:
- CPUInfo (void)
- {}
-
- inline static int getNumProcessors (void) {
- static int _numProcessors = computeNumProcessors();
- return _numProcessors;
- }
-
- static inline unsigned long getThreadId (void);
- inline static int computeNumProcessors (void);
-
-};
-
-
-int CPUInfo::computeNumProcessors (void)
-{
- static int np = 0;
- if (!np) {
-#if defined(__linux) || defined(__APPLE__)
- np = (int) sysconf(_SC_NPROCESSORS_ONLN);
-#elif defined(_WIN32)
- SYSTEM_INFO infoReturn[1];
- GetSystemInfo (infoReturn);
- np = (int) (infoReturn->dwNumberOfProcessors);
-#elif defined(__sgi)
- np = (int) sysmp(MP_NAPROCS);
-#elif defined(hpux)
- np = mpctl(MPC_GETNUMSPUS, NULL, NULL); // or pthread_num_processors_np()?
-#elif defined(_SC_NPROCESSORS_ONLN)
- np = (int) (sysconf(_SC_NPROCESSORS_ONLN));
-#else
- np = 2;
- // Unsupported platform.
- // Pretend we have at least two processors. This approach avoids the risk of assuming
- // we're on a uniprocessor, which might lead clever allocators to avoid using atomic
- // operations for all locks.
-#endif
- return np;
- } else {
- return np;
- }
-}
-
- // Note: when stacksize arg is NULL for pthread_attr_setstacksize [Solaris],
-// stack size is 1 MB for 32-bit arch, 2 MB for 64-bit arch.
-// pthread_attr_getstacksize
-// pthread_attr_setstackaddr
-// pthread_attr_getstackaddr
-// PTHREAD_STACK_SIZE is minimum.
-// or should we just assume we have __declspec(thread) or __thread?
-
-#if defined(USE_THREAD_KEYWORD)
- extern __thread int localThreadId;
-#endif
-
- // FIX ME FIXME
- //#include <stdio.h>
-
-unsigned long CPUInfo::getThreadId (void) {
-#if defined(__SVR4)
- size_t THREAD_STACK_SIZE;
- if (sizeof(size_t) <= 4) {
- THREAD_STACK_SIZE = 1048576;
- } else {
- // 64-bits.
- THREAD_STACK_SIZE = 1048576 * 2;
- }
- if (0) { // !anyThreadStackCreated) {
- // We know a priori that all stack variables
- // are on different stacks. Since no one has created
- // a special one, we are in control, and thus all stacks
- // are 1 MB in size and on 1 MB boundaries.
- // (Actually: 1 MB for 32-bits, 2 MB for 64-bits.)
- char buf;
- return (((size_t) &buf) & ~(THREAD_STACK_SIZE-1)) >> 20;
- } else {
- return (int) pthread_self();
- }
-#elif defined(_WIN32)
- // It looks like thread id's are always multiples of 4, so...
- return GetCurrentThreadId() >> 2;
-#elif defined(__APPLE__)
- // Consecutive thread id's in Mac OS are 4096 apart;
- // dividing off the 4096 gives us an appropriate thread id.
- int tid = (int) ((unsigned long) pthread_self()) >> 12;
- return tid;
-#elif defined(__BEOS__)
- return find_thread(0);
-#elif defined(USE_THREAD_KEYWORD)
- return localThreadId;
-#elif defined(__linux) || defined(PTHREAD_KEYS_MAX)
- // Consecutive thread id's in Linux are 1024 apart;
- // dividing off the 1024 gives us an appropriate thread id.
- return (unsigned long) pthread_self() >> 10;
-#elif defined(POSIX)
- return (unsigned long) pthread_self();
-#elif USE_SPROC
- // This hairiness has the same effect as calling getpid(),
- // but it's MUCH faster since it avoids making a system call
- // and just accesses the sproc-local data directly.
- unsigned long pid = (unsigned long) PRDA->sys_prda.prda_sys.t_pid;
- return pid;
-#else
- return 0;
-#endif
-}
-
-}
-
-#endif
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