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sysinfofuncs.c
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sysinfofuncs.c
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/* ----------------------------------------------------------------------
*
* coNCePTuaL run-time library:
* internal functions for acquiring system information
*
* By Scott Pakin <pakin@lanl.gov>
*
* ----------------------------------------------------------------------
*
*
* Copyright (C) 2003, Triad National Security, LLC
* All rights reserved.
*
* Copyright (2003). Triad National Security, LLC. This software
* was produced under U.S. Government contract 89233218CNA000001 for
* Los Alamos National Laboratory (LANL), which is operated by Los
* Alamos National Security, LLC (Triad) for the U.S. Department
* of Energy. The U.S. Government has rights to use, reproduce,
* and distribute this software. NEITHER THE GOVERNMENT NOR TRIAD
* MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR ASSUMES ANY LIABILITY
* FOR THE USE OF THIS SOFTWARE. If software is modified to produce
* derivative works, such modified software should be clearly marked,
* so as not to confuse it with the version available from LANL.
*
* Additionally, redistribution and use in source and binary forms,
* with or without modification, are permitted provided that the
* following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of Triad National Security, LLC, Los Alamos
* National Laboratory, the U.S. Government, nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TRIAD AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL TRIAD OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* ----------------------------------------------------------------------
*/
#include "runtimelib.h"
/**********
* Macros *
**********/
/* For convenience, combine multiple #if checks into one. */
#if defined(HAVE_INVENT_H) && defined(HAVE_GETINVENT)
# define GETINVENT_OKAY
#endif
#if defined(HAVE_SYS_SYSMP_H) && defined(HAVE_SYSMP)
# define SYSMP_OKAY
#endif
/* Assign a variable unless it's already been assigned. */
#define ASSIGN(LHS,RHS) LHS = (LHS) ? (LHS) : (RHS)
/************************************
* Imported variables and functions *
************************************/
extern char *ncptl_concatenate_strings (ncptl_int numstrings, ...);
extern int ncptl_fork_works;
/************************************
* Internal variables and functions *
************************************/
#ifdef HAVE_BGLPERSONALITY
/* Store the personality of the BG/L partition. */
BGLPersonality ncptl_bgl_personality;
#endif
#ifdef HAVE_BGPPERSONALITY
/* Store the personality of the BG/P partition. */
_BGP_Personality_t ncptl_bgp_personality;
#endif
#ifdef HAVE_PCIUTILS
/* Note if an error occurred while processing the PCI bus. */
int pciutils_error = 0;
#endif
/* Given a "key : value\n" string, copy and return key. */
static char *extract_key (char *key_value)
{
char *eos;
char *result = ncptl_strdup (key_value);
for (eos=strchr(result, ':'); eos>=result && isspace((int)eos[-1]); eos--)
eos[-1] = '\0';
return result;
}
/* Given a "key : value\n" string, copy and return value. */
static char *extract_value (char *key_value)
{
char *colonptr = strchr (key_value, ':');
char *result = ncptl_strdup (colonptr+2);
result[strlen(result)-1] = '\0'; /* Remove the newline character */
return result;
}
/* Read and return the first NCPTL_MAX_LINE_LEN bytes of a given file
* or NULL on failure. If is_binary is set, do no extra processing.
* If is_binary is not set, truncate the text at the first newline
* character. */
static char *read_first_line (char *filename, int is_binary)
{
FILE *fh;
char *oneline;
char *c;
if (!(fh = fopen(filename, is_binary ? "rb" : "r")))
return NULL;
oneline = ncptl_malloc(NCPTL_MAX_LINE_LEN+1, 0);
memset(oneline, 0, NCPTL_MAX_LINE_LEN+1);
if (fread(oneline, 1, NCPTL_MAX_LINE_LEN, fh) == 0) {
/* Treat a read of zero bytes as a failure. */
fclose(fh);
ncptl_free(oneline);
return NULL;
}
fclose(fh);
if (!is_binary) {
for (c=oneline; *c != '\n' && *c != '\r' && *c != '\0'; c++)
;
*c = '\0'; /* Safe because we allocated N+1 bytes but read only N */
oneline = ncptl_realloc (oneline, c-oneline+1, 0);
}
return oneline;
}
#ifdef HAVE_SYSCTL
# ifdef CTL_HW
/* Return the value of an integer sysctl variable. */
static unsigned int get_sysctl_int (int category, int variable)
{
int mib[2];
unsigned int result = 0;
size_t intsize = sizeof(unsigned int);
mib[0] = category;
mib[1] = variable;
(void) sysctl (mib, 2, (void *)&result, &intsize, NULL, 0);
return result;
}
#endif
# if defined(CTL_KERN) || defined(CTL_HW)
/* Return the value of a string sysctl variable. The caller must
* ncptl_free() the result. */
static char *get_sysctl_string (int category, int variable)
{
int mib[2];
char resultstr[NCPTL_MAX_LINE_LEN];
size_t stringsize = NCPTL_MAX_LINE_LEN;
mib[0] = category;
mib[1] = variable;
if (!sysctl (mib, 2, (void *)resultstr, &stringsize, NULL, 0))
return ncptl_strdup (resultstr);
else
return NULL;
}
# endif
#endif
#ifdef HAVE_HAL
/* Connect to the HAL daemon and read a property string from it. The
* caller must ncptl_free() the result. NULL is returned if the UDI
* or property is unavailable. */
static char *get_hal_property_string (const char *udi, const char *propname)
{
LibHalContext *hal_ctx; /* HAL context */
DBusConnection *conn; /* Connection to the DBus */
DBusError errval; /* Error value returned from the dbus library */
char *propvalue; /* Value corresponding to {uid, propname} */
char *propvaluecopy; /* Copy of the above to return to the user */
/* Connect to the DBus. */
dbus_error_init (&errval);
if (!(conn=dbus_bus_get(DBUS_BUS_SYSTEM, &errval))) {
if (dbus_error_is_set (&errval))
dbus_error_free (&errval);
return NULL;
}
/* Create a HAL context (which implies connecting to the HAL daemon). */
if (!(hal_ctx=libhal_ctx_new()))
return NULL;
if (!libhal_ctx_set_dbus_connection(hal_ctx, conn))
return NULL;
if (!libhal_ctx_init(hal_ctx, &errval)) {
if (dbus_error_is_set (&errval))
dbus_error_free (&errval);
return NULL;
}
/* Query HAL for the property. */
propvalue = libhal_device_get_property_string (hal_ctx, udi, propname, &errval);
if (!propvalue) {
if (dbus_error_is_set (&errval))
dbus_error_free (&errval);
return NULL;
}
propvaluecopy = ncptl_strdup (propvalue);
libhal_free_string (propvalue);
/* Destroy our HAL context. */
libhal_ctx_shutdown (hal_ctx, &errval);
libhal_ctx_free (hal_ctx);
/* Disconnect from the DBus. */
dbus_connection_unref (conn);
dbus_error_free (&errval);
/* Return the coNCePTuaL-allocated string. */
return propvaluecopy;
}
/* Fill in various pieces of system information using HAL. */
static void fill_in_sys_desc_hal (SYSTEM_INFORMATION *info)
{
const char *computer_udi = "/org/freedesktop/Hal/devices/computer";
/* Try to read the computer make and model information. */
if (!info->computer) {
char *vendor;
char *product;
/* Read the computer vendor and product. */
vendor = get_hal_property_string(computer_udi, "system.vendor");
product = get_hal_property_string(computer_udi, "system.product");
info->computer = ncptl_concatenate_strings (2, vendor, product);
ncptl_free (vendor);
ncptl_free (product);
}
/* Try to read the BIOS vendor and version. */
if (!info->bios) {
char *vendor;
char *version;
char *release_date;
vendor = get_hal_property_string(computer_udi, "smbios.bios.vendor");
version = get_hal_property_string(computer_udi, "smbios.bios.version");
release_date = get_hal_property_string(computer_udi, "smbios.bios.release_date");
info->bios = ncptl_concatenate_strings (3, vendor, version, release_date);
ncptl_free (vendor);
ncptl_free (version);
ncptl_free (release_date);
}
}
#endif
/* Fill in the name of the OS distribution if possible. */
static void fill_in_osdist (SYSTEM_INFORMATION *info)
{
/* Run the lsb_release script to determine the OS distribution. */
#if defined(HAVE_POPEN)
/* popen() uses fork() which may not work properly. */
if (ncptl_fork_works) {
FILE *lsb_pipe; /* Pipe from "lsb_release" */
char oneline[NCPTL_MAX_LINE_LEN]; /* One line read from lsb_pipe */
if ((lsb_pipe=popen("lsb_release -d 2>&1", "r"))) {
while (fgets (oneline, NCPTL_MAX_LINE_LEN-1, lsb_pipe))
if (!strncmp (oneline, "Description:", 12)) {
ASSIGN (info->osdist, ncptl_strdup (oneline+13));
break;
}
pclose(lsb_pipe);
}
}
if (info->osdist)
return;
#endif
/* Read the distribution from *-release (fedora-release,
* redhat-release, system-release, etc.). This is of course a bit
* risky because there may happen to be a binary *-release file in
* /etc. We simply take our chances and hope for the best. */
#ifdef HAVE_GLOB
if (1) {
glob_t globinfo; /* Information about the expanded pathname */
unsigned int i;
if (glob("/etc/*-release", 0, NULL, &globinfo) == 0) {
/* Iterate over each filename in turn. */
for (i=0; i<globinfo.gl_pathc && !info->osdist; i++)
ASSIGN (info->osdist, read_first_line(globinfo.gl_pathv[i], 0));
globfree(&globinfo);
}
}
#endif
}
/* Fill in the host, arch, os, osdist, and computer fields. */
static void fill_in_sys_desc (SYSTEM_INFORMATION *info)
{
#if defined(HAVE_UNAME) && defined(HAVE_SYS_UTSNAME_H)
struct utsname hostinfo; /* Various bit of description */
#endif
#ifdef HOST_NAME_MAX_VAR
char thishostname[HOST_NAME_MAX_VAR+1]; /* Host name only */
#endif
/* If we have /proc/version, try reading the OS version from there. */
if (!info->os)
info->os = read_first_line ("/proc/version", 0);
/* Try to determine the name of the OS distribution. */
fill_in_osdist(info);
#if defined(HAVE_SYSCTL) && defined(CTL_KERN) && defined(KERN_VERSION)
/* sysctl() can return the full OS name at times when uname() can't. */
ASSIGN (info->os, get_sysctl_string (CTL_KERN, KERN_VERSION));
#endif
#if defined(HAVE_UNAME) && defined(HAVE_SYS_UTSNAME_H)
if (uname (&hostinfo) != -1) {
ASSIGN (info->hostname, ncptl_strdup (hostinfo.nodename));
ASSIGN (info->arch, ncptl_strdup (hostinfo.machine));
if (!info->os) {
info->os = (char *) ncptl_malloc (strlen(hostinfo.sysname) + 1 +
strlen(hostinfo.release) + 1 +
strlen(hostinfo.version) + 1,
0);
sprintf (info->os, "%s %s %s",
hostinfo.sysname, hostinfo.release, hostinfo.version);
}
}
#endif
#ifdef HOST_NAME_MAX_VAR
if (!gethostname (thishostname, HOST_NAME_MAX_VAR))
ASSIGN (info->hostname, ncptl_strdup (thishostname));
#endif
if (info->hostname && info->hostname[0]=='\0') {
/* At the time of this writing, BlueGene/L returns an empty hostname. */
ncptl_free (info->hostname);
info->hostname = NULL;
ASSIGN (info->hostname, ncptl_strdup ("unknown"));
}
/* Try to replace the host name with a more "official" host name. */
if (info->hostname) {
#ifdef HAVE_GETADDRINFO
struct addrinfo hints;
struct addrinfo *thishostinfo;
memset (&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_flags = AI_CANONNAME;
if (getaddrinfo(info->hostname, NULL, &hints, &thishostinfo) == 0 &&
thishostinfo->ai_canonname && thishostinfo->ai_canonname[0] != '\0') {
ncptl_free (info->hostname);
info->hostname = ncptl_strdup (thishostinfo->ai_canonname);
}
#elif defined(HAVE_GETHOSTBYNAME)
struct hostent *thishostinfo = gethostbyname (info->hostname);
if (thishostinfo && thishostinfo->h_name && thishostinfo->h_name[0] != '\0') {
ncptl_free (info->hostname);
info->hostname = ncptl_strdup (thishostinfo->h_name);
}
#endif
}
#ifdef HAVE_HAL
fill_in_sys_desc_hal (info);
#endif
}
#ifdef USE_PAPI
/* Fill in the CPU-related fields using PAPI. */
static void fill_in_cpu_info_PAPI (SYSTEM_INFORMATION *info)
{
const PAPI_hw_info_t *hardwareinfo; /* Hardware (mostly CPU) information */
if ((hardwareinfo=PAPI_get_hardware_info())) {
ASSIGN (info->contexts_per_node, hardwareinfo->ncpu);
ASSIGN (info->cpu_vendor, ncptl_strdup (hardwareinfo->vendor_string));
ASSIGN (info->cpu_model, ncptl_strdup (hardwareinfo->model_string));
ASSIGN (info->cpu_freq, 1.0e6 * hardwareinfo->mhz);
}
}
#endif
#if defined(HAVE_SYSCTL) && defined(CTL_HW)
/* Fill in the CPU-related fields using sysctl(). */
static void fill_in_cpu_info_sysctl (SYSTEM_INFORMATION *info)
{
/* CPU speed */
#ifdef HW_NCPU
ASSIGN (info->contexts_per_node, (int) get_sysctl_int (CTL_HW, HW_NCPU));
#endif
#ifdef HW_MODEL
ASSIGN (info->cpu_model, get_sysctl_string (CTL_HW, HW_MODEL));
#endif
#ifdef HW_CPU_FREQ
ASSIGN (info->cpu_freq, (double) get_sysctl_int (CTL_HW, HW_CPU_FREQ));
#endif
#ifdef HW_CPUSPEED
ASSIGN (info->cpu_freq, 1.0e6 * get_sysctl_int (CTL_HW, HW_CPUSPEED));
#endif
/* Cycle-counter speed */
#ifdef HW_TB_FREQ
ASSIGN (info->timer_freq, (double) get_sysctl_int (CTL_HW, HW_TB_FREQ));
#endif
/* Keep compilers from complaining about unused info */
if (0)
printf ("%p", info);
}
#endif
/* Fill in the CPU-related fields using sysconf(). */
#ifdef HAVE_SYSCONF
static void fill_in_cpu_info_sysconf (SYSTEM_INFORMATION *info)
{
# ifdef _SC_NPROCESSORS_ONLN
/* Note that we store the number of processors online instead of the
* number of processors configured. The idea is to help detect poor
* performance caused by unexpected multiprogramming when a CPU is
* offline. */
if (sysconf(_SC_NPROCESSORS_ONLN) > 0)
ASSIGN (info->contexts_per_node, (int) sysconf(_SC_NPROCESSORS_ONLN));
#else
/* Keep compilers from complaining about unused info */
if (0)
printf ("%p", info);
# endif
}
#endif
#ifdef HAVE_KSTAT_DATA_LOOKUP
/* Fill in the CPU-related fields using kstat_data_lookup(). */
static void fill_in_cpu_info_kstat (SYSTEM_INFORMATION *info)
{
kstat_ctl_t *kcontrol; /* kstat control */
kstat_t *thekstat; /* The kstat itself */
kstat_named_t *kstatdata; /* Value encountered */
/* Open the kernel statistics. */
if (!(kcontrol=kstat_open()))
return;
/* CPU model and frequency */
if (!info->cpu_model &&
(thekstat=kstat_lookup(kcontrol, "cpu_info", -1, "cpu_info0")) &&
(kstat_read(kcontrol, thekstat, NULL) != -1)) {
/* CPU model */
if ((kstatdata=(kstat_named_t *)kstat_data_lookup (thekstat, "cpu_type")) &&
kstatdata->data_type == KSTAT_DATA_CHAR)
ASSIGN (info->cpu_model, ncptl_strdup (kstatdata->value.c));
/* CPU frequency */
if ((kstatdata=(kstat_named_t *)kstat_data_lookup (thekstat, "clock_MHz")) &&
kstatdata->data_type == KSTAT_DATA_INT32)
ASSIGN (info->cpu_freq, 1.0e6 * kstatdata->value.i32);
}
/* Number of CPUs */
if (!info->contexts_per_node &&
(thekstat=kstat_lookup(kcontrol, "unix", -1, "system_misc")) &&
(kstat_read(kcontrol, thekstat, NULL) != -1)) {
if ((kstatdata=(kstat_named_t *)kstat_data_lookup (thekstat, "ncpus")) &&
kstatdata->data_type == KSTAT_DATA_UINT32)
ASSIGN (info->contexts_per_node, (int)kstatdata->value.ui32);
}
/* Close the kernel statistics. */
(void) kstat_close (kcontrol);
}
#endif
#ifdef HAVE_BGPPERSONALITY
/* Fill in the CPU-related fields using BG/P's Kernel_GetPersonality(). */
static void fill_in_cpu_info_bgp (SYSTEM_INFORMATION *info)
{
ASSIGN (info->cpu_freq, ncptl_bgp_personality.Kernel_Config.FreqMHz*1e6);
}
#endif
#ifdef HAVE_BGLPERSONALITY
/* Fill in the CPU-related fields using BG/L's rts_get_personality(). */
static void fill_in_cpu_info_bgl (SYSTEM_INFORMATION *info)
{
ASSIGN (info->cpu_freq, (double) BGLPersonality_clockHz(&ncptl_bgl_personality));
ASSIGN (info->contexts_per_node,
BGLPersonality_virtualNodeMode(&ncptl_bgl_personality) ? 2 : 1);
}
#endif
#ifdef HAVE___CPU_MHZ
/* Fill in the clock speed using the Cray XT's __cpu_mhz variable. */
static void fill_in_cpu_info_xt (SYSTEM_INFORMATION *info)
{
extern uint32_t __cpu_mhz;
ASSIGN (info->cpu_freq, 1e6 * __cpu_mhz);
}
#endif
#if defined(SYSMP_OKAY) && defined(MP_NPROCS)
/* Fill in the CPU-related fields using IRIX and UNICOS's sysmp(). */
static void fill_in_cpu_info_sysmp (SYSTEM_INFORMATION *info)
{
int64_t numcpus = (int64_t) sysmp (MP_NPROCS);
if (numcpus > 0)
ASSIGN (info->contexts_per_node, numcpus);
}
#endif
#ifdef GETINVENT_OKAY
/* Fill in the CPU-related fields using SGI and Cray's getinvent(). */
static void fill_in_cpu_info_getinvent (SYSTEM_INFORMATION *info)
{
inventory_t *invitem;
setinvent();
while ((invitem=getinvent()))
if (invitem->inv_class==INV_PROCESSOR && invitem->inv_type==INV_CPUBOARD)
ASSIGN (info->cpu_freq, 1e6 * (double) invitem->inv_controller);
}
#endif
#if defined(HAVE_SYS_SYSINFO_H) && defined(GSI_CPU_INFO)
/* Fill in the CPU-related fields using OSF1's getsysinfo(). */
static void fill_in_cpu_info_getsysinfo (SYSTEM_INFORMATION *info)
{
struct cpu_info CPU_information;
int startloc = 0;
if (getsysinfo (GSI_CPU_INFO, (caddr_t)&CPU_information,
sizeof(CPU_information), &startloc, NULL, NULL) >= -1) {
ASSIGN (info->contexts_per_node, CPU_information.cpus_in_box);
ASSIGN (info->cpu_freq, 1e6 * (double) CPU_information.mhz);
}
}
#endif
#ifdef ODM_IS_SUPPORTED
/* Fill in the CPU-related fields using AIX's Object Data Manager. */
static void fill_in_cpu_info_odm (SYSTEM_INFORMATION *info)
{
struct CuAt *cuat_info;
int num_instances;
if (odm_initialize())
return;
if (!info->cpu_freq && (cuat_info=getattr ("proc0", "frequency", 0, &num_instances)))
sscanf (cuat_info->value, "%lf", &info->cpu_freq);
if ((cuat_info=getattr ("proc0", "type", 0, &num_instances)))
ASSIGN (info->cpu_model, ncptl_strdup (cuat_info->value));
if (!info->threads_per_core && (cuat_info=getattr ("proc0", "smt_threads", 0, &num_instances)))
sscanf (cuat_info->value, "%d", &info->threads_per_core);
(void) odm_terminate();
}
#endif
#ifdef _WIN32
/* Fill in the CPU-related fields using Win32 functions. */
static void fill_in_cpu_info_win32 (SYSTEM_INFORMATION *info)
{
LARGE_INTEGER timerfreq;
SYSTEM_INFO sysinfo;
MEMORYSTATUSEX meminfo;
OSVERSIONINFOEX osinfo;
HKEY cpukey;
/* Read the timer frequency. */
if (QueryPerformanceFrequency(&timerfreq))
ASSIGN (info->timer_freq, (double)timerfreq.QuadPart);
/* Store both the fully-qualified DNS name and the NetBIOS name. */
if (!info->hostname) {
char hostname[NCPTL_MAX_LINE_LEN];
DWORD namelen;
namelen = NCPTL_MAX_LINE_LEN;
if (GetComputerNameA (hostname, &namelen)) {
info->hostname = (char *) ncptl_malloc (NCPTL_MAX_LINE_LEN, 0);
strcpy (info->hostname, hostname);
namelen = NCPTL_MAX_LINE_LEN;
if (GetComputerNameExA (ComputerNamePhysicalDnsFullyQualified, hostname, &namelen))
sprintf (info->hostname + strlen(info->hostname), " (%s)", hostname);
info->hostname = ncptl_realloc (info->hostname, strlen(info->hostname)+1, 0);
}
}
/* Get information about the CPU and memory system. */
GetSystemInfo (&sysinfo);
ASSIGN (info->pagesize, (uint64_t)sysinfo.dwPageSize);
ASSIGN (info->contexts_per_node, (uint64_t)sysinfo.dwNumberOfProcessors);
if (!info->arch)
switch (sysinfo.wProcessorArchitecture) {
case PROCESSOR_ARCHITECTURE_INTEL:
info->arch = (char *) ncptl_malloc (NCPTL_MAX_LINE_LEN, 0);
if (sysinfo.wProcessorLevel < 10)
sprintf (info->arch, "i%d86", sysinfo.wProcessorLevel);
else if (sysinfo.wProcessorLevel == 15)
sprintf (info->arch, "i686");
else
sprintf (info->arch, "Intel processor level %d", sysinfo.wProcessorLevel);
info->arch = ncptl_realloc (info->arch, strlen(info->arch)+1, 0);
break;
case PROCESSOR_ARCHITECTURE_IA64:
info->arch = "ia64";
break;
case PROCESSOR_ARCHITECTURE_AMD64:
info->arch = "x86_64";
break;
default:
break;
}
meminfo.dwLength = sizeof (MEMORYSTATUSEX);
GlobalMemoryStatusEx (&meminfo);
ASSIGN (info->physmem, (uint64_t)meminfo.ullTotalPhys);
/* Get more information about the CPU by reading the Windows registry. */
if (RegOpenKeyEx (HKEY_LOCAL_MACHINE,
"Hardware\\Description\\System\\CentralProcessor\\0",
0, KEY_READ, &cpukey) == ERROR_SUCCESS) {
char buffer[NCPTL_MAX_LINE_LEN];
DWORD bufferlen;
/* Processor description */
bufferlen = NCPTL_MAX_LINE_LEN;
if (!info->cpu_model &&
RegQueryValueEx (cpukey, "ProcessorNameString", NULL, NULL,
buffer, &bufferlen) == ERROR_SUCCESS)
ASSIGN (info->cpu_model, ncptl_strdup(buffer));
/* Vendor identifier */
bufferlen = NCPTL_MAX_LINE_LEN;
if (!info->cpu_vendor &&
RegQueryValueEx (cpukey, "VendorIdentifier", NULL, NULL,
buffer, &bufferlen) == ERROR_SUCCESS)
ASSIGN (info->cpu_vendor, ncptl_strdup(buffer));
/* CPU frequency */
bufferlen = NCPTL_MAX_LINE_LEN;
if (!info->cpu_freq &&
RegQueryValueEx (cpukey, "~MHz", NULL, NULL,
buffer, &bufferlen) == ERROR_SUCCESS)
ASSIGN (info->cpu_freq, 1.0e6 * (double)*(DWORD *)buffer);
/* We're finished with the CPU registry key. */
(void) RegCloseKey (cpukey);
}
/* Pretty-print the version of Windows that the user is running. */
if (!info->os) {
osinfo.dwOSVersionInfoSize = sizeof (OSVERSIONINFOEX);
if (GetVersionEx ((LPOSVERSIONINFO) &osinfo)) {
DWORD majver = osinfo.dwMajorVersion;
DWORD minver = osinfo.dwMinorVersion;
char *osstring = NULL;
info->os = (char *) ncptl_malloc (NCPTL_MAX_LINE_LEN, 0);
sprintf (info->os, "Microsoft Windows ");
if (majver == 6)
osstring = "Vista";
else if (majver == 5) {
if (minver == 2)
osstring = "Server 2003";
else if (minver == 1)
osstring = "XP";
else if (minver == 0)
osstring = "2000";
}
else if (majver == 4)
osstring = "NT 4";
if (osstring)
strcat (info->os, osstring);
else
sprintf (info->os + strlen(info->os),
"(unrecognized version %d.%d)",
majver, minver);
if (osinfo.szCSDVersion[0]) {
strcat (info->os, " ");
strcat (info->os, osinfo.szCSDVersion);
}
sprintf (info->os + strlen(info->os), " (Build %u)", osinfo.dwBuildNumber);
info->os = ncptl_realloc (info->os, strlen(info->os)+1, 0);
}
}
}
#endif
/* Fill in the CPU-related fields by reading /proc/cpuinfo. */
static void fill_in_cpu_info_cpuinfo (SYSTEM_INFORMATION *info)
{
FILE *procinfo; /* Handle to /proc/cpuinfo */
char oneline[NCPTL_MAX_LINE_LEN+1]; /* One line read from /proc/cpuinfo */
double frequency; /* CPU or timer frequency */
int cpucount; /* Number of active CPU cores */
int have_ncpus = info->contexts_per_node!=0; /* 1=already assigned the total number of CPU cores */
int cpu_cores; /* Number of CPU cores per socket */
int physical_id; /* Physical ID of the current socket */
int min_physical_id = 1<<30; /* Minimum physical ID encountered (typically 0, sometimes 1, have yet to see anything else */
char *cpu_family = NULL; /* CPU family name */
char *cpu_model = NULL; /* CPU model number */
char *cpu_revision = NULL; /* CPU revision number */
/* Read interesting information from /proc/cpuinfo. */
if (!(procinfo=fopen ("/proc/cpuinfo", "r")))
return;
while (fgets (oneline, NCPTL_MAX_LINE_LEN, procinfo)) {
char *keyname = extract_key (oneline);
/* CPU speed */
if (!info->cpu_freq) {
/* IA-32 and IA-64 */
if (sscanf (oneline, "cpu MHz : %lf", &frequency))
ASSIGN (info->cpu_freq, 1.0e6 * frequency);
/* PowerPC */
else if (sscanf (oneline, "clock : %lfMHz", &frequency))
ASSIGN (info->cpu_freq, 1.0e6 * frequency);
else if (sscanf (oneline, "clock : %lfGHz", &frequency))
ASSIGN (info->cpu_freq, 1.0e9 * frequency);
/* Alpha */
else if (sscanf (oneline, "cycle frequency [Hz] : %lf", &frequency))
ASSIGN (info->cpu_freq, frequency);
}
/* CPU model */
if (!info->cpu_model) {
/* IA-32 */
if (!strcmp (keyname, "model name"))
ASSIGN (info->cpu_model, extract_value (oneline));
/* PowerPC */
else if (!strcmp (keyname, "cpu"))
ASSIGN (info->cpu_model, extract_value (oneline));
/* IA-64 */
else if (!strcmp (keyname, "family")) {
char *firstbad; /* Pointer to first nonnumeric character */
cpu_family = extract_value (oneline);
errno = 0;
(void) strtoull (cpu_family, &firstbad, 10);
if (*firstbad == '\0') {
/* Family is entirely numeric -- prefix with the word "Family". */
char cpu_family_string[NCPTL_MAX_LINE_LEN];
sprintf (cpu_family_string, "family %s", cpu_family);
ncptl_free (cpu_family);
cpu_family = ncptl_strdup (cpu_family_string);
}
}
else if (!strcmp (keyname, "model"))
cpu_model = extract_value (oneline);
else if (!strcmp (keyname, "revision"))
cpu_revision = extract_value (oneline);
if (cpu_family && cpu_model && cpu_revision) {
char cpu_description[NCPTL_MAX_LINE_LEN];
sprintf (cpu_description, "%s, model %s, revision %s",
cpu_family, cpu_model, cpu_revision);
info->cpu_model = ncptl_strdup (cpu_description);
}
}
else
/* Alpha defines both "cpu" and "cpu model"; we want only the latter. */
if (!strcmp (keyname, "cpu model")) {
if (info->cpu_model) {
ncptl_free (info->cpu_model);
info->cpu_model = NULL;
}
ASSIGN (info->cpu_model, extract_value (oneline));
}
/* CPU vendor */
if (!info->cpu_vendor) {
/* IA-32 */
if (!strcmp (keyname, "vendor_id"))
ASSIGN (info->cpu_vendor, extract_value (oneline));
/* IA-64 */
else if (!strcmp (keyname, "vendor"))
ASSIGN (info->cpu_vendor, extract_value (oneline));
}
/* Total number of CPU compute contexts (threads*cores*dies*sockets) */
/* IA-32, IA-64, and PowerPC */
if (!have_ncpus && !strcmp (keyname, "processor"))
info->contexts_per_node++;
/* Alpha */
else if (sscanf (oneline, "cpus active : %d", &cpucount))
ASSIGN (info->contexts_per_node, cpucount);
/* Cycle-counter speed */
/* IA-64 */
if (sscanf (oneline, "itc MHz : %lf", &frequency))
ASSIGN (info->timer_freq, 1.0e6 * frequency);
/* PowerPC */
else if (sscanf (oneline, "timebase : %lf", &frequency))
ASSIGN (info->timer_freq, frequency);
/* Number of sockets and cores */
if (sscanf (oneline, "cpu cores : %d", &cpu_cores))
ASSIGN(info->cores_per_socket, cpu_cores);
if (sscanf (oneline, "physical id : %d", &physical_id)) {
if (physical_id + 1 > info->sockets_per_node)
info->sockets_per_node = physical_id + 1;
if (physical_id < min_physical_id)
min_physical_id = physical_id;
}
/* CPU flags */
if (!strcmp (keyname, "flags"))
ASSIGN (info->cpu_flags, extract_value (oneline));
/* Clean up before the next iteration. */
ncptl_free (keyname);
}
fclose (procinfo);
/* Adjust the socket count based on the minimum ID encountered. */
if (info->sockets_per_node)
info->sockets_per_node -= min_physical_id;
/* Clean up any memory we may have allocated. */
ncptl_free (cpu_family);
ncptl_free (cpu_model);
ncptl_free (cpu_revision);
}
/* Fill in the CPU-related fields by reading files under /sys. */
static void fill_in_cpu_info_sysfs (SYSTEM_INFORMATION *info)
{
char *maxfreq_str; /* Maximum CPU frequency in KHz as a text string */
double maxfreq; /* Maximum CPU frequency in KHz */
/* As a last-ditch effort to find the timebase frequency, use the
* highest frequency at which the CPU can run. This is probably a
* decent guess but is not guaranteed to return the correct
* timebase. Alas, reading the correct value from the x86 MSRs can
* currently be done only from kernel mode. */
if (info->timer_freq)
return;
maxfreq_str = read_first_line ("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq", 0);
if (!maxfreq_str)
return;
if (sscanf (maxfreq_str, "%lf", &maxfreq) == 1)
ASSIGN (info->timer_freq, maxfreq*1000.0);
ncptl_free (maxfreq_str);
}
/* Fill in all of the the CPU-related fields. */
static void fill_in_cpu_info (SYSTEM_INFORMATION *info)
{
#ifdef CYCLES_PER_USEC
ASSIGN (info->timer_freq, 1.0e6 * CYCLES_PER_USEC);
#endif
fill_in_cpu_info_cpuinfo (info);
#ifdef USE_PAPI
fill_in_cpu_info_PAPI (info);
#endif
#ifdef HAVE_BGPPERSONALITY
fill_in_cpu_info_bgp (info);
#endif
#ifdef HAVE_BGLPERSONALITY
fill_in_cpu_info_bgl (info);
#endif
#ifdef HAVE___CPU_MHZ
fill_in_cpu_info_xt (info);
#endif
#ifdef ODM_IS_SUPPORTED
fill_in_cpu_info_odm (info);
#endif
#ifdef SYSMP_OKAY
fill_in_cpu_info_sysmp (info);
#endif
#ifdef GETINVENT_OKAY
fill_in_cpu_info_getinvent (info);
#endif
#if defined(HAVE_SYS_SYSINFO_H) && defined(GSI_CPU_INFO)
fill_in_cpu_info_getsysinfo (info);
#endif
#if defined(HAVE_SYSCTL) && defined(CTL_HW)
fill_in_cpu_info_sysctl (info);
#endif
#ifdef HAVE_SYSCONF
fill_in_cpu_info_sysconf (info);
#endif
#ifdef HAVE_KSTAT_DATA_LOOKUP
fill_in_cpu_info_kstat (info);
#endif
#ifdef _WIN32
fill_in_cpu_info_win32 (info);
#endif
#if defined(TIMEBASE_FREQUENCY_FILENAME)
if (!info->timer_freq) {
char *timebase_bits;
timebase_bits = read_first_line (TIMEBASE_FREQUENCY_FILENAME, 1);
if (timebase_bits) {
ASSIGN (info->timer_freq, *(double *)timebase_bits);
ncptl_free (timebase_bits);
}
}
#endif
fill_in_cpu_info_sysfs (info);
/* If contexts_per_node is 1, then cores_per_socket,
* sockets_per_node, and threads_per_core must all also be 1. */
if (info->contexts_per_node == 1) {
ASSIGN(info->cores_per_socket, 1);
ASSIGN(info->sockets_per_node, 1);
ASSIGN(info->threads_per_core, 1);
}
/* If we know contexts_per_node, cores_per_socket, and
* sockets_per_node, we can easily compute threads_per_core if
* necessary. */
if (info->contexts_per_node
&& info->cores_per_socket
&& info->sockets_per_node
&& !info->threads_per_core)
info->threads_per_core =
info->contexts_per_node / (info->cores_per_socket * info->sockets_per_node);
}
/* Fill in all of the memory-related fields. */
static void fill_in_mem_info (SYSTEM_INFORMATION *info)
{
/* OS page size */
#ifdef OS_PAGE_SIZE
ASSIGN (info->pagesize, (uint64_t) OS_PAGE_SIZE);
#else
# if defined(HAVE_SYSCONF) && defined(_SC_PAGESIZE)
if (sysconf(_SC_PAGESIZE) > 0)
ASSIGN (info->pagesize, (uint64_t) sysconf(_SC_PAGESIZE));
# endif
# if defined(HAVE_SYSCONF) && defined(_SC_PAGE_SIZE)
if (sysconf(_SC_PAGE_SIZE) > 0)
ASSIGN (info->pagesize, (uint64_t) sysconf(_SC_PAGE_SIZE));
# endif
# if defined(HAVE_GETPAGESIZE)
ASSIGN (info->pagesize, (uint64_t) getpagesize());
# endif
#endif
/* Physical memory */
#if defined(HAVE_BGPPERSONALITY)
ASSIGN (info->physmem, (uint64_t) ncptl_bgp_personality.DDR_Config.DDRSizeMB*1048576);
#endif
#if defined(HAVE_BGLPERSONALITY)
ASSIGN (info->physmem, (uint64_t) BGLPersonality_DDRSize(&ncptl_bgl_personality));
#endif