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/*___INFO__MARK_BEGIN__*/
/*************************************************************************
*
* The Contents of this file are made available subject to the terms of
* the Sun Industry Standards Source License Version 1.2
*
* Sun Microsystems Inc., March, 2001
*
*
* Sun Industry Standards Source License Version 1.2
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.2 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://gridengine.sunsource.net/Gridengine_SISSL_license.html
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2001 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
************************************************************************/
/*___INFO__MARK_END__*/
#include "msg_utilib.h"
#include <unistd.h>
#if defined(DARWIN)
# include <mach/host_info.h>
# include <mach/mach_host.h>
# include <mach/mach_init.h>
# include <mach/machine.h>
#endif
#if defined(__sgi)
# include <sys/types.h>
# include <sys/sysmp.h>
#endif
#if defined(ALPHA)
# include <sys/sysinfo.h>
# include <machine/hal_sysinfo.h>
#endif
#if defined(__hpux)
/* needs to be copiled with std C compiler ==> no -Aa switch no gcc */
# include <stdlib.h>
# include <sys/pstat.h>
#endif
#if defined(FREEBSD)
# include <sys/types.h>
# include <sys/sysctl.h>
#endif
#ifdef NPROCS_TEST
# include <stdio.h>
#endif
#ifndef NPROCS_TEST
#include "sge_os.h"
#else
int sge_nprocs (void);
#endif
/****** uti/os/sge_nprocs() ***************************************************
* NAME
* sge_nprocs() -- Number of processors in this machine
*
* SYNOPSIS
* int sge_nprocs()
*
* FUNCTION
* Use this function to get the number of processors in
* this machine
*
* RESULT
* int - number of procs
*
* NOTES
* MT-NOTE: sge_nprocs() is MT safe (SOLARIS, NEC, IRIX, ALPHA, HPUX, LINUX)
******************************************************************************/
int sge_nprocs()
{
int nprocs=1; /* default */
#if defined(_SC_NPROCESSORS_ONLN) /* Solaris, AIX, Linux, NetBSD */
nprocs = sysconf(_SC_NPROCESSORS_ONLN);
#endif
#if defined(DARWIN)
struct host_basic_info cpu_load_data;
mach_msg_type_number_t host_count = sizeof(cpu_load_data)/sizeof(integer_t);
mach_port_t host_priv_port = mach_host_self();
host_info(host_priv_port, HOST_BASIC_INFO , (host_info_t)&cpu_load_data, &host_count);
nprocs = cpu_load_data.avail_cpus;
#endif
#ifdef __sgi
nprocs = sysmp(MP_NPROCS);
#endif
#if defined(ALPHA)
int start=0;
getsysinfo(GSI_CPUS_IN_BOX,(char*)&nprocs,sizeof(nprocs),&start);
#endif
#if defined(__hpux)
union pstun pstatbuf;
struct pst_dynamic dinfo;
pstatbuf.pst_dynamic = &dinfo;
if (pstat(PSTAT_DYNAMIC,pstatbuf,sizeof(dinfo),NULL,NULL)==-1) {
perror(MSG_PERROR_PSTATDYNAMIC);
exit(1);
}
nprocs = dinfo.psd_proc_cnt;
#endif
#if defined(FREEBSD)
size_t nprocs_len = sizeof(nprocs);
if (sysctlbyname("hw.ncpu", &nprocs, &nprocs_len, NULL, 0) == -1) {
nprocs = -1;
}
#endif
#if defined(INTERIX)
/* TODO: HP: don't set nprocs==-1 to 0, overwrite it with value from
* external load sensor.
*/
nprocs = -1;
#endif
if (nprocs <= 0) {
nprocs = 1;
}
return nprocs;
}
#ifdef NPROCS_TEST
void main(
int argc,
char **argv
) {
printf(MSG_INFO_NUMBOFPROCESSORS_I, sge_nprocs());
printf("\n");
exit(0);
}
#endif
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