setupenv.cpp File Reference

#include <map>
#include <string>
#include <sstream>
#include <cstdlib>

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Namespaces
	moose

Functions
const map< string, string > &	moose::getArgMap ()
unsigned	getNumCores ()

Function Documentation

unsigned getNumCores

(

)

Definition at line 93 of file main.cpp.

Referenced by moose::getArgMap(), and init().

{
    unsigned int numCPU = 0;
#ifdef WIN_32
    SYSTEM_INFO sysinfo;
    GetSystemInfo( &sysinfo );

    numCPU = sysinfo.dwNumberOfProcessors;
#endif

#ifdef LINUX
    numCPU = sysconf( _SC_NPROCESSORS_ONLN );
#endif

#ifdef MACOSX
    int mib[4];
    size_t len = sizeof(numCPU);

    /* set the mib for hw.ncpu */
    mib[0] = CTL_HW;
    mib[1] = HW_AVAILCPU;  // alternatively, try HW_NCPU;

    /* get the number of CPUs from the system */
    sysctl(mib, 2, &numCPU, &len, NULL, 0);

    if( numCPU < 1 )
    {
        mib[1] = HW_NCPU;
        sysctl( mib, 2, &numCPU, &len, NULL, 0 );
    }
#endif
    if ( numCPU < 1 )
    {
        cout << "No CPU information available. Assuming single core." << endl;
        numCPU = 1;
    }
    return numCPU;
}

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