pin_thread_to_core.h File Reference

#include <stdio.h>
#include <stdlib.h>

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Macros
#define	PIN_THREAD_TO_CORE   if(!pinThreadToCore())exit(1);

Functions
bool	pinThreadToCore ()
	Pins the current thread to the current core.

Macro Definition Documentation

PIN_THREAD_TO_CORE

#define PIN_THREAD_TO_CORE   if(!pinThreadToCore())exit(1);

Definition at line 16 of file pin_thread_to_core.h.

Function Documentation

pinThreadToCore()

bool pinThreadToCore

(

)

Pins the current thread to the current core.

Returns

true on success, false otherwise

Definition at line 19 of file pin_thread_to_core.cpp.

                      {
#ifndef __APPLE__
        cpu_set_t cpuset;
        pthread_t thread = pthread_self();
        /* Set affinity mask to include CPUs 0 to 7 */
 
        CPU_ZERO(&cpuset);
        for(int  j = 0; j < 8; j++){
                CPU_SET(j, &cpuset);
        }
        int s = pthread_setaffinity_np(thread, sizeof(cpu_set_t), &cpuset);
        if(s != 0){handle_error_en(s, "pthread_setaffinity_np");return false;}
        /* Check the actual affinity mask assigned to the thread */
        s = pthread_getaffinity_np(thread, sizeof(cpu_set_t), &cpuset);
        if(s != 0){handle_error_en(s, "pthread_getaffinity_np");return false;}
#endif
        return true;
}

References handle_error_en.