Ejemplo n.º 1
0
  void team_barrier()
    {
      const bool not_root = m_team_rank + 1 < m_team_size ;

      for ( int i = 0 ; i < m_fan_team_size ; ++i ) {
        spinwait( m_fan_team[i]->m_state_team , OpenMPexec::Active );
      }
      if ( not_root ) {
        m_state_team = Rendezvous ;
        spinwait( m_state_team , OpenMPexec::Rendezvous );
      }
      for ( int i = 0 ; i < m_fan_team_size ; ++i ) {
        m_fan_team[i]->m_state_team = OpenMPexec::Active ;
      }
    }
Ejemplo n.º 2
0
DWORD WINAPI consumerthread(LPVOID thread)
{
DWORD threadID=GetCurrentThreadId();	

EnterCriticalSection(&cs);
printf("Spawning Consumer");


dequeue();

LeaveCriticalSection(&cs);
SetEvent(Ready);
spinwait(Ptime*100000);
return 0; 
}
Ejemplo n.º 3
0
DWORD WINAPI producerthread(LPVOID thread)
{
DWORD threadID=GetCurrentThreadId();	
int i;


for(i=1; i<=X;i++)
{
EnterCriticalSection(&cs);
enqueue(i);
LeaveCriticalSection(&cs);
SetEvent(Ready);
}

spinwait(Ptime*100000);
return 0; 
}
Ejemplo n.º 4
0
findcpuspeed()
{
	unsigned char low;
	unsigned int remainder;

	/* Put counter in count down mode */
	outb(IO_TIMER1+3, 0x34);
	outb(IO_TIMER1, 0xff);
	outb(IO_TIMER1, 0xff);
	delaycount = FIRST_GUESS;
	spinwait(1);
	/* Read the value left in the counter */
	low 	= inb(IO_TIMER1);	/* least siginifcant */
	remainder = inb(IO_TIMER1);	/* most significant */
	remainder = (remainder<<8) + low ;
	/* Formula for delaycount is :
	 *  (loopcount * timer clock speed)/ (counter ticks * 1000)
	 */
	delaycount = (FIRST_GUESS * (XTALSPEED/1000)) / (0xffff-remainder);
}