text: /* This file performs the following test: start, stop and timer
  functionality for 2 slave native SMP threads
  
     - It attempts to use the following two counters. It may use less
  depending on hardware counter resource limitations. These are counted
  in the default counting domain and default granularity, depending on
  the platform. Usually this is the user domain (PAPI_DOM_USER) and
  thread context (PAPI_GRN_THR).
  
       + PAPI_FP_INS
       + PAPI_TOT_CYC
  
  Each of 2 slave pthreads:
     - Get cyc.
     - Get us.
     - Start counters
     - Do flops
     - Stop and read counters
     - Get us.
     - Get cyc.
  
  Master pthread:
     - Get us.
     - Get cyc.
     - Fork threads
     - Wait for threads to exit
     - Get us.
     - Get cyc.
  */
  
  
  #include <stdio.h>
  #include <stdlib.h>
  
  #include "papi.h"
  #include "papi_test.h"
  
  #include "do_loops.h"
  
  #if defined(sun) && defined(sparc)
  #include <thread.h>
  #elif defined(mips) && defined(sgi) && defined(unix)
  #include <mpc.h>
  #elif defined(_AIX) || defined(__linux__)
  #include <pthread.h>
  #endif
  
  
  void
  Thread( int t, int n )
  {
  	int retval, num_tests = 1;
  	int EventSet1 = PAPI_NULL;
  	int PAPI_event, mask1;
  	int num_events1;
  	long long **values;
  	long long elapsed_us, elapsed_cyc;
  	char event_name[PAPI_MAX_STR_LEN];
  
  	/* add PAPI_TOT_CYC and one of the events in PAPI_FP_INS, PAPI_FP_OPS or
  	   PAPI_TOT_INS, depending on the availability of the event on the
  	   platform */
  	EventSet1 = add_two_events( &num_events1, &PAPI_event, &mask1 );
  
  	retval = PAPI_event_code_to_name( PAPI_event, event_name );
  	if ( retval != PAPI_OK )
  		test_fail( __FILE__, __LINE__, "PAPI_event_code_to_name", retval );
  
  	values = allocate_test_space( num_tests, num_events1 );
  
  	retval = PAPI_start( EventSet1 );
  	if ( retval != PAPI_OK )
  		test_fail( __FILE__, __LINE__, "PAPI_start", retval );
  
  	elapsed_us = PAPI_get_real_usec(  );
  
  	elapsed_cyc = PAPI_get_real_cyc(  );
  
  	do_flops( n );
  
  	elapsed_us = PAPI_get_real_usec(  ) - elapsed_us;
  
  	elapsed_cyc = PAPI_get_real_cyc(  ) - elapsed_cyc;
  
  	retval = PAPI_stop( EventSet1, values[0] );
  	if ( retval != PAPI_OK )
  		test_fail( __FILE__, __LINE__, "PAPI_stop", retval );
  
  	remove_test_events( &EventSet1, mask1 );
  
  	if ( !TESTS_QUIET ) {
  		printf( "Thread %#x %-12s : \t%lld\n", t, event_name,
  				values[0][1] );
  		printf( "Thread %#x PAPI_TOT_CYC : \t%lld\n", t, 
  			values[0][0] );
  	}
  
  	free_test_space( values, num_tests );
  	if ( !TESTS_QUIET ) {
  		printf( "Thread %#x Real usec    : \t%lld\n", t, elapsed_us );
  		printf( "Thread %#x Real cycles  : \t%lld\n", t, elapsed_cyc );
  	}
  	PAPI_unregister_thread(  );
  }
  
  int
  main( int argc, char **argv )
  {
  	int i, retval, quiet;
  	long long elapsed_us, elapsed_cyc;
  
  	/* Set TESTS_QUIET variable */
  	quiet=tests_quiet( argc, argv );
  
  	retval = PAPI_library_init( PAPI_VER_CURRENT );
  	if ( retval != PAPI_VER_CURRENT ) {
  		test_fail( __FILE__, __LINE__, "PAPI_library_init", retval );
  	}
  
  	elapsed_us = PAPI_get_real_usec(  );
  
  	elapsed_cyc = PAPI_get_real_cyc(  );
  
  #if defined(_AIX) || defined(__linux__)
  	retval =
  		PAPI_thread_init( ( unsigned long ( * )( void ) ) ( pthread_self ) );
  	if ( retval != PAPI_OK ) {
  		if ( retval == PAPI_ECMP )
  			test_skip( __FILE__, __LINE__, "PAPI_thread_init", retval );
  		else
  			test_fail( __FILE__, __LINE__, "PAPI_thread_init", retval );
  	}
  #if defined(_AIX)
  #pragma ibm parallel_loop
  #endif
  
  #elif defined(sgi) && defined(mips)
  	retval =
  		PAPI_thread_init( ( unsigned long ( * )( void ) ) ( mp_my_threadnum ) );
  	if ( retval != PAPI_OK ) {
  		test_fail( __FILE__, __LINE__, "PAPI_thread_init", retval );
  	}
  #pragma parallel
  #pragma local(i)
  #pragma pfor
  #elif defined(sun) && defined(sparc)
  	retval = PAPI_thread_init( ( unsigned long ( * )( void ) ) ( thr_self ) );
  	if ( retval != PAPI_OK ) {
  		test_fail( __FILE__, __LINE__, "PAPI_thread_init", retval );
  	}
  #pragma MP taskloop private(i)
  #else
  	if (!quiet) {
  		printf("This test only runs on AIX/IRIX/SOLOARIS\n");
  	}
  	test_skip(__FILE__, __LINE__, "Architecture not included in this test file yet.", 0);
  #endif
  	for ( i = 1; i < 3; i++ ) {
  		Thread( i, 10000000 * i );
  	}
  
  	elapsed_cyc = PAPI_get_real_cyc(  ) - elapsed_cyc;
  
  	elapsed_us = PAPI_get_real_usec(  ) - elapsed_us;
  
  	if ( !quiet ) {
  		printf( "Master real usec   : \t%lld\n", elapsed_us );
  		printf( "Master real cycles : \t%lld\n", elapsed_cyc );
  	}
  
  	// FIXME: we don't really validate anything here
  
  	test_pass( __FILE__ );
  
  	return 0;
  }
  