int
main( int argc, char **argv )
{
int EventSet = PAPI_NULL;
long long *values;
int num_flops, retval, i, j;
int *events, mythreshold;
char **names;
const PAPI_hw_info_t *hw_info = NULL;
int num_events, *ovt;
char name[PAPI_MAX_STR_LEN];
const PAPI_component_info_t *comp_info = NULL;
int using_perfmon = 0;
int using_aix = 0;
int numcmp, cid;
tests_quiet( argc, argv ); /* Set TESTS_QUIET variable */
retval = PAPI_library_init( PAPI_VER_CURRENT );
if ( retval != PAPI_VER_CURRENT ) {
test_fail( __FILE__, __LINE__, "PAPI_library_init", retval );
}
hw_info = PAPI_get_hardware_info( );
if ( hw_info == NULL ) {
test_fail( __FILE__, __LINE__, "PAPI_get_hardware_info", retval );
}
numcmp = PAPI_num_components( );
for ( cid = 0; cid < numcmp; cid++ ) {
comp_info = PAPI_get_component_info( cid );
if ( comp_info == NULL ) {
test_fail( __FILE__, __LINE__, "PAPI_get_component_info", retval );
}
if ( strstr( comp_info->name, "perfmon.c" ) ) {
using_perfmon = 1;
}
if ( strstr( comp_info->name, "aix.c" ) ) {
using_aix = 1;
}
}
/* add PAPI_TOT_CYC and one of the events in */
/* PAPI_FP_INS, PAPI_FP_OPS PAPI_TOT_INS, */
/* depending on the availability of the event*/
/* on the platform */
EventSet = enum_add_native_events( &num_events, &events, 1 , 1);
if (!TESTS_QUIET) printf("Trying %d events\n",num_events);
names = ( char ** ) calloc( ( unsigned int ) num_events,
sizeof ( char * ) );
for ( i = 0; i < num_events; i++ ) {
if ( PAPI_event_code_to_name( events[i], name ) != PAPI_OK ) {
test_fail( __FILE__, __LINE__,"PAPI_event_code_to_name", retval);
}
else {
names[i] = strdup( name );
if (!TESTS_QUIET) printf("%i: %s\n",i,names[i]);
}
}
values = ( long long * )
calloc( ( unsigned int ) ( num_events * ( num_events + 1 ) ),
sizeof ( long long ) );
ovt = ( int * ) calloc( ( unsigned int ) num_events, sizeof ( int ) );
#if defined(linux)
{
char *tmp = getenv( "THRESHOLD" );
if ( tmp ) {
mythreshold = atoi( tmp );
}
else if (hw_info->mhz!=0) {
mythreshold = ( int ) hw_info->mhz * 20000;
if (!TESTS_QUIET) printf("Using a threshold of %d (20,000 * MHz)\n",mythreshold);
}
else {
if (!TESTS_QUIET) printf("Using default threshold of %d\n",THRESHOLD);
mythreshold = THRESHOLD;
}
}
#else
mythreshold = THRESHOLD;
#endif
num_flops = NUM_FLOPS * 2;
/* initial test to make sure they all work */
if (!TESTS_QUIET) printf("Testing that the events all work with no overflow\n");
retval = PAPI_start( EventSet );
if ( retval != PAPI_OK ) {
test_fail( __FILE__, __LINE__, "PAPI_start", retval );
}
do_flops( num_flops );
retval = PAPI_stop( EventSet, values );
if ( retval != PAPI_OK ) {
test_fail( __FILE__, __LINE__, "PAPI_stop", retval );
}
/* done with initial test */
/* keep adding events? */
for ( i = 0; i < num_events; i++ ) {
/* Enable overflow */
if (!TESTS_QUIET) printf("Testing with overflow set on %s\n",
names[i]);
retval = PAPI_overflow( EventSet, events[i],
mythreshold, 0, handler );
if ( retval != PAPI_OK ) {
test_fail( __FILE__, __LINE__, "PAPI_overflow", retval );
}
retval = PAPI_start( EventSet );
if ( retval != PAPI_OK ) {
test_fail( __FILE__, __LINE__, "PAPI_start", retval );
}
do_flops( num_flops );
retval = PAPI_stop( EventSet, values + ( i + 1 ) * num_events );
if ( retval != PAPI_OK ) {
test_fail( __FILE__, __LINE__, "PAPI_stop", retval );
}
/* Disable overflow */
retval = PAPI_overflow( EventSet, events[i], 0, 0, handler );
if ( retval != PAPI_OK ) {
test_fail( __FILE__, __LINE__, "PAPI_overflow", retval );
}
ovt[i] = total;
total = 0;
}
if ( !TESTS_QUIET ) {
printf("\nResults in Matrix-view:\n");
printf( "Test Overflow on %d counters with %d events.\n",
num_events,num_events );
printf( "-----------------------------------------------\n" );
printf( "Threshold for overflow is: %d\n", mythreshold );
printf( "Using %d iterations of c += a*b\n", num_flops );
printf( "-----------------------------------------------\n" );
printf( "Test type : " );
for ( i = 0; i < num_events + 1; i++ ) {
printf( "%16d", i );
}
printf( "\n" );
for ( j = 0; j < num_events; j++ ) {
printf( "%-27s : ", names[j] );
for ( i = 0; i < num_events + 1; i++ ) {
printf( "%16lld", *( values + j + num_events * i ) );
}
printf( "\n" );
}
printf( "Overflows : %16s", "" );
for ( i = 0; i < num_events; i++ ) {
printf( "%16d", ovt[i] );
}
printf( "\n" );
printf( "-----------------------------------------------\n" );
}
/* validation */
if ( !TESTS_QUIET ) {
printf("\nResults broken out for validation\n");
}
if (!TESTS_QUIET) {
for ( j = 0; j < num_events+1; j++ ) {
if (j==0) {
printf("Test results, no overflow:\n\t");
}
else {
printf("Overflow of event %d, %s\n\t",j-1,names[j-1]);
}
for(i=0; i < num_events; i++) {
if (i==j-1) {
printf("*%lld* ",values[(num_events*j)+i]);
}
else {
printf("%lld ",values[(num_events*j)+i]);
}
}
printf("\n");
if (j!=0) {
printf("\tOverflow should be %lld / %d = %lld\n",
values[(num_events*j)+(j-1)],
mythreshold,
values[(num_events*j)+(j-1)]/mythreshold);
printf("\tOverflow was %d\n",ovt[j-1]);
}
}
}
for ( j = 0; j < num_events; j++ ) {
//printf("Validation: %lld / %d != %d (%lld)\n",
// *( values + j + num_events * (j+1) ) ,
// mythreshold,
// ovt[j],
// *(values+j+num_events*(j+1))/mythreshold);
if ( *( values + j + num_events * ( j + 1 ) ) / mythreshold != ovt[j] ) {
char error_string[BUFSIZ];
if ( using_perfmon )
test_warn( __FILE__, __LINE__,
"perfmon substrate handles overflow differently than perf_events",
1 );
else if ( using_aix )
test_warn( __FILE__, __LINE__,
"AIX (pmapi) substrate handles overflow differently than various other substrates",
1 );
else {
sprintf( error_string,
"Overflow value differs from expected %lld / %d != %d (%lld)",
*( values + j + num_events * ( j + 1 ) ), mythreshold,
ovt[j],
*( values + j +
num_events * ( j + 1 ) ) / mythreshold );
test_fail( __FILE__, __LINE__, error_string, 1 );
}
}
}
retval = PAPI_cleanup_eventset( EventSet );
if ( retval != PAPI_OK )
test_fail( __FILE__, __LINE__, "PAPI_cleanup_eventset", retval );
retval = PAPI_destroy_eventset( &EventSet );
if ( retval != PAPI_OK )
test_fail( __FILE__, __LINE__, "PAPI_destroy_eventset", retval );
free( ovt );
for ( i = 0; i < num_events; i++ )
free( names[i] );
free( names );
free( events );
free( values );
test_pass( __FILE__, NULL, 0 );
exit( 1 );
}
int main(int argc, char **argv)
{
int EventSet=PAPI_NULL;
long long *values;
int num_flops, retval, i, j;
int *events, mythreshold;
char **names;
const PAPI_hw_info_t *hw_info = NULL;
int num_events, *ovt;
char name[PAPI_MAX_STR_LEN];
tests_quiet(argc, argv); /* Set TESTS_QUIET variable */
retval = PAPI_library_init(PAPI_VER_CURRENT);
if (retval != PAPI_VER_CURRENT)
test_fail(__FILE__, __LINE__, "PAPI_library_init", retval);
hw_info = PAPI_get_hardware_info();
if (hw_info == NULL)
test_fail(__FILE__, __LINE__, "PAPI_get_hardware_info", 2);
/* 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 */
EventSet = enum_add_native_events(&num_events, &events);
names = (char **)calloc(num_events, sizeof(char *));
for(i=0;i<num_events;i++){
if (PAPI_event_code_to_name(events[i], name) != PAPI_OK)
test_fail(__FILE__, __LINE__, "PAPI_event_code_to_name", retval);
else
names[i] = strdup(name);
}
values = (long long *)calloc(num_events*(num_events+1), sizeof(long long));
ovt = (int *)calloc(num_events, sizeof(int));
#if defined(linux)
{
char *tmp = getenv("THRESHOLD");
if (tmp)
mythreshold = atoi(tmp);
else
mythreshold = hw_info->mhz*10000*2;
}
#else
mythreshold = THRESHOLD;
#endif
num_flops = NUM_FLOPS*2;
retval = PAPI_start(EventSet);
if (retval != PAPI_OK)
test_fail(__FILE__, __LINE__, "PAPI_start", retval);
do_flops(num_flops);
retval = PAPI_stop(EventSet, values);
if (retval != PAPI_OK)
test_fail(__FILE__, __LINE__, "PAPI_stop", retval);
for(i=0;i<num_events;i++){
retval = PAPI_overflow(EventSet, events[i], mythreshold, 0, handler);
if (retval != PAPI_OK)
test_fail(__FILE__, __LINE__, "PAPI_overflow", retval);
retval = PAPI_start(EventSet);
if (retval != PAPI_OK)
test_fail(__FILE__, __LINE__, "PAPI_start", retval);
do_flops(num_flops);
retval = PAPI_stop(EventSet, values+(i+1)*num_events);
if (retval != PAPI_OK)
test_fail(__FILE__, __LINE__, "PAPI_stop", retval);
retval = PAPI_overflow(EventSet, events[i], 0, 0, handler);
if (retval != PAPI_OK)
test_fail(__FILE__, __LINE__, "PAPI_overflow", retval);
ovt[i] = total;
total=0;
}
if (!TESTS_QUIET) {
printf("Test Overflow on %d counters with %d events.\n", num_events, num_events);
printf("---------------------------------------------------------------\n");
printf("Threshold for overflow is: %d\n", mythreshold);
printf("Using %d iterations of c += a*b\n", num_flops);
printf("-----------------------------------------------\n");
printf("Test type : ");
for(i=0;i<num_events+1;i++)
printf("%16d", i);
printf("\n");
for(j=0;j<num_events;j++){
printf("%-27s : ", names[j]);
for(i=0;i<num_events+1;i++)
printf("%16lld", *(values+j+num_events*i));
printf("\n");
}
printf("Overflows : %16s", "");
for(i=0;i<num_events;i++)
printf("%16d", ovt[i]);
printf("\n");
printf("-----------------------------------------------\n");
}
retval = PAPI_cleanup_eventset(EventSet);
if (retval != PAPI_OK)
test_fail(__FILE__, __LINE__, "PAPI_cleanup_eventset", retval);
retval = PAPI_destroy_eventset(&EventSet);
if (retval != PAPI_OK)
test_fail(__FILE__, __LINE__, "PAPI_destroy_eventset", retval);
free(ovt);
for(i=0;i<num_events;i++)
free(names[i]);
free(names);
free(events);
free(values);
test_pass(__FILE__, NULL, 0);
exit(1);
}