void
rapl_finalize( struct rapl_state_s *s, int reset_limits){
int package;
if(s->f == NULL){
printf("\n Error: File pointer should not be null. Something went wrong");
return;
}
if( s==NULL ){
printf("\n Error: State pointer should not be null. Something went wrong");
s = &no_caller_rapl_state;
}
if(s->initializedTick){
uint64_t tsc = rdtsc();
// require 10ms between ticks
if(tsc_delta(&lastNonzeroTick, &tsc, &tsc_rate) > 0.01)
rapl_tick(s, 0);
}
for(package=0; package<NUM_PACKAGES; package++){
get_all_status(package, s);
if(reset_limits){
// Rest all limits.
// This is currently the default limit on rzmerl.
printf("\nRESETTING LIMITS\n");
write_msr( package, MSR_PKG_POWER_LIMIT, APPRO_DEFAULT_PKG_POWER_LIMIT);
/*
write_msr( package, MSR_PP0_POWER_LIMIT, 0 );
#ifdef ARCH_062D
write_msr( package, MSR_DRAM_POWER_LIMIT, 0 );
#endif
*/ // These are currently locked out.
//We had disabled turbo. The default is to leave this enabled.
enable_turbo(package);
}
}
// Now the print statement from hell. Call this only if it is not a dry-run
//I.E., if we are in the read-only or the read-write modes.
//Otherwise, the file should be empty.
if(s->mode.dry_run_flag == 1 && s->mode.read_only_flag ==0 && s->mode.read_write_flag == 0){
fprintf(stdout, "\nIn DRY_RUN mode.\n");
finalize_msr();
}
else {
//This is either read-only or read_write mode.
print_rapl_state(s);
finalize_msr();
}
}
void restore_defaults()
{
//No one else can enter now.
in_handler = 1;
int package;
// Reset all limits.
for(package=0; package<NUM_PACKAGES; package++){
write_msr( package, MSR_PKG_POWER_LIMIT, 0x6845000148398 );
/*
write_msr( package, MSR_PP0_POWER_LIMIT, 0 );
#ifdef ARCH_062D
write_msr( package, MSR_DRAM_POWER_LIMIT, 0 );
# endif
*/ // These are currently locked out.
//Default is enabled for turbo boost
enable_turbo(package);
}
//Close the /dev/cpu/msr files, in case they are open...
finalize_msr();
//Now exit.
//printf("In_handler is %d", in_handler);
_exit(EXIT_FAILURE);
//You can't reach here, so the value of in_handler stays 1 until we exit. No one
//else can get in while it is 1
}
int main(int argc, char** argv){
#ifdef MPI
MPI_Init(&argc, &argv);
#endif
int power;
init_msr();
struct rapl_data r[NUM_SOCKETS];
int socket;
for(socket=0; socket<NUM_SOCKETS; socket++)
r[socket].flags = RDF_REENTRANT | RDF_INIT;
// Initialize r
for(socket=0; socket<NUM_SOCKETS; socket++)
read_rapl_data(socket, &r[socket]);
sleep(1);
perform_rapl_measurement(r);
for(power=5; power<150; power+=10) {
rapl_set_test(power);
sleep(10);
perform_rapl_measurement(r);
}
finalize_msr();
#ifdef MPI
MPI_Finalize();
#endif
return 0;
}
