int main(int argc, char**argv)
{
printf("starting wrapper\n");
if (argc < 3)
{
printf("Usage: %s <watt_cap> <executable> <args>...\n", argv[0]);
return 1;
}
if (highlander())
{
/* Start the log file. */
int logfd;
char hostname[64];
gethostname(hostname, 64);
char *fname;
int ret = asprintf(&fname, "%s.power.dat", hostname);
if (ret < 0)
{
printf("Fatal Error: Cannot allocate memory for fname.\n");
return 1;
}
logfd = open(fname, O_WRONLY|O_CREAT|O_EXCL|O_NOATIME|O_NDELAY, S_IRUSR|S_IWUSR);
if (logfd < 0)
{
printf("Fatal Error: %s on %s cannot open the appropriate fd.\n", argv[0], hostname);
return 1;
}
logfile = fdopen(logfd, "w");
read_rapl_init();
/* Set the cap. */
watt_cap = strtod(argv[1], NULL);
set_rapl_power(watt_cap, watt_cap);
/* Start power measurement thread. */
pthread_t mthread;
pthread_create(&mthread, NULL, power_set_measurement, NULL);
/* Fork. */
pid_t app_pid = fork();
if (app_pid == 0)
{
/* I'm the child. */
execvp(argv[2], &argv[2]);
return 1;
}
/* Wait. */
waitpid(app_pid, NULL, 0);
sleep(1);
highlander_wait();
/* Stop power measurement thread. */
running = 0;
take_measurement();
end = now_ms();
/* Output summary data. */
char *msg;
ret = asprintf(&msg, "host: %s\npid: %d\ntotal: %lf\nallocated: %lf\nmax_watts: %lf\nmin_watts: %lf\nruntime ms: %lu\n,start: %lu\nend: %lu\n", hostname, app_pid, total_joules, limit_joules, max_watts, min_watts, end-start, start, end);
if (ret < 0)
{
printf("Fatal Error: Cannot allocate memory for msg.\n");
return 1;
}
fprintf(logfile, "%s", msg);
fclose(logfile);
close(logfd);
shmctl(shmid, IPC_RMID, NULL);
shmdt(shmseg);
}
else
{
/* Fork. */
pid_t app_pid = fork();
if (app_pid == 0)
{
/* I'm the child. */
execvp(argv[2], &argv[2]);
return 1;
}
/* Wait. */
waitpid(app_pid, NULL, 0);
highlander_wait();
}
return 0;
}
int main(int argc, char** argv) {
if( argc < 2 ) {
printf("usage: %s <executable> <args>...\n",argv[0]);
return 1;
}
//saeid
printf("Im here, beginning of main");
//end saeid
// if( highlander()) {
if(1) {
//saeid
printf("after highlander() if, before gethostname");
//end saeid
// Start the log file
int logfd;
char hostname[64];
gethostname(hostname,64);
char* fname;
asprintf(&fname,"%s.power.dat",hostname);
//saeid
printf("file name is: %s",fname);
//end saeid
logfd = open(fname, O_WRONLY|O_CREAT|O_EXCL|O_NOATIME|O_NDELAY, S_IRUSR|S_IWUSR);
if( logfd < 0 ) {
printf( "Fatal Error: %s on %s cannot open the appropriate fd.\n",argv[0], hostname);
printf ("Error no is : %d\n", errno);
// printf("Oh dear, something went wrong with read()! %s\n", strerror(errno));
return 1;
}
logfile = fdopen(logfd,"w");
// Start power measurement thread
pthread_t mthread;
pthread_mutex_init(&mlock,NULL);
pthread_create(&mthread, NULL, power_measurement, NULL);
//saeid
printf ("Press any key\n");
char check;
check = getchar();
//end saeid
// Fork
pid_t app_pid = fork();
if(app_pid == 0) {
// I'm the child
execvp(argv[1],&argv[1]);
printf("fork failure\n");
return 1;
}
// Wait
waitpid(app_pid, NULL, 0);
sleep(1);
highlander_wait();
// Stop power measurement thread
running = 0;
take_measurement();
end = now_ms();
// Output summary data
char* msg;
asprintf(&msg, "host: %s\npid: %d\ntotal: %lf\nallocated: %lf\nmax_watts: %lf\nmin_watts: %lf\nruntime ms: %lu\n,start: %lu\nend: %lu\n",hostname,app_pid,total_joules,limit_joules,max_watts,min_watts,end-start,start,end);
fprintf(logfile,"%s",msg);
fclose(logfile);
close(logfd);
shmctl(shmid,IPC_RMID,NULL);
shmdt(shmseg);
} else {
// Fork
pid_t app_pid = fork();
if(app_pid == 0) {
// I'm the child
execvp(argv[1],&argv[1]);
printf("Fork failure\n");
return 1;
}
// Wait
waitpid(app_pid, NULL, 0);
printf("I'm here!\n");
highlander_wait();
}
return 0;
}