/* (non-Javadoc)
* @see java.lang.Runnable#run()
*/
public void run() {
try {
myHandle.call(seed, times, count);
myHandle.dispose();
} catch (GrpcException e) {
e.printStackTrace();
}
}
public static void main(String args[]) {
try {
if (args.length != 3) {
System.err.println("Usage: java PIHandleArray configFile nSampling serverName");
System.exit(1);
}
String configName = args[0];
int nSampling = Integer.parseInt(args[1]);
String hostname = args[2];
/* create GrpcClient */
GrpcClient client = GrpcClientFactory.getClient("org.apgrid.grpc.ng.NgGrpcClient");
/* activate GrpcClient */
client.activate(configName);
/* create GrpcHandle */
GrpcFunctionHandle[] handle = null;
/* specify hostname */
Properties prop = new Properties();
prop.put(NgGrpcHandleAttr.KEY_HOSTNAME, hostname);
handle = client.getFunctionHandles(targetExe, prop, nJobs);
/* call function */
PIHandleArray[] piArray = new PIHandleArray[nJobs];
Thread[] piThread = new Thread[nJobs];
for (int i = 0; i < nJobs; i++) {
piArray[i] = new PIHandleArray(handle[i], i, nSampling);
piThread[i] = new Thread(piArray[i]);
piThread[i].start();
}
/* wait for finish, then calc result */
long sum = 0;
for (int i = 0; i < nJobs; i++) {
piThread[i].join();
sum += piArray[i].count[0];
}
double pi = 4.0 * (sum / (double) nSampling);
/* print result */
System.out.println("PI = " + pi);
/* deactivate client */
client.deactivate();
} catch (NumberFormatException e) {
System.err.println("Invalid argument: " + args[1]);
System.exit(1);
} catch (GrpcException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
