/* (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(); } }