tasks a-s

Task/Parallel-calculations/JavaScript/parallel-calculations-1.js

@@ -0,0 +1,16 @@
+var onmessage = function(event) {
+    postMessage({"n" : event.data.n,
+                 "factors" : factor(event.data.n),
+                 "id" : event.data.id});
+};
+
+function factor(n) {
+    var factors = [];
+    for(p = 2; p <= n; p++) {
+        if((n % p) == 0) {
+            factors[factors.length] = p;
+            n /= p;
+        }
+    }
+    return factors;
+}

Task/Parallel-calculations/JavaScript/parallel-calculations-2.js

@@ -0,0 +1,38 @@
+var numbers = [12757923, 12878611, 12757923, 15808973, 15780709, 197622519];
+var workers = [];
+var worker_count = 0;
+
+var results = [];
+
+for(var i = 0; i < numbers.length; i++) {
+    worker_count++;
+    workers[i] = new Worker("parallel_worker.js");
+    workers[i].onmessage = accumulate;
+    workers[i].postMessage({n: numbers[i], id: i});
+}
+
+function accumulate(event) {
+    n = event.data.n;
+    factors = event.data.factors;
+    id = event.data.id;
+    console.log(n + " : " + factors);
+    results[id] = {n:n, factors:factors};
+    // Cleanup - kill the worker and countdown until all work is done
+    workers[id].terminate();
+    worker_count--;
+    if(worker_count == 0)
+	reduce();
+}
+
+function reduce() {
+    answer = 0;
+    for(i = 1; i < results.length; i++) {
+	min = results[i].factors[0];
+	largest_min = results[answer].factors[0];
+	if(min > largest_min)
+	    answer = i;
+    }
+    n = results[answer].n;
+    factors = results[answer].factors;
+    console.log("The number with the relatively largest factors is: " + n + " : " + factors);
+}