--- jsr166/src/test/loops/FJPhaserJacobi.java	2009/10/29 23:16:47	1.3
+++ jsr166/src/test/loops/FJPhaserJacobi.java	2015/08/10 03:13:33	1.12
@@ -1,8 +1,12 @@
-// Barrier version of Jacobi iteration
+/*
+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
 
 import java.util.concurrent.*;
-//import jsr166y.*;
 
+/** Barrier version of Jacobi iteration */
 public class FJPhaserJacobi {
 
     static int dimGran;
@@ -20,11 +24,12 @@ public class FJPhaserJacobi {
         }
 
         catch (Exception e) {
-            System.out.println("Usage: java FJPhaserJacobi <matrix size> <max steps>");
+            System.out.println("Usage: java ThreadPhaserJacobi <matrix size> <max steps>");
             return;
         }
 
         ForkJoinPool fjp = new ForkJoinPool();
+        //        int granularity = (n * n / fjp.getParallelism()) / 2;
         int granularity = n * n / fjp.getParallelism();
         dimGran = (int)(Math.sqrt(granularity));
 
@@ -57,9 +62,7 @@ public class FJPhaserJacobi {
 
             System.out.println("Compute Time: " + secs);
             System.out.println(fjp);
-
         }
-
     }
 
     static class Segment extends CyclicAction {
@@ -137,8 +140,8 @@ public class FJPhaserJacobi {
         public void compute() {
             int rows = hiRow - loRow + 1;
             int cols = hiCol - loCol + 1;
-            int rblocks = (int)(Math.round((float)rows / dimGran));
-            int cblocks = (int)(Math.round((float)cols / dimGran));
+            int rblocks = Math.round((float)rows / dimGran);
+            int cblocks = Math.round((float)cols / dimGran);
 
             int n = rblocks * cblocks;