Fix timing bug and splitter rng bug

Change-Id: I9bc07d23798ea01832b10e208b6ba945ef8ff3d8

sort.C

@@ -61,10 +61,12 @@ struct timezone { int   tz_minuteswest;
 
 void generateSetOfNumbers(int arr[], int n)
 {
-  int p[10] = {0,1,2,3,4,5,6,7,8,9};
+  int p[n];
+  for(int i=0;i<n;i++)
+    p[i] = i;
   
   //shuffle p
-  for (int i=9; i>0; --i)
+  for (int i=n; i>0; --i)
   {
     //get swap index
     int j = rand()%i;
@@ -137,7 +139,7 @@ int main(int argc, char** argv) {
     MPI_Get_processor_name(processor_name, &name_len);
 
     int nProcs = world_size;
-    int s = 2;
+    int s = 64;
     int dataCount = 1<<12;
     int data_per_proc = dataCount/nProcs;
 
@@ -272,9 +274,11 @@ int main(int argc, char** argv) {
 
   int final_data[dataCount];
   int global_count = 0;
+  int total_bucket_size = 0;
   for(int i=0;i<nProcs;i++){
     int num_b;
     MPI_Recv(&num_b, 1, MPI_INT, i, 0, MPI_COMM_WORLD,MPI_STATUS_IGNORE);
+    total_bucket_size += num_b;
     int data_new[num_b];
     MPI_Recv(data_new, num_b, MPI_INT, i, 0, MPI_COMM_WORLD,MPI_STATUS_IGNORE);
     for(int j=0;j<num_b;j++){
@@ -285,6 +289,8 @@ int main(int argc, char** argv) {
     }
   }
 
+  printf("\nProc-%d's bucket size=%d\n", world_rank, total_bucket_size);
+
   for(int j=0;j<nProcs;j++){
     MPI_Wait(&request1[j], &status1[j]);
     MPI_Wait(&request2[j], &status2[j]);
@@ -305,7 +311,10 @@ int main(int argc, char** argv) {
            " out of %d processors\n",
            processor_name, world_rank, world_size);
 #endif
-  
+
+    int dummy = nProcs;
+    MPI_Bcast(&dummy, 1, MPI_INT, 0, MPI_COMM_WORLD); //Barrier for timing
+    MPI_Barrier(MPI_COMM_WORLD);
     if(world_rank==0)
       printf("\nTime = %lf\n", mysecond_()-start_time);
     // Finalize the MPI environment.