diff --git a/MultiSource/Benchmarks/Prolangs-C++/ocean/ocean.cpp b/MultiSource/Benchmarks/Prolangs-C++/ocean/ocean.cpp
--- a/MultiSource/Benchmarks/Prolangs-C++/ocean/ocean.cpp
+++ b/MultiSource/Benchmarks/Prolangs-C++/ocean/ocean.cpp
@@ -12,6 +12,9 @@
 #if defined(__XS1B__)
 #include "xcoretestsuite.h"
 #endif
+#ifdef _AIX
+#define AIX_RAND_MAX 2147483647
+#endif
 
 //cell.cc
 Cell *Cell::getCellAt(Coordinate aCoord) {
@@ -127,11 +130,19 @@
 #define MAX 32767
 
 float Random::randReal(void) {
+#ifdef _AIX
+  return random()/(float)AIX_RAND_MAX;
+#else
   return random()/(float)RAND_MAX;
+#endif
 }
 
 unsigned Random::nextIntBetween(int low, int high) {
+#ifdef _AIX
+  return (long long)(random())* high / AIX_RAND_MAX;
+#else
   return (long long)(random())* high / RAND_MAX;
+#endif
 }
 
 //ocean.cc
diff --git a/MultiSource/Benchmarks/Rodinia/srad/main.c b/MultiSource/Benchmarks/Rodinia/srad/main.c
--- a/MultiSource/Benchmarks/Rodinia/srad/main.c
+++ b/MultiSource/Benchmarks/Rodinia/srad/main.c
@@ -4,6 +4,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#ifdef _AIX
+#define AIX_RAND_MAX 2147483647
+#endif
 void random_matrix(float I[ROWS][COLS]);
 void srad_kernel(float dN[ROWS][COLS], float dS[ROWS][COLS],
                  float dW[ROWS][COLS], float dE[ROWS][COLS],
@@ -80,7 +83,11 @@
   glibc_compat_srand(SEED);
   for (int i = 0; i < ROWS; i++) {
     for (int j = 0; j < COLS; j++) {
+      #ifdef _AIX
+      I[i][j] = glibc_compat_rand() / (float)AIX_RAND_MAX;
+      #else
       I[i][j] = glibc_compat_rand() / (float)RAND_MAX;
+      #endif
     }
   }
 }