added some more macros as quick hack...

examples_cuda/sort/sort.ispc

@@ -188,7 +188,7 @@ static void prefix_sum (uniform int num, uniform int h[])
 
 export void sort_ispc (uniform int n, uniform unsigned int code[], uniform int order[], uniform int ntasks)
 {
-  uniform int num = ntasks < 1 ? num_cores () : ntasks;
+  uniform int num = ntasks ; //< 1 ? num_cores () : ntasks;
   uniform int span = n / num;
   uniform int hsize = 256*programCount*num;
   uniform int * uniform hist = uniform new uniform int [hsize];