some changes

2013-07-29 11:05:05 +02:00
parent 307abc8db7
commit 153fbc3d7d
2 changed files with 19 additions and 24 deletions
--- a/ptxtest/test.ispc
+++ b/ptxtest/test.ispc
@@ -2,9 +2,11 @@ export void saxpy(const uniform float a, const uniform float x_[], const uniform
 {
  foreach (i = 0 ... n)
  {
-     const float x = x_[i];
-     const float y = y_[i];
-     const float z = y + a*x;
+     const double x = x_[i];
+     const double y = y_[i];
+     const double dz = y + a*x;
+     const double dz1 = 1.0/sqrt(dz);
+     const float z = dz1;
     z_[i] = rsqrt(z);
  }
 }