Vardan,<br><br>I get the same performance with double precision. I have NDEBUG defined, but I don&#39;t know about other optimization flags. I didn&#39;t profile with any tool but the bottle neck is exactly at that section of the code where I perform the element wise summation. I&#39;ll try to make a simple sample which performs the same kind of operations to see what I get.<br>
<br>Thanks.<br><br>x<br>