/code><br><code>real</code> <strong><code>reduce_sum_static</code></strong><code>(F f, T[] x, int grainsize, T1 s1, T2 s2, ...)</code><br></p>
<p>Returns the equivalent of <code>f(x, 1, size(x), s1, s2, ...)</code>, but computes the result in parallel by breaking the array <code>x</code> into independent partial sums. <code>s1, s2, ...</code> are shared between all terms in the sum.</p>
<ul>
<li><em><code>f</code></em>: function literal referring to a function specifying the partial sum operation. Refer to 