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Cilk++ is an extension to C++ that offers a quick, easy and reliable way to improve the performance of C++ programs on multi-core processors.
It introduces three new key words:
* The cilk_spawn keyword modifies a function call statement to tell the Cilk++ runtime system that the function may (but is not required to) run in parallel with the caller
* The cilk_sync statement indicates that the current function cannot run in parallel with its spawned children. After the children all complete, the current function can continue.
* A cilk_for loop is a replacement for the normal C++ for loop that permits loop iterations to run in parallel. The Cilk++ compiler converts a cilk_for loop into an efficient divide-and-conquer recursive traversal over the loop iterations.
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