Intel® Xeon Phi™ Coprocessor High-Performance Programming by Jim Jeffers & James Reinders

Author:Jim Jeffers & James Reinders
Language: eng
Format: epub
ISBN: 9780124104945
Publisher: Elsevier Inc.
Published: 2013-02-14T16:00:00+00:00

Figure 7.17 Incorrect Usage of _Cilk_shared.

In the example of correct usage shown in Figure 7.18, the object mark has been allocated statically, and its usage modified slightly:

Figure 7.18 Correct Usage of _Cilk_shared.

Synchronization between the processor and the target

Memory synchronization between the processor and the target occurs at the following predefined points:

• When an offloaded function is called by the processor, and upon entering the offloaded function on the target

• When an offloaded function on the target returns, and upon the return of the function to the processor

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