This is done to increase efficiency of data loads and stores to and from the processor. Jim Jeffers, James Reinders, in Intel Xeon Phi Coprocessor High Performance Programming, 2013 Mixing aligned and unaligned accesses: how to tell the vectorizer all RHS memory references are 64-Byte alignedÄata alignment is a method to force the compiler to create data objects in memory on specific byte boundaries.
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