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As the number of cores increases in both incoming and future chip multiprocessors, coherence protocols must address novel hardware structures in order to scale in terms of performance, power, and area. It is well known that most blocks accessed by parallel applications are private (i.e., accessed by a single core). These blocks present different directory requirements and behavior than shared blocks...
Prefetching significantly reduces the memory latencies of a wide range of applications and thus increases the system performance. However, as a speculative technique, prefetching may also noticeably increase the number of memory accesses, which in turns may negatively impact on the main memory bandwidth consumption, performance, and power. Main memory bandwidth consumption is a critical resource especially...
Prefetching significantly reduces the memory latencies of a wide range of applications and thus increases the system performance. However, as a speculative technique, prefetching may also noticeably increase the number of memory accesses, which in turns may negatively impact on the main memory bandwidth consumption, performance, and power. Main memory bandwidth consumption is a critical resource especially...
Multicore processors are dominating the microprocessor market and most research work has moved to this kind of processors. Multicore research methods are still immature and evolving from the single-threaded processor ounterparts. Three main research issues must be faced when evaluating performance and energy in multicores. First, multiple simulation methodologies are being applied to evaluate these...
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