Can Broken Multicore Hardware be Mended?
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Abstract
The multi- and many-core (MC) era we have reached was triggered after the beginning of the century by the stalling of single-processor performance. Technology allowed more transistors to be placed on a die, but they could not reasonably be utilized to increase single-processor performance. Predictions about the number of cores has only partly been fulfilled: today#x2019;s processors have dozens rather than the predicted hundreds of cores (although the Chinese supercomputer [3] announced in the middle of 2016 comprises 260 cores on a die). Despite this, the big players are optimistic. They expect that Moore-law persists, though based on presently unknown technologies. The effect of the stalled clock frequency is mitigated, and it is even predicted [6] that #x201D;Now that there are multicore processors, there is no reason why computers shouldn#x2019;t begin to work faster, whether due to higher frequency or because of parallel task execution. And with parallel task execution it provides even greater functionality and flexibility! #x201D;
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2018-01-15
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