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23 lines
727 B
Plaintext
23 lines
727 B
Plaintext
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SHORT L1 compute to data access ratio
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EVENTSET
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PMC0 VPU_ELEMENTS_ACTIVE
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PMC1 DATA_READ_OR_WRITE
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METRICS
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Runtime (RDTSC) [s] time
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L1 compute intensity PMC0/PMC1
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LONG
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Formulas:
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L1 compute intensity = VPU_ELEMENTS_ACTIVE/DATA_READ_OR_WRITE
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-
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These metric is a way to measure the computational density of an
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application, or how many computations it is performing on average for each
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piece of data loaded. L1 compute to data access ratio should be
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used to judge suitability of an application for running on the Intel MIC
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architecture. Applications that will perform well on the Intel MIC
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architecture should be vectorized, and ideally be able to perform multiple
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operations on the same pieces of data (or same cache lines).
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