RowClone: Fast and Efficient In-DRAM Copy and Initialization of Bulk Data

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Provided by: Carnegie Mellon University
Topic: Hardware
Format: PDF
Many programs initialize or copy large amounts of memory data. Initialization and copying are forms of memory operations that do not require computation in order to derive their data-values - they either deals with known data-values or simply move data-values that already exist elsewhere in memory. Therefore, initialization/copying can potentially be performed entirely within the main memory subsystem without involving the processor or the DMA engines. Unfortunately, existing main memory subsystems are unable to take advantage of this fact.
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