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

RowClone: Fast and Energy-Efficient In-DRAM Bulk Data Copy and Initialization. Processor. Channel. Memory. Limited bandwidth. High energy. Carnegie Mellon University Intel Pittsburgh. RowClone: Fast and Energy-Efficient In-DRAM Bulk Data Copy and Initialization. Processor. Channel.

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

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  1. RowClone: Fast and Energy-Efficient In-DRAM Bulk Data Copy and Initialization Processor Channel Memory Limited bandwidth High energy Carnegie Mellon University Intel Pittsburgh

  2. RowClone: Fast and Energy-Efficient In-DRAM Bulk Data Copy and Initialization Processor Channel Memory Limited bandwidth High energy Bulk Data Copy Data Initialization 000000000000 Forking Zeroing Checkpointing VM Cloning Carnegie Mellon University Intel Pittsburgh

  3. RowClone: Fast and Energy-Efficient In-DRAM Bulk Data Copy and Initialization Processor Channel Memory Limited bandwidth High energy Bulk Data Copy Data Initialization Unnecessary Data Movement 000000000000 Forking Zeroing Checkpointing VM Cloning Carnegie Mellon University Intel Pittsburgh

  4. RowClone: In-DRAM Bulk Copy & Initialization Source Row Destination Row Row Buffer

  5. RowClone: In-DRAM Bulk Copy & Initialization Source Row 1 Destination Row Row Buffer Copy from source row to row buffer

  6. RowClone: In-DRAM Bulk Copy & Initialization Source Row 1 Destination Row 2 Row Buffer Copy from row buffer to destination row Copy from source row to row buffer

  7. RowClone: In-DRAM Bulk Copy & Initialization Source Row 1 Destination Row 2 Row Buffer Copy from row buffer to destination row Copy from source row to row buffer 11x 74x Latency Energy Very few changes to DRAM (0.01% increase in die area)

  8. RowClone: In-DRAM Bulk Copy & Initialization End-to-end system design to exploit DRAM substrate Several applications that benefit from RowClone

  9. RowClone: In-DRAM Bulk Copy & Initialization End-to-end system design to exploit DRAM substrate Several applications that benefit from RowClone 8-Core System 27% Current Systems Performance RowClone DRAM Energy Efficiency 17%

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