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Amoeba-Cache Adaptive Blocks for Eliminating Waste in the Memory Hierarchy

Amoeba-Cache Adaptive Blocks for Eliminating Waste in the Memory Hierarchy. Snehasish Kumar Arrvindh Shriraman Eric Matthews Lesley Shannon. Hongzhou Zhao Sandhya Dwarkadas. Cache data utilization. Tag Array. Data Array. Untouched Data. Tags. Data. Variable Granularity Blocks.

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Amoeba-Cache Adaptive Blocks for Eliminating Waste in the Memory Hierarchy

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  1. Amoeba-Cache Adaptive Blocks for Eliminating Waste in the Memory Hierarchy Snehasish Kumar Arrvindh Shriraman Eric Matthews Lesley Shannon Hongzhou Zhao Sandhya Dwarkadas Amoeba Cache : Adaptive blocks for Eliminating Waste in the Memory Hierarchy

  2. Cache data utilization Tag Array Data Array Untouched Data Tags Data Amoeba Cache : Adaptive blocks for Eliminating Waste in the Memory Hierarchy

  3. Variable Granularity Blocks Tag Array Data Array How to support variable # of blocks / set ? How to support variable granularity for each block? Amoeba Cache : Adaptive blocks for Eliminating Waste in the Memory Hierarchy

  4. Our Approach : Amoeba Cache Unified SRAM Array Amoeba Cache : Adaptive blocks for Eliminating Waste in the Memory Hierarchy

  5. Target Metrics Bandwidth Amoeba Cache Space Utilisation Miss Rate Amoeba Cache : Adaptive blocks for Eliminating Waste in the Memory Hierarchy

  6. Results Reduces L1 and L2 miss rate by 18% Reduces on-chip bandwidth by 46% Reduces off-chip bandwidth by 38% Reduces energy by 11% Improves performance by 10%

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