Amoeba-Cache Adaptive Blocks for Eliminating Waste in the Memory Hierarchy
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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 1
description
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. - PowerPoint PPT Presentation
Transcript of Amoeba-Cache Adaptive Blocks for Eliminating Waste in the Memory Hierarchy
Amoeba-Cache Adaptive Blocks for Eliminating Waste in the Memory Hierarchy
Snehasish KumarArrvindh ShriramanEric MatthewsLesley Shannon
Hongzhou ZhaoSandhya Dwarkadas
Amoeba Cache : Adaptive blocks for Eliminating Waste in the Memory Hierarchy 1
Cache data utilization
Amoeba Cache : Adaptive blocks for Eliminating Waste in the Memory Hierarchy 2
Tags Data UntouchedData
Tag Array Data Array
Variable Granularity Blocks
Amoeba Cache : Adaptive blocks for Eliminating Waste in the Memory Hierarchy 3
Tag Array Data Array
How to support variable # of blocks / set ?
How to support variable granularity for each block?
Our Approach : Amoeba Cache
Amoeba Cache : Adaptive blocks for Eliminating Waste in the Memory Hierarchy 4
Unified SRAM Array
Miss Rate
Space Utilisation
Bandwidth
AmoebaCache
Target Metrics
Amoeba Cache : Adaptive blocks for Eliminating Waste in the Memory Hierarchy 5
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%
Results
