Invention Grant
- Patent Title: Resource-aware compression
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Application No.: US16725971Application Date: 2019-12-23
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Publication No.: US11544196B2Publication Date: 2023-01-03
- Inventor: SeyedMohammad SeyedzadehDelcheh , Shomit N. Das , Bradford Michael Beckmann
- Applicant: Advanced Micro Devices, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Kowert Hood Munyon Rankin and Goetzel PC
- Agent Rory D. Rankin
- Main IPC: G06F12/08
- IPC: G06F12/08 ; G06F12/0871 ; G06F12/0897 ; G06F11/30 ; G06F12/02

Abstract:
Systems, apparatuses, and methods for implementing a multi-tiered approach to cache compression are disclosed. A cache includes a cache controller, light compressor, and heavy compressor. The decision on which compressor to use for compressing cache lines is made based on certain resource availability such as cache capacity or memory bandwidth. This allows the cache to opportunistically use complex algorithms for compression while limiting the adverse effects of high decompression latency on system performance. To address the above issue, the proposed design takes advantage of the heavy compressors for effectively reducing memory bandwidth in high bandwidth memory (HBM) interfaces as long as they do not sacrifice system performance. Accordingly, the cache combines light and heavy compressors with a decision-making unit to achieve reduced off-chip memory traffic without sacrificing system performance.
Public/Granted literature
- US20210191869A1 RESOURCE-AWARE COMPRESSION Public/Granted day:2021-06-24
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