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2009
IEEE

Exploiting narrow-width values for thermal-aware register file designs

9 years 7 months ago
Exploiting narrow-width values for thermal-aware register file designs
—Localized heating-up creates thermal hotspots across the chip, with the integer register file ranked as the hottest unit in high-performance microprocessors. In this paper, we perform a detailed study on the thermal behavior of a low-power value-aware register file (VARF) that is subjected to internal fine-grain hotspots. To further optimize its thermal behavior, we propose and evaluate three thermal-aware control schemes, thermal sensor (TS), access counter (AC), and register-id (ID) based, to balance the access activity and thus the temperature across different partitions in the VARF. The simulation results using SPEC CINT2000 benchmarks show that the register-id controlled VARF (ID-VARF) scheme achieves optimized thermal behavior at minimum cost as compared to the other schemes. We further evaluate the performance impact of the thermal-aware VARF design with the dynamic thermal management (DTM). The experimental results show that the ID-VARF can improve the performance by 26.1...
Shuai Wang, Jie Hu, Sotirios G. Ziavras, Sung Woo
Added 20 May 2010
Updated 20 May 2010
Type Conference
Year 2009
Where DATE
Authors Shuai Wang, Jie Hu, Sotirios G. Ziavras, Sung Woo Chung
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