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Issue No. 04 - April (2013 vol. 62)
ISSN: 0018-9340
pp: 705-715
Naehyuck Chang , Sch. of Comput. Sci. & Eng., Seoul Nat. Univ., Seoul, South Korea
Sung Woo Chung , Dept. of Comput. & Radio Commun. Eng., Korea Univ., Seoul, South Korea
Seungwon Shin , Dept. of Mech. Eng., Hongik Univ., Seoul, South Korea
Sung-Soo Lim , Sch. of Comput. Sci., Kookmin Univ., Seoul, South Korea
Ikroh Yoon , Dept. of Mech. Eng., Hongik Univ., Seoul, South Korea
Jinhang Choi , Dept. of Comput. & Radio Commun. Eng., Korea Univ., Seoul, South Korea
Hyung Beom Jang , Dept. of Comput. & Radio Commun. Eng., Korea Univ., Seoul, South Korea
In the early design stage of processors, Dynamic Thermal Management (DTM) schemes should be evaluated to avoid excessively high temperature, while minimizing performance overhead. In this paper, we show that conventional thermal simulations using the fixed ambient temperature may lead to the wrong conclusions in terms of temperature, performance, reliability, and leakage power. Though ambient temperature converges to a steady-state value after hundreds of seconds when we run SPEC CPU2000 benchmark suite, the steady-state ambient temperature is significantly different depending on applications and system configuration. To overcome inaccuracy of conventional thermal simulations, we propose that microarchitectural thermal simulations should exploit application/system-dependent ambient temperature. Our evaluation results reveal that performance, thermal behavior, reliability, and leakage power of the same DTM scheme are different when we use the application/system-dependent ambient temperature instead of the fixed ambient temperature. For accurate simulation results, future microarchitectural thermal researchers are expected to evaluate their proposed DTM schemes based on application/system-dependent ambient temperature.
temperature, logic design, microprocessor chips, power aware computing, processor design stage, system-dependent ambient temperature, microarchitectural thermal simulation, dynamic thermal management, DTM scheme, performance overhead, fixed ambient temperature, SPEC CPU2000 benchmark suite, steady-state ambient temperature, application-dependent ambient temperature, microprocessor temperature, Temperature sensors, Temperature measurement, Program processors, Temperature, Computational modeling, ambient temperature, Dynamic thermal management (DTM), microarchitectural thermal simulation
Naehyuck Chang, Sung Woo Chung, Seungwon Shin, Sung-Soo Lim, Ikroh Yoon, Jinhang Choi, Hyung Beom Jang, "Exploiting Application/System-Dependent Ambient Temperature for Accurate Microarchitectural Simulation", IEEE Transactions on Computers, vol. 62, no. , pp. 705-715, April 2013, doi:10.1109/TC.2012.24
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