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An 8-Core MIPS-Compatible Processor in 32/28 nm Bulk CMOS
介绍32/28纳米工艺的8核MIPS兼容处理器Godson-3B1500，具有高性能和低功耗特点。
1.0 GHz至1.5 GHz频率，1.0 V至1.3 V电压，150GFLOPS@1.2 GHz性能，<40 W功耗
多核处理器MIPS兼容低功耗设计高性能计算32/28纳米工艺
▸创新点1：8核MIPS兼容设计（系统创新）。该处理器采用8核架构，兼容MIPS指令集，显著提升了多线程处理能力和并行计算性能，适用于高性能计算场景。
▸创新点2：向量扩展支持（方法创新）。通过引入向量扩展指令集，优化了数据并行处理能力，显著提升了浮点运算性能，达到150GFLOPS@1.2 GHz的高性能指标。
▸创新点3：32/28纳米工艺优化（电路创新）。采用STMicroelectronics的32/28 nm高κ金属栅极低功耗CMOS工艺，结合10层金属布线技术，实现了晶体管密度和能效的显著提升，功耗低于40W。
▸创新点4：电源管理优化（电路创新）。通过动态电压调节技术，支持1.0V至1.3V的宽电压范围，进一步优化了功耗效率，适应不同负载场景的需求。
Abstract
This paper is an extension of Hu et al. ,I S S C C , 2013, and it introduces the 32/28 nm implementations of Godson-3B1500, which are 8-core MIPS-compatible micro- processors with vector extensio ns. Godson-3B1500 is fabricated in STMicroelectronics 32/28 nm high- κ metal-gate low-power bulk CMOS with 10 metal layers. It contains 1.14 billion transistors and operates at the frequency of 1.0 GHz to 1.5 GHz with the voltage supply ranging from 1.0 V to 1.3 V. Compared to its predecessor (Hu et al. , ISSCC, 2011), Godson-3B1500 brings significant power ef ficiency improvements with enhanced perfor- mance (150GFLOPS@1.2 GHz) and reduced power dissipation (< 40 W), due to not only technology scaling but also a great deal of design efforts.