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【转】ARM11 MPCore多处理器

ARM11 MPCore多处理器
2007-04-06 16:33

ARM公司于2005年7月向其合作伙伴演示了首款ARM11 MPCore多处理器(multiprocessor)，其功耗仅为600毫瓦，但具备1440 Dhrystone MIPS的性能。这款测试芯片基于ARMv6指令集结构，由四枚缓存运行一致的处理器组成，由NEC采用通用130nm制造工艺加工而成，并没有对性能或功率进行优化。

ARM多处理项目经理John Goodacre表示，该测试芯片工作的时钟频率高达300MHz。他接着指出："该芯片意在方便我们测试多处理设计和缓存的功能性，正因为如此，它在工艺和库的选择上比较保守。尽管如此，我们毕竟创造出了处理能力最高的单芯片ARM处理器。"

Goodacre表示，ARM的授权对象未来将能够在更高性能的130nm工艺和优化库中，进行可综合的设计，并有望实现350Hz到550MHz的时钟频率性能，而这是商用ARM11通用处理器的典型值。

一年前，ARM曾表示MPCore能够配置成包含1个到4个处理器，具有高达2600 Dhrystone MIPS的性能。ARM11 MPCore处理器测试芯片是ARM与NEC合作开发下一代基于对称多处理技术的多处理器内核的结晶。它得到瑞典KTH皇家技术学院OpenMP编译器技术的支持，得以减少高达85%的功耗。现在已经了采用ARM11 MPCore的智能手机和移动视听设备上市。

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