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64位处理器竞争日趋激烈,除去IBM、HP、Motorola、Sun之外,Intel发布的64位Itanium引起业界震动,而在MPF(微处理器论坛)上AMD也透露即将推出下一代64位微处理器架构——“Hammer”。处理器字长从32位提升到64位,使地址范围大量扩充,内存容量、数据传输速度、处理速度和精度等性能指标也将随之提升,但如果针对64位芯片的软件设计不好,也会导致处理效率不高。这是Sun处理器产品部门副总裁颜维伦博士12月7日接受记者采访时表达的观点。编译器是关键颜维伦博士在Sun公司从事服务器芯片研发工作已达十余年,他认为,64位的寻址范围较32位有了大量扩充,但大的空间也可能要付出效率的代价。64位处理器主要服务高性能运算,而高性能运算并行性很丰富,编译器是否能找出这些并行性,有效地安排好,最终编译出高效的二进制代码,影响着处理器的运算速度。
64-bit processors are increasingly competitive, with the exception of IBM, HP, Motorola, Sun, Intel released the 64-bit Itanium industry shake, and in the MPF (Microprocessor Forum), AMD also revealed that the next generation of 64-bit micro-processing Architecture - “Hammer”. Processor word length increased from 32 to 64, the address range of a large number of expansion, memory capacity, data transfer speed, processing speed and accuracy and other performance indicators will also be improved, but if the 64-bit chip software design is not good, Will also lead to inefficient processing. This is the point of view expressed by Yan Weilun, vice president of Sun’s processor product division, on December 7 when interviewed by reporters. The compiler is the key Dr. Velen has been working on Sun’s development of server chips for more than ten years. He believes that the 64-bit addressing range has been greatly expanded over 32-bit, but large spaces can also cost efficiency. 64-bit processors mainly serve high-performance computing, and high-performance computing is very rich in parallelism. Whether the compiler can find out the parallelism and effectively arrange it and finally compile efficient binary code affects the operation speed of the processor.