What does a Developer need to do to Take Advantage of the Intel® SSE4 Instructions and Microarchitecture Enhancements in Penryn?
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While many of the microarchitecture enhancements in Penryn can be utilized without recompilation, most applications will achieve the maximum performance and power efficiency gains by recompiling with the Intel® compiler and manually optimizing code using Intel tools and libraries such as the Intel VTune™ Performance Analyzer, Intel® Integrated Performance Primitives (Intel® IPP), and the Intel® Math Kernel Library (Intel® MKL). Many microarchitecture enhancements like the larger L2 cache, Super Shuffle Engine, Fast Radix-16 Divider, and Enhanced Cache Line Split Load will benefit a broad range of software applications without recompilation. While the exact performance gain is highly workload dependent, about half of the gains that Penryn provides can be realized this way. Developers will see additional gains in performance and energy efficiency when recompiling with the Intel compiler version 10 (scheduled to ship in June 2007). The Intel compiler version 10 can generate Intel SSE4 ins
