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At SC13 (Super Computing 2013)*, someone commented that Intel seems to have some super-secret set of tricks in its pocket, allowing us to optimize “far beyond those of mortal man”+. We don’t really have any super-secret tricks. Even if we did, we wouldn’t use them. We want mortal man (you) to be able to reproduce whatever we do. It is also in our business interest to insure that you can optimize on Intel hardware to the fullest extent possible.
I just wanted to let whoever is listening that I just published updates to the Resource Guide for Intel® Xeon Phi™ Coprocessor Developers and Resource Guide for Intel® Xeon Phi™ Coprocessor Administrators documents.
This article identifies resources for anyone investigating the value to their organization of the Intel® Xeon Phi™ coprocessor, which is based on the Intel® Many Integrated Core (Intel® MIC) architecture. It is one of three such guides, each for people in one of the following specific roles:
We had an ask from one of the various “Birds of a Feather” meetings Intel® holds at venues such as at the Super Computing* (SC) and International Super Computing* (ISC) conferences. The customer wanted to know BKMs (Best Known Methods) on the proper usage of the new OpenMP* 4.0 / Intel® Cilk™ Plus SIMD directive. I volunteered to create such a list. Investigating the topic more thoroughly, I discovered that there is already a vast amount of resources on vectorization and the use of the SIMD directive.
The prior part (2) of this blog provided a header and set of function that can be used to determine the logical core and logical Hyper-Thread number within the core. This determination is to be use in an optimization strategy called the Hyper-Thread Phalanx.
Previous blogs on power management and a host of other power management resources can be found in, “List of Useful Power and Power Management Articles, Blogs and References” at http://software.intel.com/en-us/articles/list-of-useful-power-and-power-management-articles-blogs-and-references. See [LIST] below in the reference section.
SO WHEN IS TURBO USEFUL
Let us cut to the chase and ask the two most important questions: