Power management policy has evolved over the years. The earliest policies consisted of little more than some critical temperature sensors and an interrupt routine that attempted (often unsuccessfully) to cleanly shut down the system before something really bad happened.
Unlike a lot of previous recent blogs, this series is about power management in general. At the very end of the series, I’ll write specifically about the Intel® Xeon Phi™ coprocessor.
I have talked incessantly over the years about power states (e.g. P-states and C-states), and how the processor transitions from one state to another. For a list of previous blogs in this series, and well as other related blogs on power and power management, see the article at [List0]. But I have left out an important component of power management, namely the policy.
(For a PDF version of this article, download the attachment.)
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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.
Yep. Here is another blog series from yours truly. Unfortunately, it will delay my long awaited – at least by me – discussion on measuring power.
Here is a rough outline for the blogs:
近来，我们发布了 “Windows* 8 教程：使用英特尔® 线程构建模块为 Windows Store* 编写多线程应用”。其中我们提到，并行计算引擎很容易导入其他移动或台式机平台。Android 是这种移动平台的一个典型的例子。
When trying to Create a New Analysis in Intel® VTune™ Amplifier 2014 for Systems to connect to an Android* Device.
You may get the error message:
adb - device not found
cannot communicate with the target.
Error while getting collector context values.
or in Project Properties you might get the error message:
There are no Android Devices attached to this machine. You will not be able to collect any data.
There are 3 potential reasons for this:
Dear passionate power management reader,
Doing an internet scan for material having to do with power management policy, my next blog series, I ran across a blog that I believe to be excellent. As many of you have discovered, I generally write at a pretty high level, though technical. I do this intentionally. At the beginning of my blogging career, there was not much written about power management that was comprehensible to a competent engineer who was not a power expert.