To the AMP guy, no the AMD thingie is a superset of both GPU and CPU. They are talking about integrating them hence the distinction still remains. The workloads for CPU and CPCPU will become closer due to AMD's idea but not exactly the same for saving power.

Nice article. I knew some of it already but had not thought of the function calls across multiple files. My problem is however is that why people use C/C++ at all. I understand that C/C++ programmers need to jump through a lot of hoops to get the compiler to understand the big picture. This is why I prefer JAVA because their is no ambiguous code. The compiler knows everything and every dependency.

Nope dude. Wrong argument! Speeding up a single thread is like speeding up each individual thread, in addition to your Ahmdahl's (dunno what you really meant there). Make single-thread faster then all threads become faster which makes the program faster. Multi-threading is not a magic, just means there are multiple single threads running with each other so single thread is always relevant. LOL@nostalgic btw.

I see his point that in-order cores are becoming common. I mean iPhone has an in-order core and they are common, hence in-order cores are common ... no debate. What I am thinking about is the importance of the optimizations Shouldn't all iPhone app developers know about these optimizations? This seems like it can be a big win for all cell phone developers to follow some of these techniques. I do notice some very slow apps on my iphone and wonder his arguments play a role.

This article deals with this exact point. Multicore can save energy if program can be parallelized. http://www.futurechips.org/chip-design-for-all/a-multicore-save-energy.html