That would be nice, but I have only 12 cores. Has anyone else seen this?
Mac Pro, Mac OS X (10.6.7), Dual 6 core cpus
That's because each core has two threads, which show up as individual processors in activity monitor. Makes your new machine look mighty impressive, doesn't it?
Hyper-threading, part of Intel processors for the last 2-3 yrs.
Logical cores, virtual cores doesn't really say what it is, just running a 2nd thread with idle cpu cycles which gives you only 20-35% boost when used, also causes the processor to run warmer of course too.
Not a whole lot has been optimized for a 12-core system even today, they must also be programmed and optimized to use use OS calls and functions (like Grand Central) which was one of the driving forces behind the need to redo Final Cut X.
Take a look in Wikipedia on Xeon, Nehalem, and HT.
I thought that was possible but appreciate the validation. 😉
What originally caught my eye was that only every other line in the activity monitor showed any activity. So I ran the hardware diagnostics to see if there was anything amiss. No problems were found. So it looks like the hyperthreading is not being used, but all the cores do participate to some extent.
I was involved in the signal processor industry in the 80s when the use of multiple processors was really getting going. Our system was synchronous, but even so, required a lot of planning to use efficiently. My work is mainly finite element analysis, Monte Carlo simulation and image processing, all of which can be programmed in parallel, so I expect to benefit from it at some point. So far 20-35% that you note is pretty accurate.
So CUDA would probably be something that can supercharge your work I take it?
Between how well a GPU can function as GPGPU, parallel processing, even work as a C or Fortran compiler.
If there were a couple 8-pin connectors, and a 2nd double-width slot and team a pair of GPUs.
It does sound interesting... I was unaware of the product.
My activity monitor shows 24 lines of cpus.
