I spe开发者_StackOverflow中文版nt this morning trying to find out how to determine which processor id is the hyper-threaded core, but without luck.
I have a hard time finding some hard facts about it, and I can\'t really run any benchmarks myself, so I figured I\'d ask here:
I am trying to optimise the compilation time of a large VC++ project. My processor is a Core i7 950 (4 Cores, 8 Threads since it supports Intel Hyper开发者_开发知识库-Threading Technology).
I\'m running some fairly processor-intensive stuf开发者_开发技巧f on my PC, and notice my CPU usage looks pretty odd. My PC is a quad-core i7-870, which supposedly has eight virtual cores.
Executive summary: How can one specify in his code that OpenMP should only use threads for the REAL cores, i.e. not count the hyper-threading ones?
If a multithreaded program runs safe on a single-core CPU with hyperthreading, will it also run safe on a dual-core CPU with hyperthreading? Concerning thread-safety etc.
We got a 12-core MacPro to do some Monte Carlo calculations. Its Intel Xeon processors have Hyper-Threading (HT) enabled, so in fact there should be 24 processes running in parallel to make them fully
Say if I have a processor like this which says # cores = 4, # threads = 4 开发者_如何学运维and without Hyper-threading support.
We have recently purchased a dual Intel X5650 workstation to run a floating-point intensive simulation, under Ubuntu 10.04.
I\'m curious what the CPU ordering is in Linux.Say I bind a thread to cpu0 and another to cpu1 on a hyperthreaded system, are they both going to be on th开发者_StackOverflowe same physical core.Given
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