Which arch shall I specify for Intel Threading Building

I ran into O'Reilly's new book on TBB in bookstore today. Really liked how TBB abstract the threads into tasks. But I noticed that the tutorial, in page #12 install on Linux* systems, there are only three available s: ia32, intel64 and ia64. Dmesg on our server shows this: [ 0.132804] CPU0: Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz st开发者_StackOverflowepping 0a. Wondering which shall I choose?

Thanks, Alex

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ia32 is the classic 32-bit Intel ISA

intel64 is 64-bit ISA originally developed by AMD.

ia64 is Itanium

For your machine its intel64.