https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Detecting-physical-and-logical-64-bit-processors/m-p/905415#M4414 <FONT face="Arial" size="2">I read the article </FONT><A href="http://www.intel.com/cd/ids/developer/asmo-na/eng/275339.htm"><FONT face="Arial" size="2">Detecting Multi-Core Processor Topology in an IA-32 Platform</FONT></A><FONT face="Arial" size="2">. I found valuable info on detecting physical and logical processors inIA-32. Can you tell where to find similar info for 64-bit machines?</FONT> Tue, 17 Oct 2006 02:24:30 GMT postaquestion 2006-10-17T02:24:30Z https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Detecting-physical-and-logical-64-bit-processors/m-p/905415#M4414 <FONT face="Arial" size="2">I read the article </FONT><A href="http://www.intel.com/cd/ids/developer/asmo-na/eng/275339.htm"><FONT face="Arial" size="2">Detecting Multi-Core Processor Topology in an IA-32 Platform</FONT></A><FONT face="Arial" size="2">. I found valuable info on detecting physical and logical processors inIA-32. Can you tell where to find similar info for 64-bit machines?</FONT> Tue, 17 Oct 2006 02:24:30 GMT https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Detecting-physical-and-logical-64-bit-processors/m-p/905415#M4414 postaquestion 2006-10-17T02:24:30Z https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Detecting-physical-and-logical-64-bit-processors/m-p/905416#M4415 <P>There is a corresponding CPUID call for x64 architectures: cpuid64. Check out <A href="http://www3.intel.com/cd/ids/developer/asmo-na/eng/257129.htm">CPUID for x64 Platforms and Microsoft Visual Studio* .NET 2005</A> for details on how to use this. If that's not enough, you could try contacting the authors of the IA-32 paper to see if they have any additional info.</P> <P>--clay</P> Fri, 20 Oct 2006 05:13:53 GMT https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Detecting-physical-and-logical-64-bit-processors/m-p/905416#M4415 ClayB 2006-10-20T05:13:53Z