http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/feed/ en-us http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-21026 Mon, 16 Mar 2009 12:27:45 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-21026 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-23478 Thu, 30 Apr 2009 04:20:50 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-23478 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-23767 Tue, 05 May 2009 22:57:47 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-23767 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-23769 Tue, 05 May 2009 22:57:58 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-23769 CPUID (requiring constant attention to processor updates, or at least Dave Jones's excellent x86info) and OS-level exports to determine processor count. I assume that, as this library grows, it'll detail core topology? Hopefully things like CPUSETS and Linux's Control Groups will make this less important to the parallel systems programmer than it is now. The inexorable march of manycore makes this kind of thing a major issue (we don't want two processes scheduled on widely-separated cores) -- good solutions at the OS level ought solve this, though. Extension of this library to report other CPUID elements (especially interior cache parameters) would be a similarly-welcomed development. I'm surely not the only guy carrying around his own code with comments like: // Uses all four primary general-purpose 32-bit registers (e[abcd]x), returning // these in gpregs[0123]. We must preserve EBX ourselves in when -fPIC is used. or, regarding signets (always happiest to see GenuntelineI! =D): // There's also: (Collect them all! Impress your friends!) // " UMC UMC UMC" "CyriteadxIns" "NexGivenenDr" // "RiseRiseRise" "GenuMx86ineT" "Geod NSCe by" or, in a moment of rage: // XXX What a cheap piece of garbage, yeargh! VIA doesn't supply cache // line info via CPUID. VIA C3 Antaur/Centaur both use 32b. The proof // is by method of esoteric reference: // http://www.digit-life.com/articles2/rmma/rmma-via-c3.html ]]> http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-29674 Sun, 16 Aug 2009 09:57:06 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-29674 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30588 Wed, 02 Sep 2009 23:44:38 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30588 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30612 Thu, 03 Sep 2009 10:38:47 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30612 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30613 Thu, 03 Sep 2009 10:41:03 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30613 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30614 Thu, 03 Sep 2009 10:44:03 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30614 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30617 Thu, 03 Sep 2009 11:32:00 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30617 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30642 Thu, 03 Sep 2009 18:28:27 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30642 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30869 Thu, 10 Sep 2009 04:47:48 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30869 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30903 Fri, 11 Sep 2009 02:52:53 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30903 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30904 Fri, 11 Sep 2009 02:55:46 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-30904 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-31178 Thu, 17 Sep 2009 05:27:17 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-31178 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-31241 Fri, 18 Sep 2009 13:44:43 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-31241 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-33013 Tue, 20 Oct 2009 21:27:38 -0700 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-33013 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-35167 Fri, 20 Nov 2009 12:08:19 -0800 http://software.intel.com/en-us/articles/hyper-threading-technology-multi-core-and-mobile-intel-pentium-processor-m-toolbox/#comment-35167