topic Re: Hyperthreading problem in Intel® Moderncode for Parallel Architectures https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Hyperthreading-problem/m-p/963371#M5366 <DIV></DIV> <P>Hi Allan,</P> <P>What operating system are you using? If you're using Windows, does the Task Manager show two CPU's? If Linux, does top show two CPU's?</P> <DIV>Thanks</DIV> <DIV>Henry</DIV> Tue, 20 Apr 2004 05:30:31 GMT Henry_G_Intel 2004-04-20T05:30:31Z Hyperthreading problem https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Hyperthreading-problem/m-p/963370#M5365 <DIV></DIV> <DIV></DIV> <DIV></DIV> <DIV><FONT size="2">I have 2 pc's configured this way:</FONT></DIV> <DIV><FONT size="2"></FONT></DIV> <DIV><FONT size="2">2.8GHz(w/hyper-threading)</FONT></DIV> <DIV><FONT size="2">ASUS MB P4P8X SE</FONT></DIV> <DIV><FONT size="2">256MB PC3200</FONT></DIV> <DIV><FONT size="2"></FONT></DIV> <DIV><FONT size="2">and</FONT></DIV> <DIV><FONT size="2"></FONT></DIV> <DIV><FONT size="2">2.4GHzC(w/hyper-threading)</FONT></DIV> <DIV><FONT size="2">ASUS MB P4P8X</FONT></DIV> <DIV><FONT size="2">512MB PC3200</FONT></DIV> <DIV><FONT size="2"></FONT></DIV> <DIV><FONT size="2">Problem: 2.8GHz shows HT enabled in the BIOS and can run 2 separate threads just as you would on a multi-processor pc. The 2.4GHz shows HT enabled in the BIOS but I am unable to run separate threads as I do on the 2.8GHz. When I do the applications compete for cpu time. The MB have the identical BIOS versions installed. The MB, processors and memory all support hyper-threading technology. Am I missing something?</FONT></DIV> <DIV><FONT size="2"></FONT></DIV> <DIV><FONT size="2">Thanks for your replies</FONT></DIV> <DIV><FONT size="2">Allan</FONT></DIV> Sun, 18 Apr 2004 11:19:08 GMT https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Hyperthreading-problem/m-p/963370#M5365 abirch 2004-04-18T11:19:08Z Re: Hyperthreading problem https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Hyperthreading-problem/m-p/963371#M5366 <DIV></DIV> <P>Hi Allan,</P> <P>What operating system are you using? If you're using Windows, does the Task Manager show two CPU's? If Linux, does top show two CPU's?</P> <DIV>Thanks</DIV> <DIV>Henry</DIV> Tue, 20 Apr 2004 05:30:31 GMT https://community.intel.com/t5/Intel-Moderncode-for-Parallel/Hyperthreading-problem/m-p/963371#M5366 Henry_G_Intel 2004-04-20T05:30:31Z