https://community.intel.com/t5/Software-Archive/unhalted-clock/m-p/1074750#M59526 <P>Hello dear all</P> <P>I am trying to change parallel fraction ratio of a a fixed program workload , then it runs on Core i7 quad core to calculate the change in CPU performance,</P> <P>when I increased the parallel ratio the performance counter unhalted_clock decreasing in high parallel ratio and the highest value of the same counter when I have full sequential execution in single core?</P> <P>Why this happen, and where the additional workload come from.</P> <P>Thank you</P> <P>&nbsp;</P> Tue, 13 Sep 2016 17:22:23 GMT Mohammed_A_4 2016-09-13T17:22:23Z https://community.intel.com/t5/Software-Archive/unhalted-clock/m-p/1074750#M59526 <P>Hello dear all</P> <P>I am trying to change parallel fraction ratio of a a fixed program workload , then it runs on Core i7 quad core to calculate the change in CPU performance,</P> <P>when I increased the parallel ratio the performance counter unhalted_clock decreasing in high parallel ratio and the highest value of the same counter when I have full sequential execution in single core?</P> <P>Why this happen, and where the additional workload come from.</P> <P>Thank you</P> <P>&nbsp;</P> Tue, 13 Sep 2016 17:22:23 GMT https://community.intel.com/t5/Software-Archive/unhalted-clock/m-p/1074750#M59526 Mohammed_A_4 2016-09-13T17:22:23Z https://community.intel.com/t5/Software-Archive/unhalted-clock/m-p/1074751#M59527 <P>Mohammed -- this is not the right forum for your question, and I'm afraid I do not know enough about what you asking to help you find the correct forum. Please review the complete forum list here &gt; <A href="https://software.intel.com/en-us/forums/" target="_blank">https://software.intel.com/en-us/forums/</A> &lt;</P> Wed, 14 Sep 2016 01:26:27 GMT https://community.intel.com/t5/Software-Archive/unhalted-clock/m-p/1074751#M59527 PaulF_IntelCorp 2016-09-14T01:26:27Z