https://community.intel.com/t5/Software-Tuning-Performance/MLC-to-support-CoD-for-Haswell-EP-or-EX/m-p/1003047#M3601 <P>I was wondering if there is a version of MLC (Memory Latency Check) utility that understands the CoD (Cluster on Die) snooping mode for the Haswell platform.&nbsp;</P> <P>On a 2 socket Haswell-PE system withh CoD enabled, numactl -H shows 4 memory domains and accounts correctly the cores associated with each, MLC however treats the same host as just a 2 memory domain system and the tests DO NOT DIFFERENTIATE between the two memory controllers (and domains) that are available on each socket.&nbsp;</P> <P><SPAN style="font-size: 1em; line-height: 1.5;">Thanks</SPAN></P> <P><SPAN style="font-size: 1em; line-height: 1.5;">Michael</SPAN></P> Tue, 31 Mar 2015 16:38:14 GMT drMikeT 2015-03-31T16:38:14Z https://community.intel.com/t5/Software-Tuning-Performance/MLC-to-support-CoD-for-Haswell-EP-or-EX/m-p/1003047#M3601 <P>I was wondering if there is a version of MLC (Memory Latency Check) utility that understands the CoD (Cluster on Die) snooping mode for the Haswell platform.&nbsp;</P> <P>On a 2 socket Haswell-PE system withh CoD enabled, numactl -H shows 4 memory domains and accounts correctly the cores associated with each, MLC however treats the same host as just a 2 memory domain system and the tests DO NOT DIFFERENTIATE between the two memory controllers (and domains) that are available on each socket.&nbsp;</P> <P><SPAN style="font-size: 1em; line-height: 1.5;">Thanks</SPAN></P> <P><SPAN style="font-size: 1em; line-height: 1.5;">Michael</SPAN></P> Tue, 31 Mar 2015 16:38:14 GMT https://community.intel.com/t5/Software-Tuning-Performance/MLC-to-support-CoD-for-Haswell-EP-or-EX/m-p/1003047#M3601 drMikeT 2015-03-31T16:38:14Z https://community.intel.com/t5/Software-Tuning-Performance/MLC-to-support-CoD-for-Haswell-EP-or-EX/m-p/1003048#M3602 <P>Sorry, we don't have any plans to support CoD at this time. Meanwhile, you can look at using -m flag (for b/w) and -i and -c flag for latency measurements and get the data you are looking for. You can refer to the readme.pdf for more information on that or post a follow up question here and I will be glad to answer</P> Tue, 31 Mar 2015 19:52:11 GMT https://community.intel.com/t5/Software-Tuning-Performance/MLC-to-support-CoD-for-Haswell-EP-or-EX/m-p/1003048#M3602 Krishnaswa_V_Intel 2015-03-31T19:52:11Z