{"id":398213,"date":"2024-12-22T17:10:42","date_gmt":"2024-12-22T17:10:42","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/low-cpu-usage-in-hfss\/"},"modified":"2024-12-22T17:13:30","modified_gmt":"2024-12-22T17:13:30","slug":"low-cpu-usage-in-hfss","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/low-cpu-usage-in-hfss\/","title":{"rendered":"Low CPU Usage In HFSS"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;Hello,&lt;\/p&gt;&lt;p&gt;I&#8217;m having an issue with HFSS only using half of the available CPU core during a solve. System:&lt;\/p&gt;&lt;p&gt;AMD 9684X &#8211; 96 Core, SMT &#8211; Off, NPS &#8211; 4.&lt;\/p&gt;&lt;p&gt;12x128gb DDR5 4800mhz&lt;\/p&gt;&lt;p&gt;4x 2tb PCIe 5.0 NVMe in RAID 0 for temp directory&lt;\/p&gt;&lt;p&gt;500+ available Workgoup licenses&lt;\/p&gt;&lt;p&gt;Ansys 2024R2&lt;\/p&gt;&lt;p&gt;Windows Server 2022&lt;\/p&gt;&lt;p&gt;The system is set to use 96 cores, but during adaptive meshing and frequency sweep only 48 cores are used. If I set 192 cores under HPC options, all 96 cores are used. It&#8217;s as if HFSS doesn&#8217;t recognize that SMT is off. I&#8217;m not an expert Ansys user, simply the one who deployed the system, so any advice would be greatly appreciated. Thanks!&lt;\/p&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-398213","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello,I&#039;m having an issue with HFSS only using half of the available CPU core during a solve. 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