{"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":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27793"],"_bbp_topic_id":["398213"],"_bbp_subscription":["495853","20363"],"_bbp_author_ip":["24.61.148.229"],"_bbp_last_reply_id":["398369"],"_bbp_last_active_id":["398369"],"_bbp_last_active_time":["2024-12-23 22:08:15"],"_bbp_reply_count":["2"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["495853","20363"],"_btv_view_count":["152"],"_bbp_topic_status":["unanswered"],"_edit_last":["495853"],"_bbp_revision_log":["a:1:{i:398214;a:2:{s:6:\"author\";i:495853;s:6:\"reason\";s:4:\"Typo\";}}"],"_edit_lock":["1734888470:495853"]},"test":"ca8874a826c95540610bf487c18a5034fdf1bae9"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/398213","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/398213\/revisions"}],"predecessor-version":[{"id":398214,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/398213\/revisions\/398214"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=398213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}