{"id":38620,"date":"2019-10-29T12:13:26","date_gmt":"2019-10-29T12:13:26","guid":{"rendered":"\/forum\/forums\/topic\/problem-of-running-fluent-on-multiple-cpus\/"},"modified":"2019-10-29T12:13:26","modified_gmt":"2019-10-29T12:13:26","slug":"problem-of-running-fluent-on-multiple-cpus","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problem-of-running-fluent-on-multiple-cpus\/","title":{"rendered":"Problem of running Fluent on multiple CPUs"},"content":{"rendered":"<p>I have a workstation with two CPUs and each CPU has 18 cores and 36 threads, so the machine has a total of 36 cores and 72 threads. When I run ANSYS Fluent using 32 process on my Windows 10 64-bit system by clicking &#8220;Fluent launcher -&gt; Processing Options -&gt; Parallel (Local Machine) -&gt;32 Processes&#8221;, the case can be allocated to 32 threads on one CPU, as observed from Windows Task Manager. However, when I type 64 on the &#8220;Processes&#8221; tab in Fluent launcher as described before, the case is still just allocated to 32 threads on a single CPU. Could anyone tell me why does this happen and how to solve the problem?&nbsp;<\/p>\n<p><\/p>\n<p>BTW, I am totally fresh to parallel computing and still confused about the relation between &#8220;compute node&#8221; and number of CPUs. Seen from Windows Task Manager (snapshot as following), my workstation has two so-called &#8220;Node&#8221; and each node has 36 CPUs. Thus I guess the &#8220;Node&#8221; here refers to the fact that my workstation has two distinct Intel Xeon CPUs, and &#8220;CPU&#8221; here actually refers to the fact that each Intel CPU has 36 threads? How&nbsp;could I confirm the number of compute node and its correspondences with CPUs on my workstation?&nbsp;<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/us.v-cdn.net\/6032193\/uploads\/attachments\/ba918b7e-20ed-41e7-a1d8-aaf500c2fccc\/8e3f15cd-1c4e-4502-ae0b-aaf500c947f1_1.jpg?width=690&amp;upscale=false\" alt=\"Snapshot of Windows Task Manager on my workstation\"><\/p>\n","protected":false},"template":"","class_list":["post-38620","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["10798"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":[null],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["7826"],"_bbp_subscription":["244350","289923"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["38620"],"_bbp_forum_id":["27796"],"_bbp_engagement":["199","169978","187313","289923"],"_bbp_voice_count":["4"],"_bbp_reply_count":["9"],"_bbp_last_reply_id":["311473"],"_bbp_last_active_id":["311473"],"_bbp_last_active_time":["2023-10-14 04:51:07"]},"test":"haiteng"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/38620","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":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/38620\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=38620"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}