{"id":390437,"date":"2024-10-18T15:19:16","date_gmt":"2024-10-18T15:19:16","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluent-fails-with-intel-mpi-protocol-on-2-nodes\/"},"modified":"2024-10-28T18:20:06","modified_gmt":"2024-10-28T18:20:06","slug":"fluent-fails-with-intel-mpi-protocol-on-2-nodes","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluent-fails-with-intel-mpi-protocol-on-2-nodes\/","title":{"rendered":"Fluent fails with Intel MPI protocol on 2 nodes"},"content":{"rendered":"<p>&lt;p class=&#8221;MsoNormal&#8221;&gt;Hello,&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;ANSYS Fluent fails to start on 2 compute nodes with Intel MPI, though it starts and runs fine with the same settings (InfiniBand, Shared Memory) on a single compute node. I understand the issue may be with OS (Rocky 8.10, which is not &lt;span style=&#8221;mso-spacerun: yes;&#8221;&gt;&nbsp;&lt;\/span&gt;formally supported by ANSYS as yet).&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;If anybody has experience mending Intel MPI, please?&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;Thank you!&lt;\/p&gt;&lt;p class=&#8221;MsoNormal&#8221;&gt;PS. Fluent starts and runs on 2 nodes with OpenMPI protocol, but 4 times slower than on 1 node with IntelMPI.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-390437","topic","type-topic","status-publish","hentry","topic-tag-ansys-fluent","topic-tag-intel-mpi-1","topic-tag-parallel-processing-1"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello,ANSYS Fluent fails to start on 2 compute nodes with Intel MPI, though it starts and runs fine with the same settings (InfiniBand, Shared Memory) on a single compute node. 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