{"id":390641,"date":"2024-10-21T13:20:40","date_gmt":"2024-10-21T13:20:40","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problem-during-restarting-of-system-coupling\/"},"modified":"2024-10-21T13:20:40","modified_gmt":"2024-10-21T13:20:40","slug":"problem-during-restarting-of-system-coupling","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/problem-during-restarting-of-system-coupling\/","title":{"rendered":"Problem during restarting of System Coupling"},"content":{"rendered":"<p>&lt;div&gt;Hello everyone. I am trying to run a 2-way FSI (Mechanical-Fluent) to model blood flow though an artery. I am running the simulation using 2023R2 version in our University&#8217;s cluster. I encountered a problem while trying to restart the system coupling. The initial run ended successfully after 108ms. When I tried to restart from 90ms (previous restart point), it runs well for some time (upto 92 ms) and fluent throws an error which is as follows:&lt;\/div&gt;&lt;div&gt;200 Stored Partitions:&lt;\/div&gt;&lt;div&gt;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&lt;\/div&gt;&lt;div&gt;Collective Partition Statistics:&nbsp; &nbsp; &nbsp; &nbsp;Minimum Maximum Total&lt;\/div&gt;&lt;div&gt;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&lt;\/div&gt;&lt;div&gt;Cell count&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 688&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;712&nbsp; &nbsp; &nbsp; 140092&lt;\/div&gt;&lt;div&gt;Mean cell count deviation&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; -1.8%&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1.6%&lt;\/div&gt;&lt;div&gt;Partition boundary cell count&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;98&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 312&nbsp; &nbsp; &nbsp; &nbsp;41847&lt;\/div&gt;&lt;div&gt;Partition boundary cell count ratio 13.9%&nbsp; &nbsp; &nbsp; &nbsp; 44.6%&nbsp; &nbsp; &nbsp; &nbsp; 29.9%&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;Face count&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1511&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1620&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;287262&lt;\/div&gt;&lt;div&gt;Mean face count deviation&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;-3.2%&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3.8%&lt;\/div&gt;&lt;div&gt;Partition boundary face count&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 109&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 392&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 24799&lt;\/div&gt;&lt;div&gt;Partition boundary face count ratio&nbsp; 7.1%&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 24.2%&nbsp; &nbsp; &nbsp; &nbsp; 8.6%&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;Cell weights&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;7e+03&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 7e+03&nbsp; &nbsp; &nbsp;1e+06&lt;\/div&gt;&lt;div&gt;Mean cell weight deviation&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;-1.8%&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;1.6%&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;Partition neighbor count&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;21&lt;\/div&gt;&lt;div&gt;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&lt;\/div&gt;&lt;div&gt;Partition Method Metis&lt;\/div&gt;&lt;div&gt;Stored Partition Count 200&lt;\/div&gt;&lt;div&gt;Done.&lt;\/div&gt;&lt;div&gt;*** Error in <code>\/sw\/eb\/sw\/ANSYS\/2023R2\/v232\/fluent\/fluent23.2.0\/lnamd64\/3ddp_node\/fluent_mpi.23.2.0&#039;: free(): corrupted unsorted chunks: 0x00000000176983e0 ***&lt;\/div&gt;&lt;div&gt;*** Error in<\/code>\/sw\/eb\/sw\/ANSYS\/2023R2\/v232\/fluent\/fluent23.2.0\/lnamd64\/3ddp_node\/fluent_mpi.23.2.0&#8242;: free(): corrupted unsorted chunks: 0x00000000163d32b0 ***&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;The mechanical part seems fine. These were the last lines of the output file:&lt;\/div&gt;&lt;div&gt;&lt;div&gt;&nbsp;*** AVERAGE DISP INCREMENT ACROSS SOURCE INTERFACE. System Coupling Region (FSIN_1)&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; &nbsp;AVERAGE SENDING DISPLACEMENT INCREMENT DX =&nbsp; 0.39397E-04&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; &nbsp;AVERAGE SENDING DISPLACEMENT INCREMENT DY =&nbsp; 0.21293E-03&lt;\/div&gt;&lt;div&gt;&nbsp; &nbsp; &nbsp;AVERAGE SENDING DISPLACEMENT INCREMENT DZ =&nbsp; 0.23668E-03&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;div&gt;&nbsp;*** ERROR ***&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;CP =&nbsp; &nbsp; &nbsp;240.430&nbsp; &nbsp;TIME= 23:33:12&lt;\/div&gt;&lt;div&gt;&nbsp;The system coupling service error notification: Error when making a&lt;\/div&gt;&lt;div&gt;&nbsp;remote call to participant Solution 1.&lt;\/div&gt;&lt;div&gt;&#8221;Mechanical_1\/Solution_SC_008.out&#8221; 1344L, 70742C&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&lt;\/div&gt;&lt;div&gt;&nbsp;&lt;\/div&gt;&lt;\/div&gt;&lt;div&gt;I am very new to fluent and I am not familiar with parallel computing. Can someone help me on resolving this issue? Thanks in advance&lt;\/div&gt;<\/p>\n","protected":false},"template":"","class_list":["post-390641","topic","type-topic","status-publish","hentry","topic-tag-fluidstructureinteraction-2"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["472782","199"],"_bbp_author_ip":["128.194.2.64"],"_btv_view_count":["279"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["390641"],"_bbp_forum_id":["27792"],"_bbp_engagement":["199","472782"],"_bbp_voice_count":["2"],"_bbp_reply_count":["11"],"_bbp_last_reply_id":["390698"],"_bbp_last_active_id":["390698"],"_bbp_last_active_time":["2024-10-21 15:51:38"]},"test":"sampathsrikanth1999tamu-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/390641","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\/390641\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=390641"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}