{"id":290142,"date":"2023-06-23T16:20:30","date_gmt":"2023-06-23T16:20:30","guid":{"rendered":"\/forum\/forums\/topic\/running-system-coupling-examples-on-hpc\/"},"modified":"2023-07-03T17:15:47","modified_gmt":"2023-07-03T17:15:47","slug":"running-system-coupling-examples-on-hpc","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/running-system-coupling-examples-on-hpc\/","title":{"rendered":"Running System Coupling Examples on HPC"},"content":{"rendered":"<p><span style=\"font-size: 12pt\">Hi all,<\/span><\/p>\n<p><span style=\"font-size: 12pt\">I am trying to run the system coupling tutorial (reed valve and oscillating plate) using Ansys 2021 R1 on HPC. I made a bash script based on the answer from user <strong>PHutch<\/strong> on this <a href=\"\/forum\/forums\/topic\/mpi-problem-when-running-system-coupling-on-linux-hpc-cluster\/\" target=\"_blank\" rel=\"noopener\">thread<\/a> to run the system coupling reed valve and oscillating plate examples (pictures attached).<\/span><\/p>\n<p><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/23-06-2023-1687535285-runFSI.sh.jpg\"><img decoding=\"async\" title=\"runFSI.sh\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/23-06-2023-1687535285-runFSI.sh.jpg\" alt=\"Bash script\"><\/a><\/p>\n<p><span style=\"font-size: 10pt\">*) The runFSI.txt file in the bash script above only contains two command, <strong>Open()<\/strong> and <strong>Solve()<\/strong><\/span><\/p>\n<p><span style=\"font-size: 14pt\"><span style=\"font-size: 12pt\">At first, I could run the reed valve using single core example without any problem, but when I am trying to use more than two cores, the log file shows that only two cores that is requested by the system coupling (picture attached).<\/span><br \/><\/span><\/p>\n<p><span style=\"font-size: 14pt\"><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/23-06-2023-1687535720-Core.jpg\"><img decoding=\"async\" title=\"Core\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/23-06-2023-1687535720-Core.jpg\" alt=\"Maximum number of cores\"><\/a><\/span><\/p>\n<p><span style=\"font-size: 12pt\">For the oscillating plate example, I also using trying to run the example on the HPC using bash script above, but it did not work at all. When I checked the log file, the system coupling could not connect to the CFX participant (picture attached).<\/span><\/p>\n<p><span style=\"font-size: 14pt\"><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/23-06-2023-1687536279-Logfile.jpg\"><img decoding=\"async\" title=\"Awaiting Connections\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/23-06-2023-1687536279-Logfile.jpg\" alt=\"\"><\/a><\/span><\/p>\n<p><span style=\"font-size: 12pt\">In the error log file, I found out that CFX invoke command line option -mpi (picture attached) even though I did not put -mpi additional argument in the runFSI.txt file.<\/span><\/p>\n<p><span style=\"font-size: 14pt\"><a class=\"wp-colorbox-image cboxElement\" href=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/23-06-2023-1687536727-MPI.jpg\"><img decoding=\"async\" title=\"MPI\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/06\/23-06-2023-1687536727-MPI.jpg\" alt=\"\"><\/a><\/span><\/p>\n<p><span style=\"font-size: 12pt\">Is there any suggestions on how to use more than two cores for the system coupling and how to run structural-CFX coupling oscillating plate example using HPC?<\/span><\/p>\n<p><span style=\"font-size: 12pt\">Thank you.<\/span><\/p>\n","protected":false},"template":"","class_list":["post-290142","topic","type-topic","status-closed","hentry","topic-tag-2-way-fsi","topic-tag-hpc","topic-tag-system-coupling"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["284055","13659"],"_bbp_author_ip":["23.206.193.154"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["804"],"_edit_lock":["1688648790:216952"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["290142"],"_bbp_forum_id":["27796"],"_bbp_engagement":["13659","284055"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["292522"],"_bbp_last_active_id":["292522"],"_bbp_last_active_time":["2023-07-11 12:51:05"]},"test":"nwirawan1sheffield-ac-uk"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/290142","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\/290142\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=290142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}