{"id":164724,"date":"2023-03-17T08:58:30","date_gmt":"2023-03-17T08:58:30","guid":{"rendered":"\/knowledge\/forums\/topic\/why-am-i-getting-the-polyflow-error-number-of-constraints-exceeded\/"},"modified":"2023-07-31T12:26:08","modified_gmt":"2023-07-31T12:26:08","slug":"why-am-i-getting-the-polyflow-error-number-of-constraints-exceeded","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-am-i-getting-the-polyflow-error-number-of-constraints-exceeded\/","title":{"rendered":"Why am I getting the POLYFLOW error &#8220;Number of constraints exceeded !&#8221;?"},"content":{"rendered":"<p>When running a large simulation case or a case that involves a lot of constraints (boundary conditions), POLYFLOW may be aborted before the first iteration with the error message &#8220;Number of constraints exceeded!&#8221;  In most cases, this can be circumvented by entering (or modifying) an option in the .p3rc file.  If running in POLYMAN, select the simulation and click on Tools > Options > Polyflow. In the box that appears, under \u00e2\u20ac\u0153Modify .p3rc configuration file\u00e2\u20ac\u009d, add  MCONTR 30   and run the simulation  If running in Workbench environment, right click on Solution cell and click on Preferences > Polyflow. In the box that appears, under \u00e2\u20ac\u0153Modify .p3rc configuration file\u00e2\u20ac\u009d, add  MCONTR 30  and run the simulation  If running simulations in standalone mode, then create a .p3rc file containing MCONTR 30 and launch the POLYFLOW calculation with the command  polyflow \u00e2\u20ac\u201cs .p3rc <file.dat> output.lst  The factor &#8217;30&#8217; is indicative and can be increased if the &#8216;Number of constraints exceeded!&#8217; message still appears. Then, run the calculation again.<\/p>\n","protected":false},"template":"","class_list":["post-164724","topic","type-topic","status-publish","hentry","topic-tag-fluid-dynamics","topic-tag-general","topic-tag-other","topic-tag-polyflow"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"When running a large simulation case or a case that involves a lot of constraints (boundary conditions), POLYFLOW may be aborted before the first iteration with the error message &quot;Number of constraints exceeded!&quot; In most cases, this can be circumvented by entering (or modifying) an option in the .p3rc file. 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If running in POLYMAN, select","og:url":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-am-i-getting-the-polyflow-error-number-of-constraints-exceeded\/","article:published_time":"2023-03-17T08:58:30+00:00","article:modified_time":"2023-07-31T12:26:08+00:00","twitter:card":"summary_large_image","twitter:title":"Why am I getting the POLYFLOW error \u201cNumber of constraints exceeded !\u201d? | Ansys Knowledge","twitter:description":"When running a large simulation case or a case that involves a lot of constraints (boundary conditions), POLYFLOW may be aborted before the first iteration with the error message &quot;Number of constraints exceeded!&quot; In most cases, this can be circumvented by entering (or modifying) an option in the .p3rc file. 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