{"id":346780,"date":"2024-01-26T13:56:48","date_gmt":"2024-01-26T13:56:48","guid":{"rendered":"\/forum\/forums\/reply\/346780\/"},"modified":"2024-01-26T13:56:48","modified_gmt":"2024-01-26T13:56:48","slug":"346780","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/346780\/","title":{"rendered":"Reply To: Error when running a topology optimization on a cluster (Linux)"},"content":{"rendered":"<p>&lt;p&gt;We installed Lumerical v241 on the cluster. I am actually now running into the following error when running lumtest.py on the cluster with the new version:&lt;br&gt;&lt;br&gt;Traceback (most recent call last):&lt;br&gt;&nbsp; File &#8220;\/home\/ojanen4\/lumtest.py&#8221;, line 12, in &lt;module&gt;&lt;br&gt;&nbsp; &nbsp; fdtd = lumapi.FDTD()&lt;br&gt;&nbsp; File &#8220;\/home\/opt\/Lumerical\/v241\/api\/python\/lumapi.py&#8221;, line 1541, in __init__&lt;br&gt;&nbsp; &nbsp; super(FDTD, self).__init__(&#8216;fdtd&#8217;, filename, key, hide, serverArgs, remoteArgs, **kwargs)&lt;br&gt;&nbsp; File &#8220;\/home\/opt\/Lumerical\/v241\/api\/python\/lumapi.py&#8221;, line 1196, in __init__&lt;br&gt;&nbsp; &nbsp; handle = self.__open__(iapi, product, key, hide, serverArgs, remoteArgs)&lt;br&gt;&nbsp; File &#8220;\/home\/opt\/Lumerical\/v241\/api\/python\/lumapi.py&#8221;, line 1415, in __open__&lt;br&gt;&nbsp; &nbsp; raise LumApiError(error)&lt;br&gt;lumapi.LumApiError: &#8216;Exception [&lt;Global&gt;::appOpened]: Session not found'&lt;br&gt;&lt;br&gt;This occurs at line &#8220;fdtd = lumapi.FDTD()&#8221;. This worked fine in the older version. What could be causing this?&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-346780","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/346780","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/346780\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=346780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}