{"id":159107,"date":"2021-06-02T18:44:12","date_gmt":"2021-06-02T18:44:12","guid":{"rendered":"\/forum\/forums\/topic\/issue-starting-lumerical-fdtd-via-python-api\/"},"modified":"2022-05-12T17:24:19","modified_gmt":"2022-05-12T17:24:19","slug":"issue-starting-lumerical-fdtd-via-python-api","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/issue-starting-lumerical-fdtd-via-python-api\/","title":{"rendered":"Issue starting Lumerical FDTD via Python API"},"content":{"rendered":"
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\n

Hello,<\/p>\n

I am running into an issue where I can run FDTD simulations via the GUI, but I cannot run them via the Python API. If I try to run the following line:<\/p>\n

fdtd = lumapi.FDTD(hide=False)<\/p>\n

The execution will just hang indefinitely. If I kill the script, I get the following error output:<\/p>\n

Traceback (most recent call last):<\/p>\n

 File "\/home\/rhome\/rollij2\/lumerical\/gf_grating_coupler\/45spclo\/sin_gc_uniform_base_sim.py", line 502, in <module><\/p>\n

  with lumapi.FDTD(hide=False) as fdtd:<\/p>\n

 File "\/opt\/lumerical\/v211\/api\/python\/lumapi.py", line 1294, in __init__<\/p>\n

  super(FDTD, self).__init__('fdtd', filename, key, hide, serverArgs, **kwargs)<\/p>\n

 File "\/opt\/lumerical\/v211\/api\/python\/lumapi.py", line 1072, in __init__<\/p>\n

  self.handle = open(product, key, hide, serverArgs)<\/p>\n

 File "\/opt\/lumerical\/v211\/api\/python\/lumapi.py", line 231, in open<\/p>\n

  h = iapi.appOpen(url, k)<\/p>\n

KeyboardInterrupt<\/p>\n

Exception ignored in: <function Lumerical.__del__ at 0x7f84e04f6790><\/p>\n

Traceback (most recent call last):<\/p>\n

 File "\/opt\/lumerical\/v211\/api\/python\/lumapi.py", line 1170, in __del__<\/p>\n

  close(self.handle)<\/p>\n

AttributeError: 'FDTD' object has no attribute 'handle'<\/p>\n

<\/p>\n<\/p>\n

So it looks like it is getting stuck when it is trying to open an FDTD instance. This issue just started appearing today, seemingly out of nowhere. Any help in debugging or fixing the issue is greatly appreciated.<\/p>\n","protected":false},"template":"","class_list":["post-159107","topic","type-topic","status-closed","hentry","topic-tag-api","topic-tag-lumerical","topic-tag-python"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":[""],"_bbp_old_reply_author_name_id":["Anonymous"],"_bbp_old_is_reply_anonymous_id":["false"],"_btv_view_count":["4628"],"_bbp_likes_count":["0"],"_bbp_subscription":["262799","289783","26207","67701"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["159107"],"_bbp_forum_id":["27833"],"_bbp_engagement":["2592","4274","26207","59768","67701","81835","85781","191209","201202","243069","262799","289783"],"_bbp_voice_count":["12"],"_bbp_reply_count":["25"],"_bbp_last_reply_id":["307798"],"_bbp_last_active_id":["307798"],"_bbp_last_active_time":["2023-09-21 06:59:31"]},"test":"rollij2rpi-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/159107","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\/159107\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=159107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}