{"id":238303,"date":"2022-10-21T01:16:08","date_gmt":"2022-10-21T01:16:08","guid":{"rendered":"\/forum\/forums\/topic\/inverse-design-package-with-lumapi-and-lumopt\/"},"modified":"2022-10-21T01:16:08","modified_gmt":"2022-10-21T01:16:08","slug":"inverse-design-package-with-lumapi-and-lumopt","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/inverse-design-package-with-lumapi-and-lumopt\/","title":{"rendered":"Inverse design package with Lumapi and LumOpt"},"content":{"rendered":"
Hi all,<\/div>\n
 <\/div>\n
Our research group wants to use the inverse design function of Lumerical and we started with the example – 2D Ysplitter problem in the Lumerical example gallery. We are referring to this tutorial:  the https:\/\/lumopt.readthedocs.io\/en\/latest\/tutorial.html<\/a><\/div>\n
 <\/div>\n
We keep encountering issues when running the splitter_opt_2D.py file. Here is what I did to install LumOpt and run the file.<\/div>\n
 <\/div>\n
I typed all of these commands in a VSCode terminal on a windows10 desktop and I am using python3 and the latest version of Lumerical.<\/div>\n
 <\/div>\n
1. First, I entered the directory where lumapi locates with the command:<\/div>\n
cd “C:\\Program Files\\Lumerical|v222\\api\\python”<\/div>\n
 <\/div>\n
2. then I cloned the github repo mentioned in the tutorial by:<\/div>\n
git clone https:\/\/github.com\/chriskeraly\/LumOpt.git<\/a><\/span><\/div>\n
After this operation, I could see I have LumOpt under “<\/span>C:\\Program Files\\Lumerical|v222\\api\\python”<\/div>\n
 <\/div>\n
3.Then I enter the LumOpt folder with:<\/span><\/div>\n
cd “C:\\Program Files\\Lumerical\\v222\\api\\python\\LumOpt”<\/div>\n
and run the setup file with:<\/div>\n
python setup.py develop –install-dir ‘C:\\Program Files\\Lumerical\\v222\\api\\python\\LumOpt’<\/div>\n
From the output information, I can see all of the package requirements are satisfied.<\/div>\n
 <\/div>\n
4.To make sure the splitter_opt_2D.py can import the packages from lumopt successfully, I add two lines in the splitter_opt_2D.py, which are:<\/div>\n
sys.path.append(“C:\\\\Program Files\\\\Lumerical\\\\v222\\\\api\\\\python\\\\”)<\/div>\n
\n
sys.path.append(“C:\\\\Program Files\\\\Lumerical\\\\v222\\\\api\\\\python\\\\LumOpt\\\\”)<\/div>\n<\/div>\n
and I tried to run splitter_opt_2D.py with the command:<\/div>\n
python ‘C:\\Program Files\\Lumerical\\v222\\api\\python\\LumOpt\\examples\\Ysplitter\\splitter_opt_2D.py’<\/div>\n
 <\/div>\n
5. I can see the Lumerical window opens but after some quick initialization, an error was reported:<\/div>\n
AttributeError: ‘SnapShots’ object has no attribute ‘_tmpdir’<\/div>\n
and the Lumerical window quited quickly.<\/div>\n
 <\/div>\n
Any help will be highly appreciated!<\/div>\n","protected":false},"template":"","class_list":["post-238303","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["265193","30281"],"_bbp_author_ip":["23.56.168.214"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["757"],"_bbp_likes_count":["1"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["238303"],"_bbp_forum_id":["27833"],"_bbp_engagement":["30281","265193"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["238536"],"_bbp_last_active_id":["238536"],"_bbp_last_active_time":["2022-10-24 16:23:17"]},"test":"wenyizhaandrew-cmu-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/238303","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\/238303\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=238303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}