{"id":353260,"date":"2024-02-22T19:10:39","date_gmt":"2024-02-22T19:10:39","guid":{"rendered":"\/forum\/forums\/topic\/findmodes-resets-the-random-number-generator\/"},"modified":"2024-02-22T19:10:39","modified_gmt":"2024-02-22T19:10:39","slug":"findmodes-resets-the-random-number-generator","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/findmodes-resets-the-random-number-generator\/","title":{"rendered":"`findmodes` resets the random number generator"},"content":{"rendered":"<pre>calling `findmodes` resets the random number generator, meaing that calling `findmodes; rand();` multiple times gives the same output.<br>running on 2023 R2.3<br>example to reproduce the bug;<br>```<br>clc;<br>cleardcard;<br>closeall;<br>newproject;<br>## design<br>addrect;<br>set(\"y\",0);set(\"y span\",1e-6);<br>set(\"x\",0);set(\"x span\",1e-6);<br>set(\"z\",0);set(\"z span\",0.2e-6);<br>set(\"material\", \"Si (Silicon) - Palik\");<br>## solver<br>addfde;<br>set(\"solver type\", \"2D X normal\");<br>set(\"x\",0);<br>set(\"y\",0);set(\"y span\",2e-6);<br>set(\"z\",0);set(\"z span\",1e-6);<br>set(\"number of trial modes\", 4);<br>set(\"mesh cells z\", 50);<br>set(\"mesh cells y\", 50);<br>## bug;<br>findmodes;<br>?rand(); # same number<br>findmodes;<br>?rand(); # same number<br>findmodes;<br>?rand(); # same number<br>findmodes;<br>?rand(); # same number<br>```<\/pre>\n","protected":false},"template":"","class_list":["post-353260","topic","type-topic","status-closed","hentry","topic-tag-bug","topic-tag-bug-report","topic-tag-FDE-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["66085","2592"],"_bbp_author_ip":["23.52.43.10"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["480"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["353260"],"_bbp_forum_id":["27833"],"_bbp_engagement":["2592","66085"],"_bbp_voice_count":["2"],"_bbp_reply_count":["17"],"_bbp_last_reply_id":["355198"],"_bbp_last_active_id":["355198"],"_bbp_last_active_time":["2024-03-04 15:42:17"]},"test":"amitrotem2tauex-tau-ac-il"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/353260","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\/353260\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=353260"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}