{"id":346375,"date":"2024-01-24T14:25:13","date_gmt":"2024-01-24T14:25:13","guid":{"rendered":"\/forum\/forums\/topic\/ansys-electronics-desktop-circuits-convolution-for-transient-simulation\/"},"modified":"2024-01-24T14:25:13","modified_gmt":"2024-01-24T14:25:13","slug":"ansys-electronics-desktop-circuits-convolution-for-transient-simulation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-electronics-desktop-circuits-convolution-for-transient-simulation\/","title":{"rendered":"Ansys Electronics Desktop &#8211; Circuits &#8211; Convolution for transient simulation"},"content":{"rendered":"<p>Hi everyone, I&#8217;m trying to perform some transient simulations for a rank of DDR3L SDRAMs on a PCB, but the simulation keeps failing because it requires more RAM (I have 64GB DDR4 RAM on my computer). Trying to see if I could make any changes in the simulation settings to make it less memory-consuming, I saw there is an option to enable a convolution-solving method. When I used it, it took much more time (about 24 hours of simulation) but it handled to do it without running out of memory.<\/p>\n<p>I want to have a better understanding of the implications of using either the default solving method (which I believe uses state space) or the convolution-solving method. Are they equivalent in terms of results accuracy? Why do they require different memory and time to solve?<\/p>\n","protected":false},"template":"","class_list":["post-346375","topic","type-topic","status-closed","hentry","topic-tag-ansys-electronics-desktop","topic-tag-circuits-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["43691","159026"],"_bbp_author_ip":["96.7.74.191"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["830"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["346375"],"_bbp_forum_id":["27793"],"_bbp_engagement":["43691","159026"],"_bbp_voice_count":["2"],"_bbp_reply_count":["9"],"_bbp_last_reply_id":["349167"],"_bbp_last_active_id":["349167"],"_bbp_last_active_time":["2024-02-05 15:41:33"]},"test":"lkammannnovo-space"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/346375","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\/346375\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=346375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}