{"id":458730,"date":"2026-05-22T19:54:50","date_gmt":"2026-05-22T19:54:50","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ls-dyna-segmentation-fault-on-mpp-but-not-smp\/"},"modified":"2026-05-26T12:33:40","modified_gmt":"2026-05-26T12:33:40","slug":"ls-dyna-segmentation-fault-on-mpp-but-not-smp","status":"answered","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ls-dyna-segmentation-fault-on-mpp-but-not-smp\/","title":{"rendered":"LS-DYNA segmentation fault on MPP but not SMP"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;Hello all,&lt;\/p&gt;&lt;p&gt;I been having the same issue as described by Atish Gawale in a previous post: running simulations on a linux graphical interface through lsrun, where running on SMP single precision worked fine, but got a forrtl: severe (174): SIGSEGV, segmentation fault occurred when trying to run on MPP double-precision.&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2026\/05\/22-05-2026-1779480719-mceclip0.png\" \/>&lt;\/p&gt;&lt;p&gt;Has anyone found a fix\/reason for this issue?&lt;\/p&gt;&lt;p&gt;I have tried different versions of LS-Run and solver executables, and I still get the same issue: same error message w\/ MPP, but it works w\/ SMP.&lt;\/p&gt;&lt;p&gt;My simulation has no contact, it is a cubic lattice undergoing displacement controlled uniaxial compression. &lt;\/p&gt;&lt;p&gt;Best,&lt;\/p&gt;&lt;p&gt;K&lt;\/p&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-458730","topic","type-topic","status-answered","hentry","topic-tag-ansys-ls-dyna-1","topic-tag-error","topic-tag-ls-dyna","topic-tag-sigsegv-error"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27814"],"_bbp_topic_id":["458730"],"_bbp_subscription":["659990","58821"],"_bbp_author_ip":["2610:148:2002:4000:3248:5755:4741:1530"],"_bbp_last_reply_id":["458839"],"_bbp_last_active_id":["458839"],"_bbp_last_active_time":["2026-05-26 07:17:32"],"_bbp_reply_count":["3"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["659990","58821"],"_btv_view_count":["106"],"_bbp_topic_status":["answered"],"_edit_last":["659990"],"_bbp_revision_log":["a:1:{i:458731;a:2:{s:6:\"author\";i:659990;s:6:\"reason\";s:0:\"\";}}"]},"test":"kshi84gatech-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/458730","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":1,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/458730\/revisions"}],"predecessor-version":[{"id":458731,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/458730\/revisions\/458731"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=458730"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}