{"id":319996,"date":"2023-11-29T10:41:54","date_gmt":"2023-11-29T10:41:54","guid":{"rendered":"\/forum\/?post_type=topic&p=319996"},"modified":"2023-11-29T10:41:54","modified_gmt":"2023-11-29T10:41:54","slug":"segmentation-fault-error","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/segmentation-fault-error\/","title":{"rendered":"Segmentation (fault) error"},"content":{"rendered":"

We received the segmentation error at various timesteps for the same model just increasing the speed linearly as shown below. I tried to solve implementing various solver parameters like double-precision, medium priority hardware sources and so on. It is interesting that the error occurs inconsistently. Therefore, it is not easy to diagnosis from my point of view. All the models run on a cluster using single-precision Dyna solver with ncpu=48 & 16GB as shown below.<\/p>\n

Can you please let me know about your comments to find out the source of the problem? Partially the slurm file shared below.<\/p>\n

———————————————————————–<\/p>\n

30kph<\/strong><\/p>\n

     node  number 362930 deleted at time  4.5900E-03<\/strong><\/p>\n

forrtl: severe (174): SIGSEGV, segmentation fault occurred<\/p>\n

 <\/p>\n

60kph<\/strong><\/p>\n

      node  number 387621 deleted at time  3.7800E-03<\/strong><\/p>\n

forrtl: severe (174): SIGSEGV, segmentation fault occurred<\/p>\n

 <\/p>\n

90kph<\/strong><\/p>\n

     solid element 330148  failed at time  2.9691E-03<\/strong><\/p>\n

forrtl: severe (174): SIGSEGV, segmentation fault occurred<\/p>\n

 <\/p>\n

120kph<\/strong><\/p>\n

     shell element 584554  failed at time  1.1339E-02<\/strong><\/p>\n

forrtl: severe (174): SIGSEGV, segmentation fault occurred<\/p>\n

——————————————————————————<\/p>\n

#SBATCH –ntasks=48
#SBATCH –partition=k2-hipri
#SBATCH –nodes=1
#SBATCH –mem-per-cpu=16G<\/em><\/p>\n","protected":false},"template":"","class_list":["post-319996","topic","type-topic","status-closed","hentry","topic-tag-compositematerials-1","topic-tag-structural","topic-tag-transient"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":["96.7.218.215"],"_bbp_subscription":["48610","37202"],"_btv_view_count":["2736"],"_edit_lock":["1701276079:224091"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["319996"],"_bbp_forum_id":["27814"],"_bbp_engagement":["37202","48610"],"_bbp_voice_count":["2"],"_bbp_reply_count":["8"],"_bbp_last_reply_id":["320505"],"_bbp_last_active_id":["320505"],"_bbp_last_active_time":["2023-12-01 16:35:54"]},"test":"ekayar01qub-ac-uk"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/319996","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\/319996\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=319996"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}