{"id":294415,"date":"2023-07-23T19:13:37","date_gmt":"2023-07-23T19:13:37","guid":{"rendered":"\/forum\/forums\/topic\/ansys-workbench-mechanical-topology-optimization-mapdl-error\/"},"modified":"2023-08-08T09:33:53","modified_gmt":"2023-08-08T09:33:53","slug":"ansys-workbench-mechanical-topology-optimization-mapdl-error","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-workbench-mechanical-topology-optimization-mapdl-error\/","title":{"rendered":"ANSYS Workbench &#8211; Mechanical &#8211; Topology Optimization &#8211; MAPDL Error"},"content":{"rendered":"<p>I am trying to run a topology optimization for a part, however I keep getting the following message.<\/p>\n<div>&#8220;the optimization solution run was terminated. check the solver output on the solution information object for possible causes&#8221;<\/div>\n<div><\/div>\n<div>I then open the &#8220;Open Solver File Directory&#8221; to view\u00a0if I am getting any error files or issues.<\/div>\n<div>I have a topo.err file that says the following.<\/div>\n<div>\n*** WARNING ***<br \/>\nThe optimization problem cannot be solved. Please reformulate your problem.<\/p>\n<p>*** ERROR ***<br \/>\nMAPDL solver terminated unexpectedly with error code 99. For more information check solver output.<\/p>\n<p>*** WARNING ***<br \/>\nFile &#8216;numCPU.dat&#8217; not found.\n<\/p><\/div>\n<div>Below is the topo.out file.<\/div>\n<div>\n<div>\u00a0&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/div>\n<div>\u00a0&#8212;&#8212;&#8212;-\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Welcome to Topology Optimizer\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 &#8212;&#8212;&#8212;&#8211;<\/div>\n<div>\u00a0&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/div>\n<div><\/div>\n<div>\u00a0 \u00a0 \u00a0 \u00a0Version 2022 R2 (Build: 194) from 20220527<\/div>\n<div><\/div>\n<div>\u00a0 \u00a0 \u00a0 \u00a0Copyright 2022 ANSYS Inc. All Rights Reserved<\/div>\n<div><\/div>\n<div>\u00a0&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/div>\n<div><\/div>\n<div>\u00a0 \u00a0 \u00a0 \u00a0Execution time: Sun Jul 23 13:45:59 2023<\/div>\n<div><\/div>\n<div>\u00a0&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/div>\n<div><\/div>\n<div>\u00a0 \u00a0Parameter setting:<\/div>\n<div>\u00a0 \u00a0 \u00a0 solver\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0= Scpip<\/div>\n<div>\u00a0 \u00a0 \u00a0 ansys version\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 = 2022 R2<\/div>\n<div>\u00a0 \u00a0 \u00a0 design elements\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 = OptimizationRegionElements.dat<\/div>\n<div>\u00a0 \u00a0 \u00a0 feedersystem list:<\/div>\n<div>\u00a0 \u00a0 \u00a0 \u00a0&#8211; Static system &#8216;Static25&#8217; with id 25: 1 load case(s) at t = 1<\/div>\n<div>\u00a0 \u00a0 \u00a0 filter mode\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 = 1<\/div>\n<div>\u00a0 \u00a0 \u00a0 penalty parameter\u00a0 \u00a0 \u00a0 \u00a0 = 3<\/div>\n<div>\u00a0 \u00a0 \u00a0 minimum member size\u00a0 \u00a0 \u00a0 = 0<\/div>\n<div>\u00a0 \u00a0 \u00a0 maximum member size\u00a0 \u00a0 \u00a0 = 0<\/div>\n<div>\u00a0 \u00a0 \u00a0 minimum density\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 = 0.001<\/div>\n<div>\u00a0 \u00a0 \u00a0 initial response scaling = yes<\/div>\n<div>\u00a0 \u00a0 \u00a0 boundary padding\u00a0 \u00a0 \u00a0 \u00a0 \u00a0= true,bounds,vol<\/div>\n<div>\u00a0 \u00a0 \u00a0 restart information\u00a0 \u00a0 \u00a0 = final<\/div>\n<div>\u00a0 \u00a0 \u00a0 mapdl ncnv\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0= 1e+12<\/div>\n<div>\u00a0 \u00a0 \u00a0 maximum iteration\u00a0 \u00a0 \u00a0 \u00a0 = 500<\/div>\n<div>\u00a0 \u00a0 \u00a0 acc\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 = 0.001<\/div>\n<div>\u00a0 \u00a0 \u00a0 units\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 = MPA<\/div>\n<div>\u00a0 \u00a0 \u00a0 output frequency\u00a0 \u00a0 \u00a0 \u00a0 \u00a0= 1<\/div>\n<div>\u00a0 \u00a0 \u00a0 max intermediate files\u00a0 \u00a0= 500<\/div>\n<div>\u00a0 \u00a0 \u00a0 dynamic max approach\u00a0 \u00a0 \u00a0= true, 0.9<\/div>\n<div>\u00a0 \u00a0 \u00a0 objective 1\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 = single compliance (force load) for load step 1 of feeder system &#8216;Static25&#8217; [1]<\/div>\n<div>\u00a0 \u00a0 \u00a0 constraint 1\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0= total mass with lower bound 60 and upper bound 60<\/div>\n<div>\u00a0 \u00a0 \u00a0 constraint 2\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0= global equivalent (von-Mises) stress for load step number 1 of feeder system &#8216;Static25&#8217; with upper bound 227.273<\/div>\n<div>\u00a0 \u00a0 \u00a0 method\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0= SCP<\/div>\n<div>\u00a0 \u00a0 \u00a0 acc scp\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 = 1e-06<\/div>\n<div>\u00a0 \u00a0 \u00a0 version scp\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 = 402<\/div>\n<div>\u00a0 \u00a0 \u00a0 cut off in scp\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0= 1<\/div>\n<div>\u00a0 \u00a0 \u00a0 linear inequalities remain in active set in scp = selected always<\/div>\n<div>\u00a0 \u00a0 \u00a0 initial penalty scp\u00a0 \u00a0 \u00a0 = 1<\/div>\n<div>\u00a0 \u00a0 \u00a0 move limit scp\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0= 0.5<\/div>\n<div>\u00a0 \u00a0 \u00a0 asymptote strategy\u00a0 \u00a0 \u00a0 \u00a0= program controlled<\/div>\n<div><\/div>\n<div>\u00a0&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/div>\n<div>\u00a0 \u00a0Start generating constant data&#8230;<\/div>\n<div>\u00a0 \u00a0&#8230;done<\/div>\n<div>\u00a0 \u00a0Start generating tree&#8230;<\/div>\n<div>\u00a0 \u00a0&#8230;finished.<\/div>\n<div>\u00a0 \u00a0Start generating element neighborhood&#8230;<\/div>\n<div>\u00a0 \u00a0 10 Percent done<\/div>\n<div>\u00a0 \u00a0 20 Percent done<\/div>\n<div>\u00a0 \u00a0 30 Percent done<\/div>\n<div>\u00a0 \u00a0 40 Percent done<\/div>\n<div>\u00a0 \u00a0 50 Percent done<\/div>\n<div>\u00a0 \u00a0 60 Percent done<\/div>\n<div>\u00a0 \u00a0 70 Percent done<\/div>\n<div>\u00a0 \u00a0 80 Percent done<\/div>\n<div>\u00a0 \u00a0 90 Percent done<\/div>\n<div>\u00a0 \u00a0100 Percent done<\/div>\n<div>\u00a0 \u00a0&#8230;finished.<\/div>\n<div>\u00a0Determine regions where minimum member size cannot be satisfied.<\/div>\n<div>\u00a0 \u00a0Starting MAPDL&#8230;<\/div>\n<div><\/div>\n<div>\u00a0*** WARNING ***<\/div>\n<div>\u00a0The optimization problem cannot be solved. Please reformulate your problem.<\/div>\n<div><\/div>\n<div><\/div>\n<div>\u00a0*** ERROR ***<\/div>\n<div>\u00a0MAPDL solver terminated unexpectedly with error code 99. For more information check solver output.<\/div>\n<div><\/div>\n<div><\/div>\n<div>\u00a0 FINAL SUMMARY<\/div>\n<div>\u00a0 &#8212;&#8212;&#8212;&#8212;-<\/div>\n<div>\u00a0 Total number of model evaluations: 0<\/div>\n<div><\/div>\n<div>\u00a0 Objective(s):<\/div>\n<div>\u00a0 \u00a0 [\u00a0 1] Name: Objective<\/div>\n<div>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Value : 1.79769e+308<\/div>\n<div><\/div>\n<div>\u00a0 Constraint(s):<\/div>\n<div>\u00a0 \u00a0 [\u00a0 1] Name: Mass Constraint_64<\/div>\n<div>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 LB: 6.00000e+01 &lt;= Value: 1.79769e+308 &lt;= UB: 6.00000e+01\u00a0 Deviation: inf %<\/div>\n<div>\u00a0 \u00a0 [\u00a0 2] Name: Global Stress Constraint_71<\/div>\n<div>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Value: 1.79769e+308 &lt;= UB: 2.27273e+02\u00a0 Deviation: 7.90985e+307 % NOTE: This is an approximation to the actual value: 0.<\/div>\n<div><\/div>\n<div>\u00a0*** WARNING ***<\/div>\n<div>\u00a0File &#8216;numCPU.dat&#8217; not found.<\/div>\n<div><\/div>\n<div>\u00a0&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/div>\n<div>\u00a0&#8211;&gt; Topology Optimizer finished with errors<\/div>\n<div>\u00a0 \u00a0 \u00a0Total time:\u00a0 0h 2m 1s<\/div>\n<div>\u00a0 \u00a0 \u00a0CPU time:\u00a0 \u00a0 0h 0m 0s<\/div>\n<div>\u00a0 \u00a0 \u00a0Peak Memory: 172968 K<\/div>\n<div>\u00a0 \u00a0 \u00a0I\/O Read:\u00a0 \u00a0 48568849 Bytes<\/div>\n<div>\u00a0 \u00a0 \u00a0I\/O Write:\u00a0 \u00a0928365 Bytes<\/div>\n<div>\u00a0&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/div>\n<div><\/div>\n<div>Below is the solve.out file.<\/div>\n<div><\/div>\n<div>\u00a0*** FATAL ***<br \/>\nAttempt to run ANSYS in a distributed mode failed.<br \/>\nThe Distributed ANSYS process with MPI Rank ID = \u00a0 \u00a01 is not responding.<br \/>\nPlease refer to the Distributed ANSYS Guide for detailed setup and configuration information.<\/div>\n<div><\/div>\n<div>I have looked at some other forums, but I can&#8217;t seem to figure out the issue.<\/div>\n<\/div>\n<div><\/div>\n<div>I don&#8217;t know if I need to change someting in the &#8220;Advanced Properties&#8221; in the &#8220;Solve Process Settings&#8221;.<\/div>\n","protected":false},"template":"","class_list":["post-294415","topic","type-topic","status-closed","hentry","topic-tag-2dmaterialsandmetals-1","topic-tag-error","topic-tag-topology-optimization"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I am trying to run a topology optimization for a part, however I keep getting the following message. &quot;the optimization solution run was terminated. check the solver output on the solution information object for possible causes&quot; I then open the &quot;Open Solver File Directory&quot; to view if I am getting any error files or issues. 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