{"id":319458,"date":"2023-11-25T18:15:17","date_gmt":"2023-11-25T18:15:17","guid":{"rendered":"\/forum\/forums\/topic\/ansys-work-bench-thermal-steady-state-structrual-anlysis\/"},"modified":"2023-11-26T06:43:26","modified_gmt":"2023-11-26T06:43:26","slug":"ansys-work-bench-thermal-steady-state-structrual-anlysis","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-work-bench-thermal-steady-state-structrual-anlysis\/","title":{"rendered":"ANSYS WORK BENCH – THERMAL STEADY STATE + STRUCTRUAL ANLYSIS"},"content":{"rendered":"

Dear Experts,<\/span><\/p>\n

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I am running a subject FE model having 5 million nodes (1 million elements) and facing memory shortage issues as per below error. I optimized mesh and cannot go below to 1 million elements due to result accuracy. <\/span><\/p>\n

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*** ERROR *** CP =     671.688   TIME= 23:25:31<\/strong><\/span>
 An input\/output error has occurred on the process with MPI Rank ID = 0.<\/strong><\/span> This error occurs when trying to open a file with length = 110 GB.    <\/strong><\/span> Please check to make sure there is enough free disk space in the <\/strong><\/span>working directory. <\/strong><\/span><\/p>\n

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My Machine Configuration as below:<\/span><\/p>\n

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RAM 128 GB + 4 cores (I have also tried with and without “distributed” option also).<\/span><\/p>\n

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Available virtual memory – 130 GB<\/span><\/p>\n

Paging file – 19GB.<\/span><\/p>\n

Work Space memory – 1 GB<\/span><\/p>\n

Data Space memory – 2GB<\/span><\/p>\n

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Solver handler – My Computer with 4 cores ( i did not select for My Computer background as i have only one ANSYS Licence)<\/span><\/p>\n

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I have tried with direct \/ Iteration solver method having 100 sub steps. But No sucess. Is Iteration solver will consume less memory size ?. please advise.<\/span><\/p>\n

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Please give light on how to fix this error. Also give some clarity on requied RAM size , Work space \/ Data Space memory size, Paging file size and virtual memory size for solving these size of FE model in general  as i am not much familiar to this settings \/ details.<\/span><\/p>\n

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Thank you in advance.<\/span><\/p>\n

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Regards<\/span><\/p>\n

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AE.<\/span><\/p>\n

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