{"id":166815,"date":"2023-04-05T14:32:09","date_gmt":"2023-04-05T14:32:09","guid":{"rendered":"\/knowledge\/forums\/topic\/mechanical-can-solve-with-8-cores-but-not-with-12-two-processors-8-cores-each-mpi-test-runs-fine-bios-was-updated-hyperthreading-turned-off-also-smp-solves-work-but-dmp-does-not-solve-out-ends\/"},"modified":"2023-07-31T12:34:58","modified_gmt":"2023-07-31T12:34:58","slug":"mechanical-can-solve-with-8-cores-but-not-with-12-two-processors-8-cores-each-mpi-test-runs-fine-bios-was-updated-hyperthreading-turned-off-also-smp-solves-work-but-dmp-does-not-solve-out-ends","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/mechanical-can-solve-with-8-cores-but-not-with-12-two-processors-8-cores-each-mpi-test-runs-fine-bios-was-updated-hyperthreading-turned-off-also-smp-solves-work-but-dmp-does-not-solve-out-ends\/","title":{"rendered":"Mechanical can solve with 8 cores but not with 12. two processors 8 cores each. MPI test runs fine, BIOS was updated, hyperthreading turned off. Also SMP solves work but DMP does not.  Solve.out ends with:  *** NOTE ***                            CP =       7.781   TIME= 11:06:33  The PCG solver has automatically set the level of difficulty for this     model to 1."},"content":{"rendered":"<p>CB Defense software was installed and seemed to be blocking any Distributed runs. Also, seemed to be interfering with GPU usage.  Turned off CB Defense and distributed solves worked.  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MPI test runs fine, BIOS was updated, hyperthreading turned off. Also SMP solves work but DMP does not.  Solve.out ends with:  *** NOTE ***                            CP =       7.781   TIME= 11:06:33  The PCG solver has automatically set the level of difficulty for this     model to 1.\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/knowledge"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/knowledge\/topics\/"},{"label":"hpc","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic-tag\/hpc\/"},{"label":"Mechanical can solve with 8 cores but not with 12. two processors 8 cores each. MPI test runs fine, BIOS was updated, hyperthreading turned off. Also SMP solves work but DMP does not.  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