Run Optimization

The -radopt run option is used to run the <name>.radopt Radioss optimization input file in OptiStruct. OptiStruct then looks for the Radioss Starter and Engine files within the same working directory.

Use Solver GUI

Set <name>.radopt as Input files and use "-radopt" as option.

To specify the number of SMP cores used by OptiStruct use the -nt option. For Radioss, specify the cores using -rnt and -rnp which are the same as the -np and -nt options when running a Radioss simulation.

Using Solver Scripts (Linux machines): [optistruct@host~]$ $ALTAIR_HOME/scripts/optistruct <name>.radopt -radopt
Using OptiStruct Solver Scripts (Windows machines): [optistruct@host~]$ $ALTAIR_HOME/hwsolvers/scripts/optistruct.bat <name>.radopt -radopt
Using Radioss Solver Scripts (Windows machines): [optistruct@host~]$ $ALTAIR_HOME/hwsolvers/scripts/radioss.bat <name>.radopt -radopt
Using Direct Calls to Executable (Linux machines): [optistruct@host~]$ $ALTAIR_HOME/hwsolvers/optistruct/bin/linux64/<optistruct_executable> <name>.radopt -radopt
Using Direct Calls to Executable (Windows machines): [optistruct@host~]$ $ALTAIR_HOME/hwsolvers/optistruct/bin/win64/<optistruct_executable> <name>.radopt -radopt

The Starter and Engine files (<name>_0000.rad and <name>_0001.rad) should be located in the same directory as <name>.radopt.

For MMO (Multi-Model Optimization) which with MMOCID=1 in /DTPL, then run with the command shown here.

[optistruct@host~]$ $ALTAIR_HOME/hwsolvers/optistruct/bin/win64/<optistruct_executable> -mmo <name>.fem

For example:

Two Load cases need be considered in optimization. Then create Radioss Optimization file <name>.radopt for each load case and create an .fem file (in this example is mmo_topo.fem) as shown below to define MMO. Run MMO with:

[optistruct@host~]$ $ALTAIR_HOME/hwsolvers/optistruct/bin/win64/<optistruct_executable> -mmo –mpi –np 3 –rnt 2  mmo_topo.fem