Allocating DBset size

Create a DBset Allocation modeling object to control the maximum size of the following Nastran DBsets:

• DBALL (contains all DMAP data blocks that can be saved permanently for reuse in a subsequent analysis)

• SCRATCH (a temporary DBset for all scratch data blocks and files)

• SCR300 (the temporary workspace for the modules)

For all of these DBsets, you can specify their maximum size in blocks, words, or bytes. For the SCRATCH and SCR300 DBsets, you can also specify a logical name and directory path.

If you include a DBset Allocation modeling object in your solution, when you solve your model, the software creates corresponding INIT and ASSIGN statements in the File Management section of your Nastran input file.

For more information, see Understanding DBsets, Using the INIT Statement, and Using the ASSIGN Statement in the Simcenter Nastran User's Guide.

Where do I find it?

• Choose Home tab→Properties group→Modeling Objects and then choose DBset Allocation from the Type menu.

• Choose Insert→Modeling Objects and then choose DBset Allocation from the Type menu.

• In the Create Solution or Edit Solution dialog box, click Create Modeling Object for the DBset Allocation option.

Learn more

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Controlling the Nastran iterative solver

Modeling thermal strain in a Nastran analysis

Printing bulk data in your results file

Customizing a Nastran input file with user defined text

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Allocating DBset size, Simcenter 3D 2021.1 Series

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