Product Documentation
Virtuoso Studio Design Environment User Guide
Product Version IC23.1, November 2023

12


Design Object Limits in OpenAccess

All managed objects in an OpenAccess database are referenced using a 32-bit value, so the theoretical limit of any one type of object in a database is:

2^32 = 4,294,967,296

However, the actual number of any one type of object is often less than the theoretical limit.

OpenAccess has limited the total number of string-based objects (oaShapes) to this theoretical limit of 4,294,967,296 and the total number of named objects to around 2,147,483,648.

The table below lists the most common design data types and the maximum number of each type that can be safely created.

Object Type Limit Notes

oaAppObject

4,294,967,295

oaBlockage

4,294,967,295

Area blockages with 4-pt polygons

oaInst

2,147,483,647

Auto-named and named scalarInsts

oaInstTerm

2,147,483,647

oaNet

2,147,483,647

Auto-named and named scalarInsts

oaPin

2,147,483,645

oaProp

4,294,967,295

oaRoute

4,294,967,295

Empty routes, no beginConn or endConn

oaShape

4,294,967,294

oaTerm

2,147,483,647

oaVia

1,431,655,765

Related Topics

Importing and Exporting Designs

Save As Form


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