dump_ctu_constraints

dump_ctu_constraints 
[-all] | [[-tech][-design][-default]] 
[-members [true|false]] 
[-group s_groupName] 
[-db {tech | design}] 
[-constraint s_constraintName] 
[-name_space {0A2.0 | OA2.2 | default}] 
[-file s_fileName] 
[-report_group [true | false]] 
[{-layer s_layerName 
|{[-layer1 s_layerName] [-layer2 s_layerName]}} 
| -layer_array {s_layerName…}] 
[-model {OXIDE1 | OXIDE2 | OXIDE3 | OXIDE4}]

Description

Outputs Tcl commands for constraints in the current Space-based Router and Chip Optimizer database, including derived and local constraints. The Tcl commands can be cut and pasted into a script or interactively to add or update constraints. By default, all constraints are output to the Transcript area. Options let you output to a file and limit the scope to specific constraints or constraint groups.

Arguments

`-all`	Includes constraints from all constraint groups. This is the default.
`-constraint` s_constraintName
	Limits output to the specified constraint. By default, all constraints are considered.
`-db {tech\|design}`	Specifies the name of the database in which to find the group. Default: First design database and then technology database is searched.
`-default`	Equivalent to the OA 2.0 default route spec. Applies to any routes that do not have a route spec on them or on their net.
`-design`	Includes constraints related to a specific design (`DesignRules`).
`-file` s_fileName	Output the Tcl commands to the given file.
`-group` s_groupName	Limits output to the specified constraint group. By default all constraint groups are considered.
`-layer` s_layerName	Limits constraints to single layer constraints on the given layer.
`-layer1` s_layerName	Limits constraints to layer pair constraints with the given first layer.
`-layer2` s_layerName	Limits constraints to layer pair constraints with the given second layer.
`-layer_array` {s_layerName…}
	Limits constraints to layer array constraints with the given list of layers.
`-members [true\|false]`	Controls whether member constraints are included. Defaults to `false.`
`-model {OXIDE1 \| OXIDE2 \| OXIDE3 \| OXIDE4}`
	Limits constraints to antenna constraints with the given model name.
`-name_space {OA2.0 \| OA2.2 \| default}`
	Specifies the format for the constraint names to output.
	`OA2.0`	Outputs names in OA2.0 format (for example, `minSpaceRule`).
	`OA2.2`	Outputs names in OA2.2 format (for example, `minSpacing`).
	`default`	Outputs names in OA2.0 format for pre-OA2.2 design databases; uses OA2.2 for all others. This is the default.
`-report_group [true \| false]`
	Controls whether the `-group` s_groupName argument is included with each constraint. This is useful for comparing output from different Space-based Router and Chip Optimizer versions. Defaults to `false`.
`-tech`	Includes constraints from the foundry constraint group.

Examples

Requests Tcl commands for all constraints and shows some of the output.

dump_ctu_constraints
Foundry:
  Constraint group CG__1 (id = 1, 116 items):
  #create_constraint_group -name CG__1 -type foundry
    set_layer_constraint -layer PC -constraint minSpacing -hardness hard \
     -Value 0.2
    set_layer_constraint -layer PC -constraint minWidth -hardness hard \
     -Value 0.2 …

Requests Tcl commands for the Metal1 layer constraints of the singlestacked constraint group.

dump_ctu_constraints -layer Metal1 -group singlestacked

Outputs Tcl commands to a file for all constraints in the foundry and design constraint groups.

dump_ctu_constraints -file myconstraints.tcl -tech -design

Virtuoso Space-based Router Constraint Reference
Product Version IC23.1, June 2023