Methods, systems, and computer program product for dynamically abstracting virtual hierarchies for an electronic design

• US 10,210,299 B1
• Filed: 09/30/2016
• Issued: 02/19/2019
• Est. Priority Date: 09/30/2016
• Status: Active Grant

• Current Assignee: Cadence Design Systems Incorporated (Cadence Group)
• Original Assignee: Cadence Design Systems Incorporated (Cadence Group)
• Inventors: Ginetti, Arnold
• Primary Examiner(s): Kik, Phallaka
• Application Number:
  US15/283,042
• Time in Patent Office: 872 Days
• Field of Search: 716118, 716139, 716124, 716125, 716131, 703 14
• CPC Class Codes: G06F 2111/12 Symbolic schematics
• CPC Class Codes: G06F 30/392 Floor-planning or layout, e.g. partitioning or placement
• CPC Class Codes: G06F 30/398 Design verification or optimisation, e.g. using design rule check [DRC], layout versus schematics [LVS] or finite element methods [FEM] optical proximity correction [OPC] design processes G03F1/36

Abstract

Disclosed are methods, systems, and articles of manufacture for dynamically abstracting virtual hierarchies for an electronic design. These techniques identify at least a portion of a layout of an electronic design and a virtual hierarchy in the layout portion according to a value for a display stop level. A plurality of figure groups at one or more virtual hierarchies in the layout portion may also be identified in the layout portion. These techniques select a plurality of layout circuit component designs according to the virtual hierarchy. The layout portion may then be abstracted into an abstracted layout portion at least by displaying the plurality of layout circuit component designs and suppressing one or more remaining layout circuit component designs.

Claims

1. A computer implemented method for dynamically abstracting virtual hierarchies for an electronic design, comprising:

executing, at a dynamic abstraction module coupled to a micro-processor of a computing system, a sequence of instructions to perform a process, the process comprising;

identifying at least a layout portion of a layout of an electronic design;

determining a virtual hierarchy in at least the layout portion according to a value that is received at a user interface for a display stop level;

selecting, based at least in part upon an input received at the user interface via an input device of the computing system, a plurality of layout circuit component designs according to the virtual hierarchy; and

in response to the input and the value for the display stop level identified at the user interface, generating an abstracted layout portion comprising the plurality of layout circuit components from at least the layout portion at least by displaying a representation corresponding to the plurality of layout circuit component designs and further by suppressing one or more remaining layout circuit component designs located at or below a hierarchical level corresponding to the display stop level from displaying in the user interface.

2. The computer implemented method of claim 1, the process further comprising:

updating a schematic design portion corresponding to at least the layout portion according to the display stop level value.

3. The computer implemented method of claim 2, the process further comprising:

determining a schematic hierarchy in a schematic design based in part or in whole upon the display stop level value or upon the virtual hierarchy by using binding information between the schematic design and the layout of the electronic design; and

identifying a plurality of schematic circuit component designs that are located at or above the schematic hierarchy.

4. The computer implemented method of claim 3, the process further comprising:

abstracting the schematic design at least by displaying the plurality of schematic circuit component designs and by suppressing one or more schematic circuit component designs at one or more schematic hierarchies below the schematic hierarchy.

5. The computer implemented method of claim 1, the process further comprising:

identifying a plurality of figure groups at one or more virtual hierarchies in at least the layout portion; and

identifying a schematic design portion corresponding to at least the layout portion based in part or in whole upon binding information between at least the layout portion and the schematic design portion.

6. The computer implemented method of claim 5, wherein the binding information includes mapping information between the one or more virtual hierarchies in at least the layout portion and one or more respective schematic hierarchies in the schematic design portion.

7. The computer implemented method of claim 5, the process further comprising:

determining whether the display stop level value corresponds to a top virtual hierarchy that is located below no other virtual hierarchies in at least the layout portion; and

abstracting at least the layout portion at least by suppressing layout circuit component designs within the one or more figure groups and by representing the one or more figure groups in one or more corresponding abstractions in at least the layout portion when the display stop level value is determined to correspond to the top virtual hierarchy.

8. The computer implemented method of claim 7, wherein an abstraction includes a rectilinear geometric shape that includes no layout circuit component designs within a boundary of the rectilinear geometric shape.

9. The computer implemented method of claim 7, the process further comprising:

identifying one or more higher virtual hierarchies that are located above the virtual hierarchy in a virtual hierarchical structure when the display stop level value is determined not to correspond to a top virtual hierarchy.

10. The computer implemented method of claim 9, the process further comprising:

identifying one or more additional layout circuit component designs located at the one or more higher virtual hierarchies in the plurality of figure groups; and

abstracting at least the layout portion into an abstracted layout portion at least by displaying the one or more additional layout circuit component designs located at the one or more higher virtual hierarchies in at least the layout portion.

11. The computer implemented method of claim 10, the process further comprising:

identifying one or more other layout circuit component designs that are not located at the one or more higher virtual hierarchies or the virtual hierarchy in the plurality of figure groups; and

updating at least the layout portion into the abstracted layout portion by abstracting the one or more other layout circuit component designs.

12. The computer implemented method of claim 1, the process further comprising:

storing an abstracted layout view for the abstracted layout portion or an abstracted schematic view of a corresponding schematic design in a cache, a non-transitory, non-persistent computer readable storage medium, or a transitory, non-persistent computer readable storage medium; and

reusing the abstracted layout view or the abstracted schematic view by retrieving the abstracted layout view or the abstracted schematic view from the cache, the non-transitory, non-persistent computer readable storage medium, or the transitory, non-persistent computer readable storage medium without recomposing the abstracted layout view or the abstracted schematic view.

13. A system for dynamically abstracting virtual hierarchies for an electronic design, comprising:

non-transitory computer accessible storage medium storing thereupon program code;

an dynamic abstraction module that is stored at least partially in memory of one or more computing systems, include or function in conjunction with at least one micro-processor of the one or more computing systems, and are configured to execute the program code to identify at least a portion of a layout of an electronic design;

the dynamic abstraction module further configured to execute the program code to determine a virtual hierarchy in the at least the portion according to a value that is received at a user interface for a display stop level;

the dynamic abstraction module further executing the program code to select, based at least in part upon an input received at the user interface via an input device of the computing system, a plurality of layout circuit component designs according to the virtual hierarchy; and

in response to the input and the value for the display stop level identified at the user interface, generating an abstracted layout portion comprising the plurality of layout circuit components from at least the layout portion, the dynamic abstraction module further executing the program code to display a representation corresponding to the plurality of layout circuit component designs and further by suppressing one or more remaining layout circuit component designs located at or below a hierarchical level corresponding to the display stop level from displaying in the user interface.

14. The system for claim 13, the dynamic abstraction module further executing the program code to:

update a schematic design portion corresponding to at least the layout portion according to the display stop level value; and

determine a schematic hierarchy in a schematic design based in part or in whole upon the display stop level value or upon the virtual hierarchy by using binding information between the schematic design and the layout of the electronic design.

15. The system for claim 14, the dynamic abstraction module further executing the program code to:

identify a plurality of schematic circuit component designs that are located at or above the schematic hierarchy; and

abstract the schematic design at least by displaying the plurality of schematic circuit component designs and by suppressing one or more schematic circuit component designs at one or more schematic hierarchies below the schematic hierarchy.

16. The system for claim 13, the dynamic abstraction module further executing the program code to:

identify a plurality of figure groups at one or more virtual hierarchies in at least the layout portion;

identify a schematic design portion corresponding to at least the layout portion based in part or in whole upon binding information between at least the layout portion and the schematic design portion, wherein the binding information includes mapping information between the one or more virtual hierarchies in at least the layout portion and one or more respective schematic hierarchies in the schematic design portion;

determine whether the display stop level value corresponds to a top virtual hierarchy that is located below no other virtual hierarchies in at least the layout portion; and

abstract at least the layout portion at least by suppressing layout circuit component designs within the one or more figure groups and by representing the one or more figure groups in one or more corresponding abstractions in at least the layout portion when the display stop level value is determined to correspond to the top virtual hierarchy.

17. An article of manufacture comprising a non-transitory computer accessible storage medium having stored thereupon a sequence of instructions which, when executed by at least one processor or at least one processor core executing one or more threads, causes the at least one processor or the at least one processor core to perform a set of acts for dynamically abstracting virtual hierarchies for an electronic design, the set of acts comprising:

executing, at a dynamic abstraction module coupled to a micro-processor of a computing system, a sequence of instructions to perform a process, the process comprising;

identifying at least a portion of a layout of an electronic design;

determining a virtual hierarchy in the at least the portion according to a value that is received at a user interface for a display stop level;

selecting, based at least in part upon an input received at the user interface via an input device of the computing system, a plurality of layout circuit component designs according to the virtual hierarchy; and

in response to the input and the value for the display stop level identified at the user interface, generating an abstracted layout portion comprising the plurality of layout circuit components from at least the layout portion at least by displaying a representation corresponding to the plurality of layout circuit component designs and further by suppressing one or more remaining layout circuit component designs located at or below a hierarchical level corresponding to the display stop level from displaying in the user interface.

18. The article of manufacture of claim 17, the set of acts further comprising:

identifying a plurality of figure groups at one or more virtual hierarchies in at least the layout portion;

identifying a schematic design portion corresponding to at least the layout portion based in part or in whole upon binding information between at least the layout portion and the schematic design portion;

determining whether the display stop level value corresponds to a top virtual hierarchy that is located below no other virtual hierarchies in at least the layout portion; and

abstracting at least the layout portion at least by suppressing layout circuit component designs within the one or more figure groups and by representing the one or more figure groups in one or more corresponding abstractions in at least the layout portion when the display stop level value is determined to correspond to the top virtual hierarchy.

19. The article of manufacture of claim 18, the set of acts further comprising:

identifying one or more higher virtual hierarchies that are located above the virtual hierarchy in a virtual hierarchical structure when the display stop level value is determined not to correspond to a top virtual hierarchy;

identifying one or more additional layout circuit component designs located at the one or more higher virtual hierarchies in the plurality of figure groups; and

abstracting at least the layout portion into an abstracted layout portion at least by displaying the one or more additional layout circuit component designs located at the one or more higher virtual hierarchies in at least the layout portion.

20. The article of manufacture of claim 19, the set of acts further comprising:

identifying one or more other layout circuit component designs that are not located at the one or more higher virtual hierarchies or the virtual hierarchy in the plurality of figure groups;

updating at least the layout portion into an abstracted layout portion by abstracting the one or more other layout circuit component designs;

storing an abstracted layout view for the abstracted layout portion or an abstracted schematic view of a corresponding schematic design in a cache, a non-transitory, non-persistent computer readable storage medium, or a transitory, non-persistent computer readable storage medium; and

reusing the abstracted layout view or the abstracted schematic view by retrieving the abstracted layout view or the abstracted schematic view from the cache, the non-transitory, non-persistent computer readable storage medium, or the transitory, non-persistent computer readable storage medium without recomposing the abstracted layout view or the abstracted schematic view.