Invention Grant
- Patent Title: Highly threaded static timer
- Patent Title (中): 高线程静态定时器
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Application No.: US12147418Application Date: 2008-06-26
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Publication No.: US07958474B2Publication Date: 2011-06-07
- Inventor: George J Chen , Gilda Garreton , Steven M Rubin , Robert E Mains
- Applicant: George J Chen , Gilda Garreton , Steven M Rubin , Robert E Mains
- Applicant Address: US CA Redwood City
- Assignee: Oracle America, Inc.
- Current Assignee: Oracle America, Inc.
- Current Assignee Address: US CA Redwood City
- Agency: Martine Penilla & Gencarella, LLP
- Main IPC: G06F17/50
- IPC: G06F17/50 ; G06F9/455

Abstract:
Various methods and apparatus for executing a multithreaded algorithm that performs a static timing analysis of an integrated circuit chip (chip) include logic for traversing the chip to identify a plurality of components (cells or nodes) within a chip circuit of the chip. A waveform graph is defined for the identified nodes. One or more virtual graphs are generated from the waveform graph. The plurality of nodes in the one or more virtual graphs are processed using multiple threads to obtain quadruplet of time domain dataset values representing the different modes of propagation for each node. A timing check is performed at an end node of the virtual graphs using the quadruplet of time domain dataset values to determine any timing violation within the chip design.
Public/Granted literature
- US20090327985A1 HIGHLY THREADED STATIC TIMER Public/Granted day:2009-12-31
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