Computer executing method, clock data processing system and computer readable storage medium

A clock data processing system, configured for calculating a branch position of a clock tree, the clock tree comprises a plurality of clock pins, a plurality of weight values are set between any of the clock pins, the clock data processing system comprising:

• a data storage unit, configured for storing the clock pins and the weight values;
• and
• a processor, electrically coupled to the data storage unit, and configured for establishing a graph model and utilizing a force directed algorithm to calculate a branch position according to the weight values and a position of the clock pins;
• the processor is configured for setting a guide buffer in the branch position and updating a netlist, and performing a clock tree synthesis (CTS) and executing a post-CTS static timing analysis (STA);
• the processor is configured for determining whether an analysis result of the post-CTS STA meets a setup time constraint or not, if not, re-calculating the weight values, and re-establishing a graph model according to the weight values;
• wherein the graph model comprises a plurality of nodes and a plurality of edges, the nodes are corresponded to the clock pins and the edges are corresponded to the weight values.

A computer readable storage medium storing a computer program, the computer program is configured for loading in a computer system, and calculating a branch position of a clock tree, the clock tree comprises a plurality of clock pins, a plurality of weight values are set between any of the clock pins, the computer program is configured for performing a computer executing method, wherein the computer executing method comprises:

• establishing a graph model, wherein the graph model comprises a plurality of nodes and a plurality of edges, the nodes are corresponded to the clock pins and the edges are corresponded to the weight values;
• utilizing a force directed algorithm to calculate a branch position according to the weight values and a position of the clock pins;
• setting a guide buffer in the branch position and updating a netlist;
• performing a clock tree synthesis (CTS) and executing a post-CTS static timing analysis (STA);
• determining whether an analysis result of the post-CTS STA meets a setup time constraint or not;
• and
• if the analysis result does not meet the setup time constraint, re-calculating the weight values, and re-establishing a graph model according to the weight values.