Method of quickly reading and writing mass data file

Abstract

The invention discloses a method of quickly reading and writing a physics territory data, comprising the steps of classifying the data type of the physics territory data, applying storage page for data of different data types, storing the data of same type in the same storage page of a memory, and writing in all the data in the storage page to a hard disk one-time by utilizing the quick writing-in process from the storage page to the hard disk. By the method of quickly reading and writing a physics territory data of the invention, the concrete data type, concrete data unit and reconstruction of the concrete data unit require no concern, the reconstructions one by one of all data are avoided, the reading and writing speeds are improved, and the quick reading and writing of the mass integrated circuit physical layout data between the computer memorizer and the hard disk is realized.

Description

technical field [0001] The invention relates to the field of electronic design automation (EDA), in particular to a method for quickly reading and writing massive data files. Background technique [0002] The physical layout data file is the file with the largest amount of data in the system integrated circuit chip (SOC) design. The size of the physical layout data file of the existing SOC circuit is on the order of several GB to dozens of GB. With the continuous development of technology and continuous improvement of design technology, the physical layout data scale of SOC circuits will reach the order of hundreds of GB. [0003] In the SOC design process, the reading and writing of physical layout data is relatively frequent: physical synthesis needs to write physical layout data; physical layout optimization needs to read and write physical layout data; geometric design rule checking needs to read physical layout data; Parameter extraction needs to read physical layout d...

AI Technical Summary

Problems solved by technology

It takes dozens of minutes or even hours to read and write data of the size of physical layout data files in the traditional data input and output mode. However, in the design process, especially at the back end of the design process, it is necessary to read such data frequently. Large-scale data, which makes the input and output of massive physical layout data an important bottleneck in the process of integrated circuit design

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