The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 23, 2012
Filed:
Feb. 06, 2008
Koichi Takayama, Saitama, JP;
Naonobu Sukegawa, Inagi, JP;
Koichi Takayama, Saitama, JP;
Naonobu Sukegawa, Inagi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A method of generating optimum parallel codes from a source code for a computer system configured of plural processors that share a cache memory or a main memory is provided. A preset code is read and operation amounts and process contents are analyzed while distinguishing dependence and independence among processes from the code. Then, the amount of data to be reused among processes is analyzed, and the amount of data that accesses the main memory is analyzed. Further, upon the reception of a parallel code generation policy inputted by a user, the processes of the code are divided, and while estimating an execution cycle from the operation amount and process contents thereof, the cache use of the reuse data, and the main memory access data amount, a parallelization method with which the execution cycle becomes shortest is executed.