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:
Aug. 27, 1991
Filed:
Aug. 17, 1989
Akira Muramatsu, Kawasaki, JP;
Kousuke Sakoda, Hino, JP;
Ikuo Yoshihara, Tama, JP;
Kazuo Nakao, Sagamihara, JP;
Makoto Nohmi, Kawasaki, JP;
Naoki Hamanaka, Tokyo, JP;
Shigeo Nagashima, Hachioji, JP;
Teruo Tanaka, Hachioji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A plurality of elemental processors each include a local memory for storing data and task programs and an execution section for executing the task programs. A communications section transfers data among the processors. In a method of parallel processing with these elemental processors, a task program is executed in one of the processors. A detection operation is conducted to determine whether the data from the task program is to be copied to the local memories of other processors. The detection is based on predetermined information which is stored in the local memory of the processor which performs the task program and indicates which of the other processors will need the data. The detection also determines which of the other processors that will require access to the data are ready to receive the data. Concurrently and in parallel with the execution of the task program, the data is transmitted to each of the elemental processors that are awaiting the data with only a write instruction and without any communications instruction.