Inter-processor communication method for transmitting data and processor dependent information predetermined for a receiving process of another processor
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United States of America Patent
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Jan 31, 1995
Grant Date -
N/A
app pub date -
Mar 18, 1992
filing date -
Mar 20, 1991
priority date (Note) -
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Abstract
In a parallel computer, in order to reduce the overhead of data transmissions between the processes, a data transmission from the virtual space of a process in a certain cluster to the virtual space of a process in other cluster is executed without copying the data to the buffer provided within the operating system. The real communication area resident in the real memory is provided in a part of the virtual space of the process, and an identifier unique within the cluster is given to the communication area. When the transmission process has issued a transmission instruction at the time of data transmission, the cluster address of the cluster in which the transmission destination process exists and the identifier of the communication area are determined based on the name of the transmission destination process. Then, the data is directly transmitted between the mutual real communication areas of the transmission originating process and the transmission destination process. Overhead for the data transmission between the processes can be reduced by avoiding making a copy of the data between the user space and the buffer provided within the operating system at the time of data transmission between the processes.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- HITACHI, LTD.;HITACHI VLSI ENGINEERING CORP.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Chiba, Hiroyuki | Hachioji, JP | 85 | 975 |
Hamanaka, Naoki | Tokyo, JP | 46 | 1602 |
Higuchi, Tatsuo | Fuchu, JP | 33 | 1301 |
Nakagoshi, Junji | Tokyo, JP | 15 | 483 |
Ogata, Yasuhiro | Akishima, JP | 47 | 710 |
Shutoh, Shin'ichi | Kokubunji, JP | 2 | 99 |
Takeuchi, Shigeo | Hanno, JP | 50 | 908 |
Toba, Taturu | Kunitachi, JP | 6 | 184 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
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