Inter-processor communication method for transmitting data and processor dependent information predetermined for a receiving process of another processor
US5386566A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 18, 1992 |
| Grant date | Jan 31, 1995 |
| Priority date | — |
| Expiry date | Mar 18, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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 transmis…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.