Multiprocessors including means for communicating with each othe

Details Multiprocessors including means for communicating with each othe Multiprocessors including means for communicating with each othe

1990-05-22

1993-05-25

Richardson, Robert L.

395425, G06F 1300

Patent

active

052147592

ABSTRACT:
In a memory device shared among processors, a communication buffer having a size requested by the processing program of the origin of sending is dynamically secured. After the communication buffer has been secured, the send program writes a message to be conveyed to the receive program into the above described communication buffer and asks the send OS to perform sending. The send OS sends a communication ID having "1" set in the bit position corresponding to the receive program. On the basis of the above described bit position, the receive OS specifies a receive program and informs the receive program of that fact. The receive program reads a message from the communication buffer. Communication between the send program and the receive program is thus realized. A send instruction and a receive instruction respectively for exclusive use of sending and reading out a communication ID are prepared beforehand.

REFERENCES:
patent: 4325116 (1982-04-01), Kranz et al.

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