Method and apparatus for assuring adequate access to system reso

Details Method and apparatus for assuring adequate access to system reso Method and apparatus for assuring adequate access to system reso

1987-05-01

1990-06-26

Zache, Raulfe B.

Boots, shoes, and leggings

364240, 3642409, 3642435, 3642283, G06F 918, G06F 1516

Patent

active

049377337

ABSTRACT:
A multiple node computer system includes processor nodes, memory nodes, and input/output nodes interconnected on a pended bus. The system includes a lockout indicator which is set upon receipt of a locked response message by a processor node from a memory node in response to an interlock read command. The processors include a lockout check circuit responsive to the condition of the lockout indicator and will restrict generation of additional interlock read commands according to a predetermined access gating criterion until the lockout indicator is reset. In this manner, processor nodes of the system are assured equitable access to a memory node.

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