Node coordination using a channel object and point-to-point prot

Details Node coordination using a channel object and point-to-point prot Node coordination using a channel object and point-to-point prot

1997-08-28

1999-12-28

Teska, Kevin J.

39550048, 39520032, 395683, 39580023, 39580028, 395684, G06F 928, G06F 9445

Patent

active

060092645

ABSTRACT:
A method, apparatus, and article of manufacture for coordinating a plurality of sub-tasks performed by a group of nodes of a parallel processor computer system. An application subdivides a function into the plurality of sub-tasks and assigns the sub-tasks to a group of participating nodes. A message is transmitted by the application to the group of participating nodes, wherein the message spawns one or more threads on each participating node and the threads are encapsulated by a virtual processor to perform a desired one or more of the sub-tasks. A channel object is created in all participating nodes and a coordinator node in response to the transmitted message, wherein the channel object in the coordinator node includes a data element identifying the group of participating nodes performing the sub-tasks. Each of the virtual processors in the participating nodes are monitored for completion of their assigned sub-tasks and a message is transmitted from the participating node to the coordinator node when all of the virtual processors in the participating node have completed their assigned sub-tasks. The coordinator node modifies the data element in the channel object in response to the transmitted message and indicates completion of the sub-tasks to the application when the data element in the channel object is modified to a specific value.

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