Interstream control and communications for multi-streaming...

G - Physics – 06 – F

Patent

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Details

G06F 15/76 (2006.01) G06F 9/00 (2006.01) G06F 9/38 (2006.01) G06F 15/00 (2006.01) G06F 17/00 (2006.01)

Patent

CA 2367039

A multi-streaming processor has a plurality of streams (103) for streaming one or more instruction threads, a set of functional resources (107) for processing instructions from streams; and interstream control mechanisms (115) whereby any stream may effect the operation of any other stream. In various embodiments the interstream control mechanisms include mechanisms for accomplishing one or more of enabling or disabling another stream, putting stream into a sleep mode or awakening another stream from a sleep mode, setting priorities for another stream relative to access to functional resources, and granting blocking access by another stream to functional resources. A Master Mode is taught, wherein one stream is granted master status, thereby may exert any and all available control mechanisms relative to other streams without interference by any stream. Supervisory modes are taught as well, wherein control may be granted from minimal to full control, with compliance of controlled streams, which may alter or withdraw control privileges.

L'invention porte sur un processeur possédant une pluralité de flux (103) en vue de faire défiler un ou plusieurs chemins d'exécution, un ensemble de ressources fonctionnelles (107) en vue de traiter les instructions provenant des flux ; et des mécanismes (115) de commande interflux au moyen desquels tout flux peut effectuer l'opération de n'importe quel autre flux. Selon différentes réalisations, les mécanismes de commande interflux comprennent des mécanismes permettant d'effectuer une ou plusieurs validations ou invalidations d'un autre flux, mettre le flux en mode veille ou réveiller un autre flux, mettre des priorités pour un autre flux par rapport à l'accès aux ressources fonctionnelles et permettre le blocage d'accès aux ressources fonctionnelles par un autre flux. L'invention porte également sur un mode Maître dans lequel on attribue à un flux un statut maître, ce qui permet de mettre en oeuvre des mécanismes quelconques et tous les mécanismes de surveillance disponibles par rapport aux autres flux sans qu'il y ait interférence avec un flux quelconque. L'invention porte également sur des modes Surveillance permettant de gérer des degrés de surveillance, lequel mode implique la modification ou le retrait des privilèges de surveillance.

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