Multi-node computer system in which networks in different nodes implement different conveyance modes
First Claim
Patent Images
1. A system, comprising:
- a plurality of nodes, wherein each node of the plurality of nodes includes a plurality of active devices, one or more memory subsystems, and an address network that is configured to couple the plurality of active devices and the one or more memory subsystems together; and
an inter-node network coupled to the address network and configured to convey communications between the plurality of nodes;
wherein each address network is independently configured to convey address packets specifying a coherency unit using a broadcast mode and a point-to-point mode; and
wherein each address network is further configured to independently select one of the broadcast mode and the point-to-point mode dependent upon whether the coherency unit maps to any of the one or more memory subsystems included in the node.
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Abstract
A system may include several nodes coupled by in inter-node network. Each node includes several active devices coupled by an address network. The address network included in one of the nodes may be configured to convey address packets specifying a particular coherency unit in broadcast mode. The address network included in a different one of the nodes may be configured to convey address packets specifying that coherency unit in point-to-point mode.
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Citations
26 Claims
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1. A system, comprising:
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a plurality of nodes, wherein each node of the plurality of nodes includes a plurality of active devices, one or more memory subsystems, and an address network that is configured to couple the plurality of active devices and the one or more memory subsystems together; and an inter-node network coupled to the address network and configured to convey communications between the plurality of nodes; wherein each address network is independently configured to convey address packets specifying a coherency unit using a broadcast mode and a point-to-point mode; and wherein each address network is further configured to independently select one of the broadcast mode and the point-to-point mode dependent upon whether the coherency unit maps to any of the one or more memory subsystems included in the node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of operating a multi-node computer system, wherein the multi-node computer system includes a plurality of nodes coupled together by an inter-node network, wherein each node includes a plurality of active devices, one or more memory subsystems, and an address network coupling together the plurality of active devices and the one or more memory subsystems, the method comprising:
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each address network included in a node of the plurality of nodes independently conveying address packets specifying a coherency unit using a broadcast mode and a point-to-point mode; and each address network independently selecting one of the broadcast mode and the point-to-point mode dependent upon whether the coherency unit maps to any of the one or more memory subsystems included in the node. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification