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    NETWORK SOURCE ARBITRATION
    11.
    发明申请
    NETWORK SOURCE ARBITRATION 审中-公开

    公开(公告)号：US20190334830A1

    公开(公告)日：2019-10-31

    申请号：US15963296

    申请日：2018-04-26

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Frank R. Dropps ,  Joseph G. Tietz

    IPC: H04L12/911 ,  H04L12/937

    Abstract: Example implementations relate to arbitrating access to a shared resource for a plurality of data streams. An example implementation includes selecting a data stream from the plurality of data streams according to an arbitration scheme. A data packet of the selected data stream may be granted access to the shared resource. A source count associated with a source of the data packet may be adjusted, and the arbitration scheme may be blocked from selecting the data stream where the source count exceeds a threshold.

    Virtual channel and resource assignment
    12.
    发明授权
    Virtual channel and resource assignment 有权

    公开(公告)号：US10331581B2

    公开(公告)日：2019-06-25

    申请号：US15483880

    申请日：2017-04-10

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Frank R. Dropps ,  Michael E. Malewicki

    IPC: G06F12/08 ,  G06F13/16 ,  G06F13/40

    Abstract: A high-performance computing system, method, and storage medium manage accesses to multiple memory modules of a computing node, the modules having different access latencies. The node allocates its resources into pools according to pre-determined memory access criteria. When another computing node requests a memory access, the node determines whether the request satisfies any of the criteria. If so, the associated pool of resources is selected for servicing the request; if not, a default pool is selected. The node then services the request if the pool of resources is sufficient. Otherwise, various error handling processes are performed. Each memory access criterion may relate to a memory address range assigned to a memory module, a type of request, a relationship between the nodes, a configuration of the requesting node, or a combination of these.

    NONCOHERENT INTERPROCESSOR COMMUNICATION REMAPPING NODE CONTROLLER
    13.
    发明申请
    NONCOHERENT INTERPROCESSOR COMMUNICATION REMAPPING NODE CONTROLLER 审中-公开

    公开(公告)号：US20190121780A1

    公开(公告)日：2019-04-25

    申请号：US15792644

    申请日：2017-10-24

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Frank R. Dropps

    IPC: G06F15/173 ,  G06F12/0817

    Abstract: A first node controller may include logic to direct the first node controller to: receive a noncoherent inter-processor communication from a source processor, remap the noncoherent inter-processor communication to a local address space of a destination processor and transmit the noncoherent inter-processor communication directly to a second node controller of the destination processor using an interconnect interface that also carries coherent communications.

    Chassis servicing and migration in a scale-up NUMA system
    15.
    发明授权
    Chassis servicing and migration in a scale-up NUMA system 有权

    公开(公告)号：US12282662B2

    公开(公告)日：2025-04-22

    申请号：US17898189

    申请日：2022-08-29

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Thomas Edward McGee ,  Brian J. Johnson ,  Frank R. Dropps ,  Derek S. Schumacher ,  Stuart C. Haden ,  Michael S. Woodacre

    IPC: G06F3/06 ,  G06F12/0817

    Abstract: One aspect of the application can provide a system and method for replacing a failing node with a spare node in a non-uniform memory access (NUMA) system. During operation, in response to determining that a node-migration condition is met, the system can initialize a node controller of the spare node such that accesses to a memory local to the spare node are to be processed by the node controller, quiesce the failing node and the spare node to allow state information of processors on the failing node to be migrated to processors on the spare node, and subsequent to unquiescing the failing node and the spare node, migrate data from the failing node to the spare node while maintaining cache coherence in the NUMA system and while the NUMA system remains in operation, thereby facilitating continuous execution of processes previously executed on the failing node.

    MANAGEMENT OF COHERENCY DIRECTORY CACHE ENTRY EJECTION
    17.
    发明申请
    MANAGEMENT OF COHERENCY DIRECTORY CACHE ENTRY EJECTION 审中-公开

    公开(公告)号：US20200349077A1

    公开(公告)日：2020-11-05

    申请号：US16399378

    申请日：2019-04-30

    Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

    Inventor： Frank R. Dropps

    IPC: G06F12/0817 ,  G06F12/123

    Abstract: In exemplary aspects of managing the ejection of entries of a coherence directory cache, the directory cache includes directory cache entries that can store copies of respective directory entries from a coherency directory. Each of the directory cache entries is configured to include state and ownership information of respective memory blocks. Information is stored, which indicates if memory blocks are in an active state within a memory region of a memory. A request is received and includes a memory address of a first memory block. Based on the memory address in the request, a cache hit in the directory cache is detected. The request is determined to be a request to change the state of the first memory block to an invalid state. The ejection of a directory cache entry corresponding to the first memory block is managed based on ejection policy rules.

    OPTICAL INTERCONNECT TOPOLOGY
    18.
    发明申请
    OPTICAL INTERCONNECT TOPOLOGY 审中-公开

    公开(公告)号：US20200257066A1

    公开(公告)日：2020-08-13

    申请号：US16272785

    申请日：2019-02-11

    Applicant: Hewlett Packard Enterprise Development LP

    Inventor： Mir Ashkan Seyedi ,  Frank R. Dropps

    IPC: G02B6/42 ,  G02B6/43 ,  G02B6/293

    Abstract: Examples herein relate to optical interconnect topologies. In particular, implementations herein relate to optical interconnects that include a transmitter. The transmitter includes an optical source configured to emit light, a waveguide coupled to the optical source and configured to receive the emitted light from the optical source, a plurality of ring resonators coupled to the waveguide, each ring modulator corresponding to a different channel of the optical source, and wherein each ring resonator is configured to be tuned to a single wavelength of the emitted light different from the other ring resonators. The transmitter further includes a plurality of optical couplers, each optical coupler coupled to a drop port of a respective ring resonator, and wherein each optical coupler is configured to be coupled to an optical fiber and to couple the single wavelength of the emitted light from each respective ring resonator to the optical fiber.

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