A system and method are provided for facilitating efficient management of data structures stored in remote memory. During operation, the system receives a request to allocate memory for a first part in a data structure stored in a remote memory associated with a compute node in a network. The system pre-allocates a buffer in the remote memory for a plurality of parts in the data structure and stores a first local descriptor associated with the buffer in a local worker table stored in a volatile memory of the compute node. The first local descriptor facilitates servicing future access requests to the first and other parts in the data structure. The system stores a first global descriptor for the buffer in a shared global table stored in the remote memory and generates a first reference corresponding to the first part, thereby facilitating faster traversals of the data structure.

An example method of virtualizing a hardware accelerator in a host cluster of a virtualized computing system includes: commanding, at an initiator host in the host cluster, a programmable expansion bus device to reconfigure as a virtual accelerator based on specifications of a hardware accelerator in a target host of the host cluster; executing, in the programmable expansion bus device, software to emulate the virtual accelerator as connected to an expansion bus of the initiator host; receiving, at the programmable expansion bus device, compute tasks from an application executing in the initiator host; and sending, to the target host, the compute tasks for processing by the hardware accelerator.

A peripheral proxy subsystem is placed between multiple hosts, each having a root controller, and single root I/O virtualization (SR-IOV) peripheral devices that are to be shared. The peripheral proxy subsystem provides a root controller for coupling to the endpoint of the SR-IOV peripheral device or devices and multiple endpoints for coupling to the root controllers of the hosts. The peripheral proxy subsystem maps the virtual functions of an SR-IOV peripheral device to the multiple endpoints as desired to allow the virtual functions to be allocated to the hosts. The physical function of the SR-IOV peripheral device is managed by the peripheral proxy device to provide the desired number of virtual functions. The virtual functions of the SR-IOV peripheral device are then presented to the appropriate host as a physical function or a virtual function.

An electronic apparatus and a USB interface switching method. The electronic apparatus includes: a first control component corresponding to a first operating system, a second control component corresponding to a second operating system, a USB interface, and a USB interface switching circuit. The first control component is used to detect the data transmission state between the USB interface and the first control component. The second control component is used to detect the data transmission state between the USB interface and the second control component.

A network interface device has data path circuitry configured to cause data to be moved into and/or out of the network interface device. The data path circuitry comprises: first circuitry for providing one or more data processing operations; and interface circuitry supporting channels. The channels comprises command channels receiving command information from a plurality of data path circuitry user instances, event channels providing respective command completion information to the plurality of data path user instances; and data channels providing the associated data.

Apparatuses, systems, and techniques to multicast a transaction to a group of targets. In at least one embodiment, a set is selected from alternate sets of directives associated with the group of targets, and the transaction is transmitted to the group of targets in accordance with the selected set.

Methods, systems, and devices for providing computer implemented services using managed systems are disclosed. To provide the computer implemented services, the managed systems may need to operate in a predetermined manner conducive to, for example, execution of applications that provide the computer implemented services. Similarly, the managed system may need access to certain hardware resources (e.g., and also software resources such as drivers, firmware, etc.) to provide the desired computer implemented services. To improve the likelihood of the computer implemented services being provided, the managed devices may be managed using a subscription based model. The subscription model may utilize a highly accessible service to obtain information regarding desired capabilities (e.g., a subscription) of a managed system, and use the acquired information to automatically configure and manage the features and capabilities of the managed systems.

Embodiments of the present invention provide a connecting apparatus and a system. The connecting apparatus includes N interconnection units, M line processing units, and X switch processing units, where each interconnection unit is connected to at least one switch processing unit, each switch processing unit is connected to only one interconnection unit, each interconnection unit is connected to the M line processing units, each line processing unit is connected to the N interconnection units, M is a positive integer, N is a positive integer, and X is greater than or equal to N. In addition, the embodiments of the present invention further provide another connecting apparatus and system. According to the foregoing technical solutions, a connecting mode between an LPU and an SPU is relatively flexible.

A data loading device for loading data into computer processor units from a data source, the device comprising at least a first connector for connecting to the data source and provided with a PHY component, and a plurality of second connectors for connecting to the computer processor units and each provided with a respective PHY component, the first connector being connected to the second connectors by a first selector module in order to define a single down channel so as to transmit data from the first connector to each of the second connectors individually, and by a second selector module for defining a single up channel so as to transmit data in the opposite direction, the selector modules being arranged to be capable of connecting only one of the second connectors at a time to the first connector and the device including a control unit for controlling the selector modules to select which second connector to connect to the first connector.

Examples herein include a computer system and methods. Some computer systems comprise two or more devices (each device comprises at least one processing circuit), where each computing device comprises or is communicatively coupled to one or more optical network interface controller (O-NIC) cards. Each O-NIC card comprises at least two bidirectional optical channels to transmit data and to receive additional data from each O-NIC card communicatively coupled to a device, over a channel. The system also includes one or more interfaces and a memory. Program instructions execute a method on one or more processors in communication with a memory, and the method includes modifying, during runtime of at least one application, a pairing over a given bidirectional optical channel of an interface of the interfaces to a given device.