Abstract: Disclosed herein are an apparatus and method for a multi-cloud service platform. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program may receive a service request from a user client device, generate a multi-cloud infrastructure service using multiple clouds in response to the service request, make the multiple clouds interoperate with mufti-cloud infrastructure in order to provide the multi-cloud infrastructure service, and generate a multi-cloud application runtime environment corresponding to the multi-cloud infrastructure service.

Abstract: Disclosed herein are an apparatus and method for managing a multi-cloud computing infrastructure. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program receives a request for autonomous operation of a multi-cloud computing infrastructure from a user, generates an information object having a name of a namespace corresponding to the multi-cloud computing infrastructure and previously generated universal unique identifier (UID) information, manages multiple resources included in the multi-cloud computing infrastructure, provisions the multi-cloud computing infrastructure by generating computing instances constituting the components of the multi-cloud computing infrastructure, manages the lifecycles of the computing instances, and performs the autonomous operation of the multi-cloud computing infrastructure depending on operation conditions for the multi-cloud computing infrastructure.

Abstract: Disclosed herein are a cloud computing-based simulation apparatus and a method for operating the simulation apparatus. The method for operating a cloud computing-based simulation apparatus includes profiling a simulation in consideration of a simulation model and setup items that are requested by a user, when there is a history corresponding to results of the profiled simulation, calculating a resource configuration probability distribution for the simulation using the history, replicating the simulation environment to multiple simulation environments by selecting resource configurations in N simulation environments depending on the resource configuration probability distribution, where N is an integer of 2 or more, and simultaneously executing simulations in the multiple simulation environments.

Abstract: Disclosed herein are an apparatus and a method for providing a virtual multi-cloud service. The apparatus for providing a virtual multi-cloud service includes one or more processors and execution memory for storing at least one program that is executed by the one or more processors, wherein the at least one program is configured to create a virtual machine cluster requested by an operator using an external cloud computing infrastructure, install a container orchestration tool in the virtual machine cluster using container-related information registered by the operator in advance, and create a virtual cloud requested by the operator using the container orchestration tool.

Abstract: Disclosed herein are a container orchestration apparatus in an environment of multiple geographically distributed clouds and a method using the same. The container orchestration method includes receiving, by the container orchestration apparatus, a service request from a device using service; and dynamically deploying, by the container orchestration apparatus, a service node and a service instance for processing the service request based on auto-scheduling of a container orchestration cluster based on the environment of multiple geographically distributed clouds.

Abstract: Disclosed herein are an apparatus and method for providing interoperability of a multi-cloud service. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program receives a service request for the multi-cloud service from a user client, creates a multi-cloud service in response to the service request, configures functions for interoperability between multiple cloud services in the multi-cloud service, and provides the multi-cloud service in which the functions for interoperability are configured to the user client.

Abstract: Disclosed herein are an apparatus and method for a multi-cloud service platform. The apparatus includes one or more processors and executable memory for storing at least one program executed by the one or more processors. The at least one program may receive a service request from a user client device, generate a multi-cloud infrastructure service using multiple clouds in response to the service request, make the multiple clouds interoperate with mufti-cloud infrastructure in order to provide the multi-cloud infrastructure service, and generate a multi-cloud application runtime environment corresponding to the multi-cloud infrastructure service.

Abstract: Disclosed herein are a cloud computing-based simulation apparatus and a method for operating the simulation apparatus. The method for operating a cloud computing-based simulation apparatus includes profiling a simulation in consideration of a simulation model and setup items that are requested by a user, when there is a history corresponding to results of the profiled simulation, calculating a resource configuration probability distribution for the simulation using the history, replicating the simulation environment to multiple simulation environments by selecting resource configurations in N simulation environments depending on the resource configuration probability distribution, where N is an integer of 2 or more, and simultaneously executing simulations in the multiple simulation environments.

Abstract: In a method for communication between hosts using a peripheral component interconnect express (PCIe) dedicated communication module, a PCIe dedicated communication module of a first host generates a first connection buffer for receiving a connection command from a second host, stands by a connection request from the second host, determines whether the first host is connectable to the second host in response to the connection request received from the second host, and, if it is determined that the first host is connectable to the second host, generates a first connection socket connected to the second host for the purpose of data communication. The PCIe dedicated communication module generates a first communication buffer to store data received from the second host, assigns the first communication buffer to the first connection socket, permits the connection between the first and second hosts, and stands by data communication with the second host.

Abstract: Provided are a high-performance distributed storage apparatus and method. The high-performance distributed storage method includes receiving and storing file data by a chunk unit, outputting file data chunks stored in an input buffer and transmitting the file data chunks to data servers in parallel, additionally generating a new file storage requester to connect the new file storage requester to a new data server based on a data input speed of the input buffer and a data output speed at which data is output to the data server, re-setting a file data chunk output sequence for a plurality of file storage requesters including the new file storage requester, and applying a result of the re-setting to output and transmit the file data chunks stored in the input buffer to the data servers in parallel.

Abstract: Apparatus, method and systems for managing reference data, which can prevent duplicated data loading of reference data and eliminate redundancy of I/O operations for loading of the same reference data required by different virtual machines present in the same physical node to reduce use memory and I/O through sharing virtual machine leveled memories, are provided.

Abstract: In a method for communication between hosts using a peripheral component interconnect express (PCIe) dedicated communication module, a PCIe dedicated communication module of a first host generates a first connection buffer for receiving a connection command from a second host, stands by a connection request from the second host, determines whether the first host is connectable to the second host in response to the connection request received from the second host, and, if it is determined that the first host is connectable to the second host, generates a first connection socket connected to the second host for the purpose of data communication. The PCIe dedicated communication module generates a first communication buffer to store data received from the second host, assigns the first communication buffer to the first connection socket, permits the connection between the first and second hosts, and stands by data communication with the second host.

Abstract: Provided herein is a system for providing a virtual block device, which includes a logical block device configured to transmit and receive data to and from an external computer and to have logical block IDs, and a physical block device configured to include a cache area and a storage area for storing at least a part of the data and to have physical block IDs, wherein the cache area comprises a first memory cluster having first memory IDs, the storage area comprises a second memory cluster having second memory IDs and a third memory cluster having third memory IDs, and the physical block IDs include the first to third memory IDs. The system can simultaneously cope with both an application requiring a large capacity and an application requiring a short access time, using a single virtual block device provision system in which various storage devices are included.

Abstract: Provided is an apparatus for allocating resources of a distributed data processing system by considering a virtualization platform, the apparatus including: a resource usage monitor configured to scan one or more available virtual machines that execute one or more selected tasks in one or more physical machines, and to calculate a distance between the one or more scanned available virtual machines based on physical machine information received from the one or more physical machines; and a task allocator configured to allocate the one or more selected tasks to one or more virtual machines selected from among the one or more scanned available virtual machines based on the calculated distance between the one or more scanned available virtual machines.

Abstract: Apparatus, method and systems for managing reference data, which can prevent duplicated data loading of reference data and eliminate redundancy of I/O operations for loading of the same reference data required by different virtual machines present in the same physical node to reduce use memory and I/O through sharing virtual machine leveled memories, are provided.

Abstract: An apparatus for controlling memory according to an embodiment of the present invention comprises: a secondary storage device configured to store page-level data; a memory configured to store page information; and a processor configured to perform swap-out to modify the page information and load access target data in an unassigned area of the memory when a page fault for the access target data of the data is caused and capacity of the memory to load the access target data is insufficient.

Abstract: Disclosed herein are a resource manager node and a resource management method. The resource manager node includes a resource management unit, a resource policy management unit, a shared resource capability management unit, a shared resource status monitoring unit, and a shared resource allocation unit. The resource management unit performs an operation necessary for resource allocation when a resource allocation request is received. The resource policy management unit determines a resource allocation policy based on the characteristic of the task, and generates resource allocation information. The shared resource capability management unit manages the topology of nodes, information about the capabilities of resources, and resource association information. The shared resource status monitoring unit monitors and manages information about the status of each node and the use of allocated resources. The shared resource allocation unit sends a resource allocation request to at least one of the plurality of nodes.

Abstract: Disclosed herein are a resource manager node and a resource management method. The resource manager node includes a resource management unit, a resource policy management unit, a shared resource capability management unit, a shared resource status monitoring unit, and a shared resource allocation unit. The resource management unit performs an operation necessary for resource allocation when a resource allocation request is received. The resource policy management unit determines a resource allocation policy based on the characteristic of the task, and generates resource allocation information. The shared resource capability management unit manages the topology of nodes, information about the capabilities of resources, and resource association information. The shared resource status monitoring unit monitors and manages information about the status of each node and the use of allocated resources. The shared resource allocation unit sends a resource allocation request to at least one of the plurality of nodes.

Abstract: Provided is a hyperlink display method based on a visit history accumulation, which is capable of providing search convenience between web documents by providing a self-updating hyperlink through accumulation of a visit history. The hyperlink display method includes displaying a plurality of hyperlink included in a web document when the web document is selected, recording a weight value of a selected hyperlink when any one of the plurality of hyperlinks is selected, and displaying the weight value of the selected hyperlink on the web document.

Abstract: Provided is a method of pairing terminals with each other, and a terminal for the method. The method includes sensing a physical motion of a terminal caused by a user and outputting a sensing value, comparing a reception value received from an external terminal with the sensing value, and establishing a communication path with the external terminal according to the comparison result.