摘要:
A slider includes a void for controlling the flying height of the slider over a disk in a HDD. The slider comprises a slider body having a leading surface and a trailing surface. A read/write element is formed in a portion of the slider body proximate to the trailing surface of the slider body and a first thermal heater proximate the read/write element, wherein a first void is defined within the slider body proximate to the read/write element for increasing a mobility of the read/write element to increase the protrusion when thermal energy is introduced to the read/write element.
摘要:
A query processing system in which a virtual table to enable multiple mapping to a plurality of databases is provided in a data processing system to receive a query from an application program and partial replicas as copies of part of the data in the virtual table is prepared in storage so that the whole or part of a query can be processed using the partial replicas. For query units which cannot be processed using the partial replica, means to select an appropriate distributed join method and optimization to push down query processing to real databases as far as possible are used. The system allows transparent access to multiple different real databases according to access conditions without changing the column to be accessed in the virtual table or switching the virtual table, thereby eliminating the need to create a new application for each newly developed service.
摘要:
In order to enable monitoring of a computer of a monitoring target, by two or more computers by way of a network, without increasing the load of the computer of monitoring target, the capturing process invoked on each node of the parallel computer captures performance data, the collecting process invoked on a specific node collects these captured performance data, and transmits to the relaying process on the monitoring computer. If there is a display process and a logging process invoked on the same or different monitoring computers, the relaying process distributes the performance data to them. The display process displays the performance data for part of measurement items included in the distributed performance data on the display device. The logging process stores all the distributed performance data in the storage device.
摘要:
A method for rapidly executing a series of remote procedure calls between a client and a server, comprising an RPC optimizer (101) that inputs an IDL source code (103) and client source codes (102, 102′, . . . ) so as to define as a new remote procedure a group of remote procedures to be performed by the client in an additional server source code (107). In turn, the RPC optimizer outputs a new IDL source code (106) to which an interface of the remote procedure is added, and new client source codes (105, 105′, . . . ) modified so as to use the remote procedure. This reduces communications involving a plurality of remote procedures to a single communication pass, thereby implementing high-speed communication between the client and the server.
摘要:
Method and apparatus for query processing including an optimization controller, responding to a query from an application related to an database, and controlling optimization processing of the query. A query classification definition and a query operation direction associated with the query classification definition are defined on a storing means. The query classification definition classifies the queries according to classifications and attributes including environment for use, time for use, database to be accessed, and the amount of data that is processed. The query operation direction defines strength of the direction including “Force”, “Recommended”, “Neutral”, and “Deny”, which is used to select operation at the time of query execution from several alternatives. During optimization processing of the received query, the system controls the optimization processing according to the query control information that has been set, enabling control of DBMS operation in a batch for two or more queries without modifying the applications.
摘要:
A program generating method for generating a FORTRAN program by use of a computer having the following steps of automatically selecting an optimal weight function for each equation of the system of partial differential equations including coupled plural variables and partial differential equations to effect a multiplication therebetween, performing a partial integration thereon, automatically selecting from a group of boundary conditions an optimal boundary condition for each partial differential equation to conduct a collation processing of the boundary condition, exchanging the order of the summation and the integration on the object variable to effect a discretize processing of the variable, assigning components to a coefficient matrix and a constant vector, and generating a FORTRAN program to solve the equations through a linear computation.
摘要:
In a process control system according to the present invention, a history record table, a history record relationship table, a process table, and a process relationship table are provided. The history record table stores information on a history record. The history record relationship table stores information on a history record relationship. The process table stores information on a process. The process relationship table stores information on a process relationship. When a history record is received, history records of the previous process and the next process are searched. Then, both of the history record relationship between a history record of the present process and a history record of the previous process and the history record relationship between the history record of the present process and a history record of the next process are created. Then, using the process table, the process relationship table, and history record information that has been already collected, history records that have not been received are estimated and then are displayed according to work order.With such arrangement, it is possible to trace a product item correctly even when some of history records are not registered since time required to register a history is varied depending on the processes or for other reasons, or there are not some of necessary history records.
摘要:
There is provided a transaction processing system for providing plural services according to service level contracts, the system comprising: an SLA database for storing contract conditions defined for each of the services provided; request queues for storing processing requests sent from clients for the services provided while putting the respective services into a particular order; queuing condition detection module for obtaining waiting conditions of the processing requests stored in the request queues; and a scheduler for deciding priorities to the processing requests input from the client to the transaction processing system by referring to the contract conditions and the waiting conditions of the processing requests.
摘要:
In the case where Web service providers and Web service brokers are successively connected in a multistage manner to form a tree structure, with each of the Web service brokers relaying messages to be transmitted and received between a Web service requestor and the Web service providers, not only the performance, states, and configurations of Web service providers which are directly called by a Web service broker, but also those of Web service providers existing in a descendant direction of the tree structure, are made use of as information used to determine a Web service provider to which a request message should be transmitted.
摘要:
A storage comprising an object access module for the shared part for implementing advanced I/O provides an interface for registering and deleting object description data declaring how to store objects within a second storage, in order to reduce the development cost of modules for implementing functions. Also, in order to reduce the total cost of ownership, modules are transferred to the storage through a management computer. The present invention allows the storage for contiguously providing functions effective to a vast range of applications to be provided with lower development cost as well as lower total cost of ownership.