Abstract: A storage unit stores therein first information indicating the correspondence among each acquisition time point at which a result of measuring cumulative energy consumed during the execution of a program was acquired, the cumulative energy, and the memory address of an instruction executed at the acquisition time point. The storage unit stores therein second information indicating the correspondence between each executed part of the program and a range of the memory addresses of instructions of the program. A computation unit determines time points in the execution of a predetermined executed part, on the basis of the first and second information, and calculates cumulative energy for each of the time points with linear interpolation.

Abstract: A storage unit stores therein first information indicating the correspondence among each acquisition time point at which a result of measuring cumulative energy consumed during the execution of a program was acquired, the cumulative energy, and the memory address of an instruction executed at the acquisition time point. The storage unit stores therein second information indicating the correspondence between each executed part of the program and a range of the memory addresses of instructions of the program. A computation unit determines time points in the execution of a predetermined executed part, on the basis of the first and second information, and calculates cumulative energy for each of the time points with linear interpolation.

Abstract: An arithmetic processing device executes a program, and gives first sequence information to a first start time when a first process included in the program starts a first interprocess communication. Then, the first start time and the first sequence information are written in a main storage device. When second sequence information given to a second start time when a second process starts a second interprocess communication is newer than the first sequence information, an operational circuit in a communication control device does not carry out an operation using the first start time. On the other hand, when the second sequence information corresponds to the first sequence information, the operational circuit carries out an operation using the first start time and the second start time and outputs the operation result.

Abstract: An arithmetic processing device executes a program, and gives first sequence information to a first start time when a first process included in the program starts a first interprocess communication. Then, the first start time and the first sequence information are written in a main storage device. When second sequence information given to a second start time when a second process starts a second interprocess communication is newer than the first sequence information, an operational circuit in a communication control device does not carry out an operation using the first start time. On the other hand, when the second sequence information corresponds to the first sequence information, the operational circuit carries out an operation using the first start time and the second start time and outputs the operation result.

Abstract: Provided is a computer-readable, non-transitory medium storing an algorithm selection program for selecting one of algorithm among of a plurality of algorithms included in an extension program for executing a predetermined function when a call-out source program calls out the extension program, the algorithm selection program causing an information processing device including a storage device to execute:acquiring, from the storage device, selection information in which a command for calling out the extension program in the call-out source program and the one of algorithm are correlated; and selecting an algorithm for executing the predetermined function based on the acquired selection information.

Abstract: A statistics estimation apparatus that calculates an estimated statistic value of executed program comprises an executer that executes a target program using the number of data that is smaller than the number of data intended to be executed, and calculates a partial process statistic of a processor which executes the partial processes of the program, for each of the numbers of data and each of the partial processes, a creator which creates a mathematical formula for calculating an overall statistic of the processor when a whole program is executed with the number of data intended for execution, based on the calculated partial process statistic and the number of processed data when the partial process statistic is calculated, and a calculator that calculates an estimated statistic when the program is executed with the number of data intended for execution, based on the created mathematical formula.

Abstract: Provided is a computer-readable, non-transitory medium storing an algorithm selection program for selecting one of algorithm among of a plurality of algorithms included in an extension program for executing a predetermined function when a call-out source program calls out the extension program, the algorithm selection program causing an information processing device including a storage device to execute:acquiring, from the storage device, selection information in which a command for calling out the extension program in the call-out source program and the one of algorithm are correlated; and selecting an algorithm for executing the predetermined function based on the acquired selection information.

Abstract: A document retrieval system performing retrieval of electronic documents includes, a document database storing a plurality of pieces of document data, a transposed index storage device storing a transposed index in which the document numbers of the document data containing a keyword string are registered, a document number subsequence search start address table storage device storing a document number subsequence search start address indicating a position where an assigned document group start document number is recorded, a document retrieval managing unit having document number subsequence acquisition request means for transmitting the total number of documents, and a plurality of the document number subsequence acquisition apparatuses having assigned document group determination means for determining a document group in a sequence in accordance with the preset apparatus number of a local apparatus as the assigned document group.

Abstract: Transmission overhead that takes a long period of time in calculating processes with an iterative solution technique is to be suppressed. After its own calculation result is calculated with the calculating processes, calculating processes are repeatedly executed without waiting for a determination as to whether the calculation result is significant. After the calculating processes are started and when an indication that the significance can be determined is transmitted because of reception of calculation results from other computer apparatuses via transmission units, or, when a request as to whether the significance can be determined is sent and an indication that the significance can be determined is obtained as a result of the request, the significance of its own calculation result is determined. When it is determined that the calculation result is significant, the calculation processes are suspended.

Abstract: A statistics estimation apparatus that calculates an estimated statistic value of executed program comprises an executer that executes a target program using the number of data that is smaller than the number of data intended to be executed, and calculates a partial process statistic of a processor which executes the partial processes of the program, for each of the numbers of data and each of the partial processes, a creator which creates a mathematical formula for calculating an overall statistic of the processor when a whole program is executed with the number of data intended for execution, based on the calculated partial process statistic and the number of processed data when the partial process statistic is calculated, and a calculator that calculates an estimated statistic when the program is executed with the number of data intended for execution, based on the created mathematical formula.

Abstract: A document retrieval system performing retrieval of electronic documents includes, a document database storing a plurality of pieces of document data, a transposed index storage device storing a transposed index in which the document numbers of the document data containing a keyword string are registered, a document number subsequence search start address table storage device storing a document number subsequence search start address indicating a position where an assigned document group start document number is recorded, a document retrieval managing unit having document number subsequence acquisition request means for transmitting the total number of documents, and a plurality of the document number subsequence acquisition apparatuses having assigned document group determination means for determining a document group in a sequence in accordance with the preset apparatus number of a local apparatus as the assigned document group.

Abstract: A information retrieving method of realizing the improvement of retrieval performance without conducting fine-grain processing and allowing a parallelizing operation for sequential retrieval engines to be conducted easily. Accordingly, the information retrieving method according to this invention is made to connect retrieving servers in parallel with respect to a retrieval managing server through the use of a parallel framework which makes the retrieving servers conduct parallel processing by integrating the functions of the retrieving servers in a manner of directly using the functions thereof without changing. The data to be retrieved is distributed or substantially equally to the retrieving servers, while the retrieval requests from clients are successively broadcasted to the retrieving servers without waiting for the retrieval results from the retrieving servers. This invention can be effectively applied for fetching necessary information from a database retaining various kinds of information.