Abstract: A receiving device that converts, to a digital signal, a signal in which signal light from an optical transmission path and local oscillation light are mixed, so as to perform digital signal processing, the optical communication receiving device comprising: a frequency offset compensation unit configured to calculate a frequency offset of the digital signal and to, based on the frequency offset, compensate for a phase of the digital signal; a carrier phase recovery unit configured to calculate a carrier phase of the digital signal whose phase is compensated for in the frequency offset compensation unit; and a residual frequency offset detection unit configured to calculate an average of differences in the carrier phase, and to output the average as a residual frequency offset, wherein the frequency offset compensation unit is configured to correct the frequency offset using the residual frequency offset output by the residual frequency offset detection unit.

Abstract: A method includes: calculating a position-dependent processing load to be caused by a process that depends on a position of a cell, for each of cells into which a spatial area specified as a target of an analysis to be executed by processing devices that are included in a first number of processing devices and synchronize for each unit in time domain is divided; and assigning the cells to a second number of processing devices which are part or all of the first number of processing devices, under a condition where a criterion determined with respect to uniformity in a total processing time among processing devices used for the analysis is met. The total processing time of each processing device includes a length of time to be taken to execute each process depending on the position of each of cell(s) to be assigned to this processing device.

Abstract: A method includes: calculating a position-dependent processing load to be caused by a process that depends on a position of a cell, for each of cells into which a spatial area specified as a target of an analysis to be executed by processing devices that are included in a first number of processing devices and synchronize for each unit in time domain is divided; and assigning the cells to a second number of processing devices which are part or all of the first number of processing devices, under a condition where a criterion determined with respect to uniformity in a total processing time among processing devices used for the analysis is met. The total processing time of each processing device includes a length of time to be taken to execute each process depending on the position of each of cell(s) to be assigned to this processing device.

Abstract: A transposing apparatus is configured by a computer controlling a computing device having computing elements arranged into a matrix and memory devices connected to the computing elements. The computing device executes an electromagnetic field analysis process on latticed three-dimensional analysis subject data present in a three-dimensional coordinate system. The computer is configured to detect the number of lined-up lattices in a direction of a first axis, in a direction of a second axis, and in a direction of a third axis of the coordinate system, through detection on the three-dimensional analysis subject data; transpose a group of lattices of the three-dimensional analysis subject data, based on the detected numbers of lined-up lattices and on the number of lined-up computing elements in a row direction and in a column direction; and output to the computing device, the three-dimensional analysis subject data transposed.