Coupling calculation method and system

A calculation method and technology of a calculation system, applied in the field of coupling calculation, can solve problems such as incomplete solution and low derivative precision

Inactive Publication Date: 2015-09-16
TSINGHUA UNIV
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  • Abstract
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Problems solved by technology

[0019] Since the derivative f'(x) calculated according to formula (3) n ) is very low accuracy, so the "Coupling Computing Service Software" needs to go through many Newton iterations to realize the coupling solution, and often even the solution cannot be completed

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  • Coupling calculation method and system
  • Coupling calculation method and system

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Embodiment Construction

[0048] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0049] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0050] like Figure 4 As shown, the coupling calculation method according to one embodiment of the present invention includes:

[0051] S1, the coupling calculation service module randomly generate...

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Abstract

The invention relates to a coupling calculation method and system. The method includes the following steps that a coupling calculation service module generates a plurality of first independent variables, and the first independent variables are transmitted to corresponding independent calculation modules respectively; the independent calculation modules calculate corresponding residual errors, and derivatives, at the first independent variables, of equations to be solved are calculated according to an automatic differentiation method; the coupling calculation service module carries out calculation to obtain a plurality of second independent variables; the independent calculation modules judge whether the second independent variables are solutions of the corresponding equations to be solved or not, if not, circular calculation is carried out until calculated independent variables are the solutions of the corresponding equations to be solved, and if yes, the solutions are output. The derivative, at the corresponding first independent variable, of each equation to be solved is calculated by the corresponding independent calculation module according to the automatic differentiation method, high-precision calculation results can be obtained, the number of follow-up iterations of the coupling calculation service module is reduced to a great degree, and the calculation stability of the coupling calculation service module is greatly improved.

Description

technical field [0001] The present invention relates to the technical field of coupled computing, in particular to a coupled computing method and a coupled computing system. Background technique [0002] The coupled solution of multiple computing software refers to two or more independent computing software, in the process of iterative solving, they need to provide part of the information to each other to achieve the solution. For example, the equation f(x) to be solved of calculation software A=0, and the equation g(y) to be solved of calculation software B=0. Neither of these two computing software can complete the solution independently, because A computing software needs B computing software to provide information about x, and B computing software needs A computing software to provide information about y, so it is necessary to exchange data during the iterative solution process, like figure 1 As shown, the data of the nth iteration needs to be exchanged. [0003] To r...

Claims

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Application Information

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IPC IPC(8): G06F17/11
Inventor 孙喜明石磊董玉杰李富马远乐
Owner TSINGHUA UNIV
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