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+ | costs of using the modelling system. | ||
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+ | HREF=" | ||
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+ | The methodology of CAPRI requires performing and stable software able to | ||
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+ | solve large-scale non-linear optimization problems, and GAMS offers | ||
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+ | interfaces to these so-called solvers. Additionally, | ||
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+ | designed specifically to support eonomic modelling. Numeric values in | ||
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+ | the CAPRI production chain are produced entirely by a sequence of GAMS | ||
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+ | programs. That reduces learning costs, and allows applying uniform | ||
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+ | solutions to coding, data and meta data handling and code documentation. | ||
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+ | GAMS.com typically offers interested parties a time limited test | ||
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+ | license, so that researchers who take part in a CAPRI training session | ||
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+ | can run CAPRI during the session even without possessing their own | ||
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+ | license.</ | ||
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+ | < | ||
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+ | the different work steps of CAPRI can be loaded and shown as tables, | ||
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+ | graphs and maps without the need to license third party software such as | ||
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+ | GAMS. Being written in Java, the CAPRI GUI requires a <A | ||
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+ | HREF=" | ||
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+ | Run Time Engine (JRE)</ | ||
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+ | < | ||
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+ | run are defined as objects with specific properties such as "base year", | ||
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+ | " | ||
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+ | before starting such a task, either interactively by the <A | ||
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+ | HREF="/ | ||
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+ | HREF=" | ||
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+ | executed as GAMS programs. | ||
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+ | can be accessed by other tasks or exploited by the user. The properties | ||
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+ | of the result set (file name and location, logical structure, symbol | ||
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+ | comprised ..) can be queried from the task. Each set of results | ||
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+ | comprises <A HREF=" | ||
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+ | The meta data allow e.g. to check if the outdated results are present in | ||
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+ | a CAPRI installation.</ | ||
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+ | < | ||
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+ | < | ||
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+ | CAPRI is now based on a < | ||
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+ | versioning system is especially important for the CAPRI coders | ||
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+ | who contribute as a distributed network to the maintenance and | ||
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+ | further development of CAPRI. But it offers also major benefits | ||
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+ | for those who are solely interesting in running simulations | ||
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+ | or even only exploiting results.</ | ||
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+ | < | ||
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+ | local working copies. | ||
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+ | (the versioning). | ||
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+ | to the server repository - a process called " | ||
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+ | number is increased. | ||
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+ | that all these incremental changes can be tracked, and roll-backs are | ||
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+ | possible. | ||
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+ | branches, or to " | ||
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+ | versioning system is well described in the <A | ||
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+ | HREF=" | ||
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+ | the recommended tool for CAPRI users.</ | ||
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+ | < | ||
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+ | < | ||
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+ | <UL> | ||
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+ | < | ||
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+ | </UL> | ||
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+ | < | ||
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+ | < | ||
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+ | you should hence ensure that the < | ||
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+ | <UL> | ||
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+ | < | ||
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+ | < | ||
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+ | < | ||
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+ | and results of existing scenarios can be analyzed without a GAMS licence). | ||
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+ | </ | ||
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+ | </UL> | ||
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+ | |||
+ | |||
+ | < | ||
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+ | of free disk space to do so, and a fast internet access; installation on a file server is possible. It is recommended to have at least 1 GByte of RAM to run CAPRI.</ | ||
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+ | |||
+ | |||
+ | < | ||
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+ | |||
+ | |||
+ | < | ||
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+ | you should hence ensure that the < | ||
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+ | <UL> | ||
+ | |||
+ | < | ||
+ | |||
+ | < | ||
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+ | < | ||
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+ | </UL> | ||
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+ | |||
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+ | < | ||
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+ | party products are installed on the computer (see below) is a so-called | ||
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+ | " | ||
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+ | manual</ | ||
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+ | computer of the user: all GAMS programs, input and result data and also | ||
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+ | the necessary files to start the GUI are copied from the versioning | ||
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+ | server to a local directory. | ||
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+ | internet connection, about 6 Gbyte of free disk space, and the access | ||
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+ | details for the SVN-Server. | ||
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+ | automatically synchronized to the server with " | ||
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+ | contributing to the code development of CAPRI also " | ||
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+ | changes to the server. | ||
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+ | HREF=" | ||
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+ | recommended is <A HREF=" | ||
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+ | target=" | ||
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+ | in the windows explorer so that all basic operations can be executed | ||
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+ | with mouse clicks. | ||
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+ | local copy is shown by icons, so that one sees already in the windows | ||
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+ | explorer any changes in the local copy since the last update.</ | ||
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+ | |||
+ | |||
+ | < | ||
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+ | |||
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+ | < | ||
+ | |||
+ | < | ||
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+ | < | ||
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+ | < | ||
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+ | versioning control system</ | ||
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+ | < | ||
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+ | < | ||
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+ | </ | ||
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+ | <P>We would like to thank all who have contributed | ||
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+ | to these products. The GUI itself was developed by Wolfgang | ||
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+ | Britz, with contributions of Alexander Gocht. But its current | ||
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+ | format and functionally would not be possible without the | ||
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+ | feedback and contributions of the CAPRI network, and the | ||
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+ | experiences gained over decades by staff at ILR, Bonn, | ||
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+ | especially Hans-Josef Greuel and Andrea Zintl.</ | ||
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+ | </ | ||
+ | |||
+ | </ | ||
+ | </ | ||