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Technical aspects
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Distributed memory features in the cycle 39 of ARPEGE/IFS (November 2012). (Technical aspects)
Wednesday 28 November 2012
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Table of contents Abstract Contents Abstract:
This documentation describes some aspects of the memory distribution for parallel environment. It is written as a complement of some other documentations (mainly the ECMWF documentation) so some points are not detailed (...)
Minimizations in the cycle 39 of ARPEGE/IFS (November 2012) (Technical aspects)
Wednesday 28 November 2012
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Table of contents Abstract Contents Abstract:
This documentation describes the minimizations done in ARPEGE/IFS, for example in the 3DVAR and 4DVAR assimilation. First some algorithmic aspects are recalled about minimizers and solving of linear algebra systems. There (...)
Trajectory management in the cycle 39 of ARPEGE/IFS (November 2012). (Technical aspects)
Wednesday 28 November 2012
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Table of contents Abstract Contents Abstract:
In ARPEGE/IFS, some applications (for example a 4DVAR minimisation) uses a tangent linear code and an adjoint code. Such codes require to compute a trajectory, this trajectory is computed by running the direct code. The (...)
User’s guide to add new GFL variables or new GFL attributes in ARPEGE/IFS, ALADIN, AROME: CYCLE 39 (November 2012) (Technical aspects)
Wednesday 28 November 2012
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Table of contents Abstract Contents Abstract:
This documentation is an user’s guide for people wanting to introduce new GFL variables or new GFL attributes.
Contents:
Introduction.
Add a new GFL variable: main features.
Add a new GFL variable: additional (...)
User’s guide to add new surface variables or new surface attributes in ARPEGE/IFS, ALADIN, AROME: cycle 39 (November 2012) (Technical aspects)
Wednesday 28 November 2012
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Table of contents Abstract Contents Abstract:
This documentation is a user’s guide for people wanting to introduce new surface fields, or new surface attributes. Some parts of this documentation are still uncomplete. (...)
Keywords in the cycle 39 of ARPEGE/IFS (NOV 2012). (Technical aspects)
Wednesday 28 November 2012
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Abstract:
This documentation has the aim to attribute one or several keywords to each routine of the libraries ARP/IFS and ALD.
Distributed Memory : introduction (2002) (Technical aspects)
Wednesday 6 July 2005
The architecture of ARPEGE/IFS/ALADIN software, which must be executed in real-time, is designed to run on high performance machines, which includes machines with a large number of processors. The research of performance is base on the Amdal’s law that shows obviously, that the developer should (...)
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