The Adaptive TreePM: an adaptive resolution code for cosmologicalN-body simulations
نویسندگان
چکیده
منابع مشابه
A TreePM code for Cosmological N-Body simulations
We describe a hybrid technique for carrying out large N-Body simulations to study formation and evolution of the large scale structure in the Universe. This hybrid code, called the treePM code, is a combination of Barnes and Hut (1986) tree code and Particle-Mesh code. Such a code combines the speed of PM simulations and the automatic inclusion of periodic boundary conditions with the high reso...
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In this paper, we describe the implementation and performance of GreeM, a massively parallel TreePM code for large-scale cosmological N-body simulations. GreeM uses the recursive multi-section algorithm for domain decomposition. The size of the domains are adjusted so that the total calculation time of the force become the same on all processes. The loss of the performance due to non-optimal lo...
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The Adaptive Resolution Scheme (AdResS) is a hybrid scheme that allows to treat a molecular system with different levels of resolution depending on the location of the molecules. The construction of a Hamiltonian based on the this idea (H-AdResS) allows one to formulate the usual tools of ensembles and statistical mechanics. We present a number of exact and approximate results that provide a st...
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We have developed a simulation code with the techniques which enhance both spatial and time resolution of the PM method for which the spatial resolution is restricted by the spacing of structured mesh. The adaptive mesh refinement (AMR) technique subdivides the cells which satisfy the refinement criterion recursively. The hierarchical meshes are maintained by the special data structure and are ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2009
ISSN: 0035-8711,1365-2966
DOI: 10.1111/j.1365-2966.2009.14880.x