PHG. ParallelHierarchicalGrid is a toolbox for writing scalable parallel adaptive finite element programs. PHG. provides functions which perform common and difficult tasks in parallel adaptive finite element pro-grams, such as: management of unstructured parallel (distributed) meshes, parallel adaptive mesh refinement and coarsening,
PHG (Parallel Hierarchical Grid) - C), C
PHG (Parallel Hierarchical Grid) 是科学与工程计算国家重点实验室正在发展的专门为三维自适应有限元设计的并行程序开发平台，其核心是分布式的层次网格结构。目前，PHG 处理的网格对象是三维四面体协调网格。
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PHG - lsec.cc.ac.cn
distribute the max-min values in the auxiliary vector to the element object of PHG. In this way, we can realize the MPI communication automatically through the neighbour interface of PHG. Finally, we show that the MLP limiter can obtain expected accuracy and superior resolution, and the solver can attain 60 % parallel efficiency on 1024 cores.
PHG works with conforming tetrahedral meshes which are adaptively refined by bisectioning selected tetrahedra. It is designed for distributed memeory parallel com-
R. Shen, Q. Zhang and B. Lu / Commun. Comput. Phys., 36 (2024), pp. 521-550 525 The constant β=1/(k BT) is the inverse Boltzmann energy, where k B is the Boltzmann constant, and T is the absolute temperature. ϵ is the piecewise dielectric constant with ϵ=ϵmϵ 0 in Ωm and ϵ=ϵsϵ 0 in Ωs, where ϵ 0 is the dielectric constant of vacuum, and the
In this paper, we demonstrate the application of PHG to electromagnetic computations with two examples in which 3D time harmonic Maxwell’s equations are solved.
Divergence-free FEM for MHD equations 3 with H1()-conforming nite elements and Bwith H(curl;)-conforming nite elements. The mixed nite element method yields a discrete magnetic induction
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The State Key Laboratory of Scientific and Engineering Computing (LSEC) is located in the Institute of Computational Mathematics and Scientific/Engineering Computing of the Chinese Academy of Sciences.
Based on the adaptive mesh refinement interfaces in PHG, we successfully develop and implement parallel unstructured mesh generation algorithms for a given molecular PQR file.
90 L.B. ZHANG, T. CUI AND H. LIU on triangles and tetrahedra because they are naturally related to the geometric symmetry of the integration domain and can be represented in a compact form using symmetry orbits, and