![]() ![]() ![]() ![]() This is a fundamental requirement when one wants to study fusion plasmas with realistic conductivities. Firstly, it employs a novel conservative finite volume scheme which is remarkably robust and stable, and demands very small physical and/or numerical dissipation. PIXIE3D advances the state of the art in extended MHD modeling in two fundamental ways. It features a general geometry formulation, and is therefore suitable for the study of many magnetic fusion configurations of interest. PIXIE3D is a modern, parallel, state-of-the-art extended MHD code that employs fully implicit methods for efficiency and accuracy. International Nuclear Information System (INIS) PIXIE3D: An efficient, fully implicit, parallel, 3D extended MHD code for fusion plasma modeling Has the code been vectorized or parallelized?: Yes, parallelized using MPI. of bytes in distributed program, including test data, etc.: 19837671 Distribution format: tar.gz Programming language: FORTRAN 90/MPI. of lines in distributed program, including test data, etc.: 620503 No. Ireland Licensing provisions: Standard CPC licence, No. Catalogue identifier: AERP_v1_0 Program summary URL: Program obtainable from: CPC Program Library, Queen’s University, Belfast, N. Finally, we discuss the performance of the code on a parallel supercomputer with distributed memory architecture. We find good agreement with available results on this subject in the literature. The code is also applied to the problem of simulating the magnetorotational instability in 2.5D shearing box tests as well as in global simulations of magnetized accretion disks. We demonstrate the capabilities of GRADSPMHD by running 1, 2, and 3 dimensional standard benchmark tests and we find good agreement with previous work done by other researchers. The structure of the code closely follows the framework of our parallel GRADSPH FORTRAN 90 code which we added previously to the CPC program library. The code uses a tree-based formalism for neighbor finding and can optionally use the tree code for computing the self-gravity of the plasma. The implementation of the equations of SPMHD in the “GRAD-h†formalism assembles known results, including the derivation of the discretized MHD equations from a variational principle, the inclusion of time-dependent artificial viscosity, resistivity and conductivity terms, as well as the inclusion of a mixed hyperbolic/parabolic correction scheme for satisfying the ∇ṡB→ constraint on the magnetic field. We present GRADSPMHD, a completely Lagrangian parallel magnetohydrodynamics code based on the SPH formalism. GRADSPMHD: A parallel MHD code based on the SPH formalism ![]()
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