Adaptive SIMD optimizations in particle-in-cell codes with fine-grain particle sorting
نویسندگان
چکیده
منابع مشابه
3 D Gyrokinetic Particle – In – Cell Codes
We have ported a three–dimensional, electrostatic, gyrokinetic, particle–in–cell (PIC) plasma simulation code from the Cray2 to the BBN TC2000 and the Thinking Machines CM2. On the TC2000, we employed the PFP split–join programming paradigm[?]; on the CM2 we employed the CM Fortran data– parallel programming language. Though our hopes to produce codes ten or more times faster than the Cray2 cod...
متن کاملFine-Grained Data Distribution Operations for Particle Codes
This paper proposes a new fine-grained data distribution operation MPI Alltoall specific that allows an element-wise distribution of data elements to specific target processes. This operation can be used to implement irregular data distribution operations that are required, for example, in particle codes. We present different implementation variants for MPI Alltoall specific which are based on ...
متن کاملDynamics in fine particle magnets
Several magnetic fine particle systems have been studied with selective excitation double Mössbauer ~SEDM! spectroscopy. Static disorder, collective excitations, and superparamagnetic spin flips are all detected and their contributions quantified. Zero-field muon spin relaxation spectroscopy has been used to confirm these observations in one sample. A theoretical description of SEDM spectra in ...
متن کاملOptimizations of the energy grid search algorithm in continuous-energy Monte Carlo particle transport codes
In this work we propose, implement, and test various optimizations of the typical energy grid-cross section pair lookup algorithm in Monte Carlo particle transport codes. The key feature common to all of the optimizations is a reduction in the length of the vector of energies that must be searched when locating the index of a particle’s current energy. Other factors held constant, a reduction i...
متن کاملParallelization of plasma simulation codes: gridless finite size particle versus particle in cell approach
The main features of gridless finite-size-particle codes are examined and compared with those of particle-in-cell ones, from the point of view of the performances that can be obtained, with respect to both the spatial-resolution level and the efficiency of parallel particle simulations. The particle-decomposition parallelization strategy is discussed, and its implementation in the framework of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Computer Physics Communications
سال: 2019
ISSN: 0010-4655
DOI: 10.1016/j.cpc.2019.05.001