文件列表:

BarnesHutParticleSystem.cpp (17502, 2018-12-10)
BarnesHutParticleSystem.h (1720, 2018-12-10)
BarnesHutParticleSystem.o (425376, 2018-12-10)
Lock.cuh (372, 2018-12-10)
Makefile (991, 2018-12-10)
ParticleSystem.cpp (4731, 2018-12-10)
ParticleSystem.h (781, 2018-12-10)
Particle_cuda.cu (2000, 2018-12-10)
Particle_cuda.cuh (1118, 2018-12-10)
Particle_cuda.o (63224, 2018-12-10)
SimulationParameters.h (372, 2018-12-10)
contributors.txt (11, 2018-12-10)
debug.cpp (3581, 2018-12-10)
debug.h (580, 2018-12-10)
debug.o (69888, 2018-12-10)
kernels.cu (11285, 2018-12-10)
kernels.cuh (1227, 2018-12-10)
kernels.o (191296, 2018-12-10)
main.cpp (5342, 2018-12-10)
main.o (58272, 2018-12-10)

PROJECT STATUS: complete Contained in this directory is code for simulating the n-body problem using the barnes-hut tree algorithm.The barnes hut cuda code is loosely based on the openCL code by Benjamin Neukom https://github.com/bneukom/gpu-nbody and the paper "An Efficient CUDA Implementation of the Tree-Based Barnes Hut n-Body Algorithm" by Martin Burtscher and Keshav Pingali. ***************************************** Dependencies ***************************************** This software requires the Nvidia CUDA toolkit installed on a system with a CUDA capable device (gcc must also be installed).To install CUDA see https://developer.nvidia.com/cuda-downloads and the CUDA Quick Start Guide. ***************************************** Compiling ***************************************** Before compiling see notes below. To compile the code simply type in a terminal: make clean make build ***************************************** Running ***************************************** To run the barnes-hut algorithm with benchmarks for 500 iterations, simply type: ./main -barnes-hut -benchmark -iterations=500 ***************************************** Notes ***************************************** Currently you must manually set the number of particles (numbodies) in main.cpp and then ensure that the blockSize variable in kernels.cu and the blockSize and gridSize variables in particle_cuda.cu matches. For example if you set numbodies = ******* in main.cpp, then you must also set blockSize = *** in kernels.cu, and blockSize = ***, gridSize = ***, in particle_cuda.cu.

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