GitHub - evvwevv/NBodySim: N-body simulation programmed in C and distributed using the OpenMPI library

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N-body simulation programmed in C and distributed using the OpenMPI library

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Name		Name	Last commit message	Last commit date
Latest commit History 2 Commits
.gitignore		.gitignore
.ycm_extra_conf.py		.ycm_extra_conf.py
Distributing Direct N-body Simulations.pdf		Distributing Direct N-body Simulations.pdf
Makefile		Makefile
README.txt		README.txt
culite.h		culite.h
daniel_test.in		daniel_test.in
daniel_test_expected.out		daniel_test_expected.out
dist.out		dist.out
dist2.out		dist2.out
dist2_driver.c		dist2_driver.c
dist_driver.c		dist_driver.c
generate_input.py		generate_input.py
new_seq.out		new_seq.out
particles.in		particles.in
particles_100.in		particles_100.in
seq.out		seq.out
seq_driver.c		seq_driver.c
sim.c		sim.c
sim.h		sim.h
test.in		test.in
test_dist1.out		test_dist1.out
test_dist2.out		test_dist2.out
test_dist2_again.out		test_dist2_again.out
test_main.c		test_main.c
test_runner.c		test_runner.c
test_seq.out		test_seq.out
vector.c		vector.c
vector.h		vector.h

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Distributing Direct N-Body Simulations

Authors:
    Steven Johnson
    Daniel Sabsay

This directory contains three algorithms: a single-threaded, sequential implementation,
and two distributed implementations.

Running the sequential implementation:
    Works on unix1,unix2,unix3,unix4 machines in CSL.
    Compile: "make seq_sim"
    Run: "./seq_sim particles_100.in"
    Note: If using a different number of particles, "N" must be set in "sim.h".

Running the Distributed v1 algorithm:
    Works on unix1,unix2,unix3,unix4 machines in CSL.
    Compile: "make dist_sim"
    Run: "mpiexec -n 4 dist_sim particles_100.in"
    Note: If using a different number of particles, "N" must be set in "sim.h".

Running the Distributed v2 algorithm:
    WILL NOT run on CSL machines (requires MPI_THREAD_MULTIPLE support).
    Compile: "make dist2_sim"
    Run: "mpiexec -n 4 dist2_sim particles_100.in"
    Note: If using a different number of particles "N" must be set in "sim.h".
          Also, if using a different number of nodes, "NUM_NODES" must be set
          in "dist2_driver.c".