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Add real-life SPH benchmarks #29

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Aug 7, 2024
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1 change: 1 addition & 0 deletions benchmarks/benchmarks.jl
Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
include("count_neighbors.jl")
include("n_body.jl")
include("smoothed_particle_hydrodynamics.jl")
include("update.jl")

include("plot.jl")
72 changes: 72 additions & 0 deletions benchmarks/smoothed_particle_hydrodynamics.jl
Original file line number Diff line number Diff line change
@@ -0,0 +1,72 @@
using PointNeighbors
using TrixiParticles
using BenchmarkTools

"""
benchmark_wcsph(neighborhood_search, coordinates; parallel = true)

A benchmark of the right-hand side of a full real-life Weakly Compressible
Smoothed Particle Hydrodynamics (WCSPH) simulation with TrixiParticles.jl.
This method is used to simulate an incompressible fluid.
"""
function benchmark_wcsph(neighborhood_search, coordinates; parallel = true)
density = 1000.0
fluid = InitialCondition(; coordinates, density, mass = 0.1)

# Compact support == smoothing length for the Wendland kernel
smoothing_length = PointNeighbors.search_radius(neighborhood_search)
smoothing_kernel = WendlandC2Kernel{ndims(neighborhood_search)}()

sound_speed = 10.0
state_equation = StateEquationCole(; sound_speed, reference_density = density,
exponent = 1)

fluid_density_calculator = ContinuityDensity()
viscosity = ArtificialViscosityMonaghan(alpha = 0.02, beta = 0.0)
density_diffusion = DensityDiffusionMolteniColagrossi(delta = 0.1)

fluid_system = WeaklyCompressibleSPHSystem(fluid, fluid_density_calculator,
state_equation, smoothing_kernel,
smoothing_length, viscosity = viscosity,
density_diffusion = density_diffusion)

v = vcat(fluid.velocity, fluid.density')
u = copy(fluid.coordinates)
dv = zero(v)

# Initialize the system
TrixiParticles.initialize!(fluid_system, neighborhood_search)
TrixiParticles.compute_pressure!(fluid_system, v)

return @belapsed TrixiParticles.interact!($dv, $v, $u, $v, $u, $neighborhood_search,
$fluid_system, $fluid_system)
end

"""
benchmark_tlsph(neighborhood_search, coordinates; parallel = true)

A benchmark of the right-hand side of a full real-life Total Lagrangian
Smoothed Particle Hydrodynamics (TLSPH) simulation with TrixiParticles.jl.
This method is used to simulate an elastic structure.
"""
function benchmark_tlsph(neighborhood_search, coordinates; parallel = true)
material = (density = 1000.0, E = 1.4e6, nu = 0.4)
solid = InitialCondition(; coordinates, density = material.density, mass = 0.1)

# Compact support == smoothing length for the Wendland kernel
smoothing_length = PointNeighbors.search_radius(neighborhood_search)
smoothing_kernel = WendlandC2Kernel{ndims(neighborhood_search)}()

solid_system = TotalLagrangianSPHSystem(solid, smoothing_kernel, smoothing_length,
material.E, material.nu)

v = copy(solid.velocity)
u = copy(solid.coordinates)
dv = zero(v)

# Initialize the system
TrixiParticles.initialize!(solid_system, neighborhood_search)

return @belapsed TrixiParticles.interact!($dv, $v, $u, $v, $u, $neighborhood_search,
$solid_system, $solid_system)
end
2 changes: 2 additions & 0 deletions test/Project.toml
Original file line number Diff line number Diff line change
Expand Up @@ -3,8 +3,10 @@ BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"
Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
TrixiParticles = "66699cd8-9c01-4e9d-a059-b96c86d16b3a"

[compat]
BenchmarkTools = "1"
Plots = "1"
Test = "1"
TrixiParticles = "0.2"
8 changes: 8 additions & 0 deletions test/benchmarks.jl
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,14 @@
@test_nowarn_mod plot_benchmarks(benchmark_n_body, size, 2)
end

@testset verbose=true "`benchmark_wcsph`" begin
@test_nowarn_mod plot_benchmarks(benchmark_wcsph, size, 2)
end

@testset verbose=true "`benchmark_tlsph`" begin
@test_nowarn_mod plot_benchmarks(benchmark_tlsph, size, 2)
end

@testset verbose=true "`benchmark_initialize`" begin
@test_nowarn_mod plot_benchmarks(benchmark_initialize, size, 2)
end
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