From 7fd4503af9dfdf7022ae75f7398cac8fda811c85 Mon Sep 17 00:00:00 2001 From: Benjamin Bolm <74359358+bennibolm@users.noreply.github.com> Date: Thu, 12 Oct 2023 15:31:43 +0200 Subject: [PATCH] Subcell limiting: Revise order of bounds using a `Dict` (#1649) * Implement order of bounds as Dict * Implement `variable_bounds` directly as Dictionary * Remove unnecessary line of code * Use Symbols instead of Strings --- src/solvers/dgsem_tree/containers_2d.jl | 31 ++++++++++--------- src/solvers/dgsem_tree/subcell_limiters.jl | 5 +-- src/solvers/dgsem_tree/subcell_limiters_2d.jl | 31 ++++++++----------- 3 files changed, 32 insertions(+), 35 deletions(-) diff --git a/src/solvers/dgsem_tree/containers_2d.jl b/src/solvers/dgsem_tree/containers_2d.jl index 9148b936312..fc916b41dd2 100644 --- a/src/solvers/dgsem_tree/containers_2d.jl +++ b/src/solvers/dgsem_tree/containers_2d.jl @@ -1325,16 +1325,16 @@ mutable struct ContainerSubcellLimiterIDP2D{uEltype <: Real} alpha::Array{uEltype, 3} # [i, j, element] alpha1::Array{uEltype, 3} alpha2::Array{uEltype, 3} - variable_bounds::Vector{Array{uEltype, 3}} + variable_bounds::Dict{Symbol, Array{uEltype, 3}} # internal `resize!`able storage _alpha::Vector{uEltype} _alpha1::Vector{uEltype} _alpha2::Vector{uEltype} - _variable_bounds::Vector{Vector{uEltype}} + _variable_bounds::Dict{Symbol, Vector{uEltype}} end function ContainerSubcellLimiterIDP2D{uEltype}(capacity::Integer, n_nodes, - length) where {uEltype <: Real} + bound_keys) where {uEltype <: Real} nan_uEltype = convert(uEltype, NaN) # Initialize fields with defaults @@ -1345,12 +1345,12 @@ function ContainerSubcellLimiterIDP2D{uEltype}(capacity::Integer, n_nodes, _alpha2 = fill(nan_uEltype, n_nodes * (n_nodes + 1) * capacity) alpha2 = unsafe_wrap(Array, pointer(_alpha2), (n_nodes, n_nodes + 1, capacity)) - _variable_bounds = Vector{Vector{uEltype}}(undef, length) - variable_bounds = Vector{Array{uEltype, 3}}(undef, length) - for i in 1:length - _variable_bounds[i] = fill(nan_uEltype, n_nodes * n_nodes * capacity) - variable_bounds[i] = unsafe_wrap(Array, pointer(_variable_bounds[i]), - (n_nodes, n_nodes, capacity)) + _variable_bounds = Dict{Symbol, Vector{uEltype}}() + variable_bounds = Dict{Symbol, Array{uEltype, 3}}() + for key in bound_keys + _variable_bounds[key] = fill(nan_uEltype, n_nodes * n_nodes * capacity) + variable_bounds[key] = unsafe_wrap(Array, pointer(_variable_bounds[key]), + (n_nodes, n_nodes, capacity)) end return ContainerSubcellLimiterIDP2D{uEltype}(alpha, alpha1, alpha2, @@ -1369,7 +1369,7 @@ nnodes(container::ContainerSubcellLimiterIDP2D) = size(container.alpha, 1) function Base.resize!(container::ContainerSubcellLimiterIDP2D, capacity) n_nodes = nnodes(container) - @unpack _alpha, _alpha1, _alpha2 = container + (; _alpha, _alpha1, _alpha2) = container resize!(_alpha, n_nodes * n_nodes * capacity) container.alpha = unsafe_wrap(Array, pointer(_alpha), (n_nodes, n_nodes, capacity)) resize!(_alpha1, (n_nodes + 1) * n_nodes * capacity) @@ -1379,11 +1379,12 @@ function Base.resize!(container::ContainerSubcellLimiterIDP2D, capacity) container.alpha2 = unsafe_wrap(Array, pointer(_alpha2), (n_nodes, n_nodes + 1, capacity)) - @unpack _variable_bounds = container - for i in 1:length(_variable_bounds) - resize!(_variable_bounds[i], n_nodes * n_nodes * capacity) - container.variable_bounds[i] = unsafe_wrap(Array, pointer(_variable_bounds[i]), - (n_nodes, n_nodes, capacity)) + (; _variable_bounds) = container + for (key, _) in _variable_bounds + resize!(_variable_bounds[key], n_nodes * n_nodes * capacity) + container.variable_bounds[key] = unsafe_wrap(Array, + pointer(_variable_bounds[key]), + (n_nodes, n_nodes, capacity)) end return nothing diff --git a/src/solvers/dgsem_tree/subcell_limiters.jl b/src/solvers/dgsem_tree/subcell_limiters.jl index 3a707de3bc7..4d9eec25a89 100644 --- a/src/solvers/dgsem_tree/subcell_limiters.jl +++ b/src/solvers/dgsem_tree/subcell_limiters.jl @@ -52,9 +52,10 @@ function SubcellLimiterIDP(equations::AbstractEquations, basis; positivity_variables_cons = [], positivity_correction_factor = 0.1) positivity = (length(positivity_variables_cons) > 0) - number_bounds = length(positivity_variables_cons) - cache = create_cache(SubcellLimiterIDP, equations, basis, number_bounds) + bound_keys = Tuple(Symbol("$(i)_min") for i in positivity_variables_cons) + + cache = create_cache(SubcellLimiterIDP, equations, basis, bound_keys) SubcellLimiterIDP{typeof(positivity_correction_factor), typeof(cache)}(positivity, positivity_variables_cons, diff --git a/src/solvers/dgsem_tree/subcell_limiters_2d.jl b/src/solvers/dgsem_tree/subcell_limiters_2d.jl index 09ab84ed11a..4497217fb56 100644 --- a/src/solvers/dgsem_tree/subcell_limiters_2d.jl +++ b/src/solvers/dgsem_tree/subcell_limiters_2d.jl @@ -6,17 +6,14 @@ #! format: noindent # this method is used when the limiter is constructed as for shock-capturing volume integrals -function create_cache(indicator::Type{SubcellLimiterIDP}, - equations::AbstractEquations{2}, - basis::LobattoLegendreBasis, number_bounds) +function create_cache(limiter::Type{SubcellLimiterIDP}, equations::AbstractEquations{2}, + basis::LobattoLegendreBasis, bound_keys) subcell_limiter_coefficients = Trixi.ContainerSubcellLimiterIDP2D{real(basis) }(0, nnodes(basis), - number_bounds) + bound_keys) - cache = (; subcell_limiter_coefficients) - - return cache + return (; subcell_limiter_coefficients) end function (limiter::SubcellLimiterIDP)(u::AbstractArray{<:Any, 4}, semi, dg::DGSEM, t, @@ -26,8 +23,7 @@ function (limiter::SubcellLimiterIDP)(u::AbstractArray{<:Any, 4}, semi, dg::DGSE alpha .= zero(eltype(alpha)) if limiter.positivity - @trixi_timeit timer() "positivity" idp_positivity!(alpha, limiter, u, dt, - semi) + @trixi_timeit timer() "positivity" idp_positivity!(alpha, limiter, u, dt, semi) end # Calculate alpha1 and alpha2 @@ -50,22 +46,21 @@ end @inline function idp_positivity!(alpha, limiter, u, dt, semi) # Conservative variables - for (index, variable) in enumerate(limiter.positivity_variables_cons) - idp_positivity!(alpha, limiter, u, dt, semi, variable, index) + for variable in limiter.positivity_variables_cons + idp_positivity!(alpha, limiter, u, dt, semi, variable) end return nothing end -@inline function idp_positivity!(alpha, limiter, u, dt, semi, variable, index) +@inline function idp_positivity!(alpha, limiter, u, dt, semi, variable) mesh, equations, dg, cache = mesh_equations_solver_cache(semi) - @unpack antidiffusive_flux1, antidiffusive_flux2 = cache.antidiffusive_fluxes - @unpack inverse_weights = dg.basis - @unpack positivity_correction_factor = limiter - - @unpack variable_bounds = limiter.cache.subcell_limiter_coefficients + (; antidiffusive_flux1, antidiffusive_flux2) = cache.antidiffusive_fluxes + (; inverse_weights) = dg.basis + (; positivity_correction_factor) = limiter - var_min = variable_bounds[index] + (; variable_bounds) = limiter.cache.subcell_limiter_coefficients + var_min = variable_bounds[Symbol("$(variable)_min")] @threaded for element in eachelement(dg, semi.cache) inverse_jacobian = cache.elements.inverse_jacobian[element]