Added Feagin Package

lib/OrdinaryDiffEqFeagin/Project.toml

@@ -0,0 +1,19 @@
+name = "OrdinaryDiffEqFeagin"
+uuid = "101fe9f7-ebb6-4678-b671-3a81e7194747"
+authors = ["ParamThakkar123 <[email protected]>"]
+version = "1.0.0"
+
+[deps]
+OrdinaryDiffEq = "1dea7af3-3e70-54e6-95c3-0bf5283fa5ed"
+
+[extras]
+DiffEqDevTools = "f3b72e0c-5b89-59e1-b016-84e28bfd966d"
+Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
+SafeTestsets = "1bc83da4-3b8d-516f-aca4-4fe02f6d838f"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+
+[compat]
+julia = "1.10"
+
+[targets]
+test = ["DiffEqDevTools", "Random", "SafeTestsets", "Test"]

lib/OrdinaryDiffEqFeagin/src/OrdinaryDiffEqFeagin.jl

@@ -0,0 +1,25 @@
+module OrdinaryDiffEqFeagin
+
+import OrdinaryDiffEq: alg_order, calculate_residuals!,
+                       initialize!, perform_step!, @unpack, unwrap_alg,
+                       calculate_residuals,
+                       OrdinaryDiffEqAlgorithm,
+                       OrdinaryDiffEqMutableCache, OrdinaryDiffEqConstantCache,
+                       OrdinaryDiffEqAdaptiveAlgorithm, CompiledFloats, uses_uprev,
+                       alg_cache, _vec, _reshape, @cache, isfsal, full_cache,
+                       constvalue, _unwrap_val, du_alias_or_new,
+                       explicit_rk_docstring, trivial_limiter!,
+                       _ode_interpolant!, _ode_addsteps!
+using DiffEqBase, FastBroadcast, Polyester, MuladdMacro, RecursiveArrayTools
+using DiffEqBase: @def, @tight_loop_macros
+using Static: False
+
+include("algorithms.jl")
+include("alg_utils.jl")
+include("feagin_tableaus.jl")
+include("feagin_caches.jl")
+include("feagin_rk_perform_step.jl")
+
+export Feagin10, Feagin12, Feagin14
+
+end

lib/OrdinaryDiffEqFeagin/src/alg_utils.jl

@@ -0,0 +1,6 @@
+alg_order(alg::Feagin10) = 10
+alg_order(alg::Feagin12) = 12
+alg_order(alg::Feagin14) = 14
+
+alg_adaptive_order(alg::Feagin10) = 8
+alg_adaptive_order(alg::Feagin14) = 12

lib/OrdinaryDiffEqFeagin/src/algorithms.jl

@@ -0,0 +1,41 @@
+"""
+@article{feagin2012high,
+title={High-order explicit Runge-Kutta methods using m-symmetry},
+author={Feagin, Terry},
+year={2012},
+publisher={Neural, Parallel \\& Scientific Computations}
+}
+
+Feagin10: Explicit Runge-Kutta Method
+Feagin's 10th-order Runge-Kutta method.
+"""
+Base.@kwdef struct Feagin10{StepLimiter} <: OrdinaryDiffEqAdaptiveAlgorithm
+    step_limiter!::StepLimiter = trivial_limiter!
+end
+
+"""
+@article{feagin2012high,
+title={High-order explicit Runge-Kutta methods using m-symmetry},
+author={Feagin, Terry},
+year={2012},
+publisher={Neural, Parallel \\& Scientific Computations}
+}
+
+Feagin12: Explicit Runge-Kutta Method
+Feagin's 12th-order Runge-Kutta method.
+"""
+Base.@kwdef struct Feagin12{StepLimiter} <: OrdinaryDiffEqAdaptiveAlgorithm
+    step_limiter!::StepLimiter = trivial_limiter!
+end
+
+"""
+Feagin, T., “An Explicit Runge-Kutta Method of Order Fourteen,” Numerical
+Algorithms, 2009
+
+Feagin14: Explicit Runge-Kutta Method
+Feagin's 14th-order Runge-Kutta method.
+"""
+Base.@kwdef struct Feagin14{StepLimiter} <: OrdinaryDiffEqAdaptiveAlgorithm
+    step_limiter!::StepLimiter = trivial_limiter!
+end
+

src/perform_step/feagin_rk_perform_step.jl → lib/OrdinaryDiffEqFeagin/src/feagin_rk_perform_step.jl

@@ -1294,4 +1294,4 @@ end
     end
     f(integrator.fsallast, u, p, t + dt) # For the interpolation, needs k at the updated point
     integrator.stats.nf += 1
-end
+end

src/tableaus/feagin_tableaus.jl → lib/OrdinaryDiffEqFeagin/src/feagin_tableaus.jl

@@ -2647,4 +2647,4 @@ function Feagin14ConstantCache(T::Type, T2::Type)
         b5, b6, b7, b8, b9, b10, b11, b12, b13, b14, b15, b16, b17, b18,
         b19, b20, b21, b22, b23, b24, b25, b26, b27, b28, b29, b30, b31,
         b32, b33, b34, b35)
-end
+end

src/OrdinaryDiffEq.jl

@@ -148,7 +148,6 @@ include("composite_algs.jl")
 include("caches/basic_caches.jl")
 include("caches/low_order_rk_caches.jl")
 include("caches/high_order_rk_caches.jl")
-include("caches/feagin_caches.jl")
 include("caches/verner_caches.jl")
 include("caches/sdirk_caches.jl")
 include("caches/firk_caches.jl")
@@ -170,7 +169,6 @@ include("tableaus/low_order_rk_tableaus.jl")
 include("tableaus/high_order_rk_tableaus.jl")
 include("tableaus/symplectic_tableaus.jl")
 include("tableaus/verner_tableaus.jl")
-include("tableaus/feagin_tableaus.jl")
 include("tableaus/rosenbrock_tableaus.jl")
 include("tableaus/sdirk_tableaus.jl")
 include("tableaus/firk_tableaus.jl")
@@ -195,7 +193,6 @@ include("perform_step/explicit_rk_perform_step.jl")
 include("perform_step/low_order_rk_perform_step.jl")
 include("perform_step/high_order_rk_perform_step.jl")
 include("perform_step/verner_rk_perform_step.jl")
-include("perform_step/feagin_rk_perform_step.jl")
 include("perform_step/sdirk_perform_step.jl")
 include("perform_step/kencarp_kvaerno_perform_step.jl")
 include("perform_step/firk_perform_step.jl")
@@ -265,6 +262,10 @@ export SSPRK53_2N2, SSPRK22, SSPRK53, SSPRK63, SSPRK83, SSPRK43, SSPRK432, SSPRK
        SSPRK54, SSPRK53_2N1, SSPRK104, SSPRK932, SSPRKMSVS43, SSPRK73, SSPRK53_H, 
        SSPRK33, SHLDDRK_2N, KYKSSPRK42, SHLDDRK52
 
+include("../lib/OrdinaryDiffEqFeagin/src/OrdinaryDiffEqFeagin.jl")
+using ..OrdinaryDiffEqFeagin
+export Feagin10, Feagin12, Feagin14
+
 import PrecompileTools
 
 PrecompileTools.@compile_workload begin
@@ -398,7 +399,7 @@ export constructDormandPrince
 export FunctionMap, Euler, Heun, Ralston, Midpoint, RK4, ExplicitRK, OwrenZen3, OwrenZen4,
        OwrenZen5,
        BS3, BS5, DP5, Tsit5, DP8, Vern6, Vern7, Vern8, TanYam7, TsitPap8,
-       Vern9, Feagin10, Feagin12, Feagin14, CompositeAlgorithm, Anas5, RKO65, FRK65, PFRK87,
+       Vern9, CompositeAlgorithm, Anas5, RKO65, FRK65, PFRK87,
        RKM, MSRK5, MSRK6, Stepanov5, SIR54, QPRK98, PSRK4p7q6, PSRK3p6q5, PSRK3p5q4
 
 export RadauIIA3, RadauIIA5

src/alg_utils.jl

@@ -531,9 +531,6 @@ alg_order(alg::SFSDIRK7) = 4
 alg_order(alg::SFSDIRK8) = 4
 alg_order(alg::Hairer4) = 4
 alg_order(alg::Hairer42) = 4
-alg_order(alg::Feagin10) = 10
-alg_order(alg::Feagin12) = 12
-alg_order(alg::Feagin14) = 14
 alg_order(alg::PFRK87) = 8
 
 alg_order(alg::ROS2) = 2
@@ -621,8 +618,6 @@ alg_maximum_order(alg::CompositeAlgorithm) = maximum(alg_order(x) for x in alg.a
 
 alg_adaptive_order(alg::ExplicitRK) = alg.tableau.adaptiveorder
 alg_adaptive_order(alg::Union{OrdinaryDiffEqAlgorithm, DAEAlgorithm}) = alg_order(alg) - 1
-alg_adaptive_order(alg::Feagin10) = 8
-alg_adaptive_order(alg::Feagin14) = 12
 
 alg_adaptive_order(alg::Rosenbrock23) = 3
 alg_adaptive_order(alg::Rosenbrock32) = 2

src/algorithms.jl

@@ -81,7 +81,6 @@ ExplicitRK(; tableau = ODE_DEFAULT_TABLEAU) = ExplicitRK(tableau)
 TruncatedStacktraces.@truncate_stacktrace ExplicitRK
 
 @inline trivial_limiter!(u, integrator, p, t) = nothing
-
 """
     SIR54(; stage_limiter! = OrdinaryDiffEq.trivial_limiter!,
              step_limiter! = OrdinaryDiffEq.trivial_limiter!,

src/algorithms/explicit_rk.jl

@@ -406,47 +406,6 @@ function TsitPap8(stage_limiter!, step_limiter! = trivial_limiter!)
     TsitPap8(stage_limiter!, step_limiter!, False())
 end
 
-"""
-@article{feagin2012high,
-title={High-order explicit Runge-Kutta methods using m-symmetry},
-author={Feagin, Terry},
-year={2012},
-publisher={Neural, Parallel \\& Scientific Computations}
-}
-
-Feagin10: Explicit Runge-Kutta Method
-Feagin's 10th-order Runge-Kutta method.
-"""
-Base.@kwdef struct Feagin10{StepLimiter} <: OrdinaryDiffEqAdaptiveAlgorithm
-    step_limiter!::StepLimiter = trivial_limiter!
-end
-
-"""
-@article{feagin2012high,
-title={High-order explicit Runge-Kutta methods using m-symmetry},
-author={Feagin, Terry},
-year={2012},
-publisher={Neural, Parallel \\& Scientific Computations}
-}
-
-Feagin12: Explicit Runge-Kutta Method
-Feagin's 12th-order Runge-Kutta method.
-"""
-Base.@kwdef struct Feagin12{StepLimiter} <: OrdinaryDiffEqAdaptiveAlgorithm
-    step_limiter!::StepLimiter = trivial_limiter!
-end
-
-"""
-Feagin, T., “An Explicit Runge-Kutta Method of Order Fourteen,” Numerical
-Algorithms, 2009
-
-Feagin14: Explicit Runge-Kutta Method
-Feagin's 14th-order Runge-Kutta method.
-"""
-Base.@kwdef struct Feagin14{StepLimiter} <: OrdinaryDiffEqAdaptiveAlgorithm
-    step_limiter!::StepLimiter = trivial_limiter!
-end
-
 @doc explicit_rk_docstring("Zero Dissipation Runge-Kutta of 6th order.", "FRK65",
     extra_keyword_description = """- `omega`: a periodicity phase estimate,
                                    when accurate this method results in zero numerical dissipation.

test/runtests.jl

@@ -41,6 +41,12 @@ function activate_stabilized_irk()
     Pkg.instantiate()
 end
 
+function activate_low_storage_rk()
+    Pkg.activate("../lib/OrdinaryDiffEqStabilizedIRK")
+    Pkg.develop(PackageSpec(path = dirname(@__DIR__)))
+    Pkg.instantiate()
+end
+
 function activate_low_storage_rk()
     Pkg.activate("../lib/OrdinaryDiffEqLowStorageRK")
     Pkg.develop(PackageSpec(path = dirname(@__DIR__)))
@@ -53,6 +59,12 @@ function activate_ssprk()
     Pkg.instantiate()
 end
 
+function activate_feagin()
+    Pkg.activate("../lib/OrdinaryDiffEqFeagin")
+    Pkg.develop(PackageSpec(path = dirname(@__DIR__)))
+    Pkg.instantiate()
+end
+
 #Start Test Script
 
 @time begin
@@ -187,7 +199,6 @@ end
         @time @safetestset "FIRK Tests" include("algconvergence/ode_firk_tests.jl")
         @time @safetestset "Linear-Nonlinear Methods Tests" include("algconvergence/linear_nonlinear_convergence_tests.jl")
         @time @safetestset "Linear-Nonlinear Krylov Methods Tests" include("algconvergence/linear_nonlinear_krylov_tests.jl")
-        @time @safetestset "Feagin Tests" include("algconvergence/ode_feagin_tests.jl")
         @time @safetestset "Symplectic Tests" include("algconvergence/symplectic_tests.jl")
         @time @safetestset "Quadruple precision Runge-Kutta Tests" include("algconvergence/ode_quadruple_precision_tests.jl")
     end
@@ -196,6 +207,10 @@ end
         @time @safetestset "Extrapolation Tests" include("../lib/OrdinaryDiffEqExtrapolation/test/runtests.jl")
     end
 
+    if !is_APPVEYOR && GROUP == "Feagin"
+        @time @safetestset "Feagin Tests" include("../lib/OrdinaryDiffEqFeagin/test/ode_feagin_tests.jl")
+    end
+
     if !is_APPVEYOR && GROUP == "StabilizedRK"
         @time @safetestset "StabilizedRK Tests" include("../lib/OrdinaryDiffEqStabilizedRK/test/runtests.jl")
     end