remove Hessian from the default

Author: ChrisRackauckas

README.md

@@ -122,8 +122,8 @@ opts = Dict{Symbol,Bool}(
       :build_invjac => true,
       :build_invW => true,
       :build_invW_t => true,
-      :build_hes => true,
-      :build_invhes => true,
+      :build_hes => false,
+      :build_invhes => false,
       :build_dpfuncs => true)
 ```
 

src/macros.jl

@@ -5,8 +5,8 @@ macro ode_def(name,ex,params...)
     :build_expjac => false,
     :build_invjac => true,
     :build_invW => true,
-    :build_hes => true,
-    :build_invhes => true,
+    :build_hes => false,
+    :build_invhes => false,
     :build_dpfuncs => true)
     ode_def_opts(name,opts,ex,params...)
 end
@@ -44,7 +44,7 @@ macro ode_def_noinvhes(name,ex,params...)
     :build_expjac => false,
     :build_invjac => true,
     :build_invW => true,
-    :build_hes => true,
+    :build_hes => false,
     :build_invhes => false,
     :build_dpfuncs => true)
     ode_def_opts(name,opts,ex,params...)

test/runtests.jl

@@ -97,13 +97,15 @@ f(Val{:paramjac},t,u,[2.0;2.5;3.0],pJ)
 @test pJ == [2.0 -6.0 0
              0 0 -3.0]
 
+#=
 println("Test Hessians")
 H = J
 iH = iJ
 f(Val{:hes},t,u,H)
 @test_throws MethodError f(Val{:invhes},t,u,iH)
 @test J  == [0.0 0.0
              0.0 0.0]
+=#
 
 println("Test using new parameters")
 g = LotkaVolterra(a=1.0,b=2.0)
@@ -122,7 +124,7 @@ h(t,u,du)
 println("Test booleans")
 @test has_jac(f) == true
 @test has_invjac(f) == true
-@test has_hes(f) == true
+@test has_hes(f) == false
 @test has_invhes(f) == false
 @test has_paramderiv(f) == true
 @test has_paramjac(f) == true
@@ -148,7 +150,7 @@ end a=>1.5 μ=>1 c=3 d=4
 NJ(t,u,du)
 @test du == [-3.0;-3*3.0 + erf(2.0*3.0/4)]
 @test du == NJ(t,u)
-@test_throws MethodError NJ(Val{:jac},t,u,iH)
+@test_throws MethodError NJ(Val{:jac},t,u,iJ)
 # NJ(Val{:jac},t,u,J) # Currently gives E not defined, will be fixed by the next SymEgine
 ### FEM Macros