Tweaks

src/Symmetry/AllowedAnisotropy.jl

@@ -135,7 +135,7 @@ function suggest_frame_for_atom(cryst::Crystal, i::Int)
     end
 
     if isempty(axes_counts)
-        @warn "Could not find a symmetry axis."
+        @info "Could not find a symmetry axis."
         return Mat3(I)
     end
 
@@ -170,7 +170,7 @@ function suggest_frame_for_atom(cryst::Crystal, i::Int)
     orthogonal_axes_counts = filter(x -> abs(x[1]⋅z_dir) < 1e-12, axes_counts)
 
     if isempty(orthogonal_axes_counts)
-        @warn "Could not find a symmetry axis orthogonal to $z_dir."
+        @info "Could not find a symmetry axis orthogonal to $z_dir."
         x_dir = (z_dir ≈ Vec3(1,0,0)) ? Vec3(0,0,1) : Vec3(1,0,0)
         x_dir = normalize(x_dir - (x_dir⋅z_dir)*z_dir)
     else

src/Symmetry/Crystal.jl

@@ -136,7 +136,7 @@ end
 function print_crystal_warnings(latvecs, positions)
     det(latvecs) < 0 && @warn "Lattice vectors are not right-handed."
     if length(positions) >= 100
-        @warn """This a very large crystallographic cell, which Sunny does not handle well.
+        @info """This a very large crystallographic cell, which Sunny does not handle well.
                  If the intention is to model chemical inhomogeneity, the recommended procedure is as
                  follows: First, create a small unit cell with an idealized structure. Next, create
                  a perfectly periodic `System` of the desired size. Finally, use `to_inhomogeneous`
@@ -492,7 +492,7 @@ function subcrystal(cryst::Crystal, classes::Vararg{Int, N}) where N
     new_sitesyms = cryst.sitesyms[atoms]
 
     if atoms != 1:maximum(atoms)
-        @warn "Atoms are being renumbered."
+        @info "Atoms have been renumbered in subcrystal."
     end
 
     ret = Crystal(cryst.latvecs, cryst.prim_latvecs, new_positions, new_types, new_classes, new_sitesyms,

src/Symmetry/Parsing.jl

@@ -108,14 +108,14 @@ function Crystal(filename::AbstractString; symprec=nothing)
         end
         (err, i) = findmax(errs)
         if err < 1e-12
-            @warn """Precision parameter is unspecified, but all coordinates seem to be simple fractions.
+            @info """Precision parameter is unspecified, but all coordinates seem to be simple fractions.
                      Setting symprec=1e-12."""
             symprec = 1e-12
         elseif 1e-12 < err < 1e-4
             symprec = 15err
             err_str = @sprintf "%.1e" err
             symprec_str = @sprintf "%.1e" symprec
-            @warn """Precision parameter is unspecified, but coordinate string '$s' seems to have error $err_str.
+            @info """Precision parameter is unspecified, but coordinate string '$s' seems to have error $err_str.
                      Setting symprec=$symprec_str."""
         else
             error("Cannot infer precision. Please provide an explicit `symprec` parameter to load '$filename'")

src/Symmetry/Printing.jl

@@ -282,7 +282,7 @@ function print_allowed_anisotropy(cryst::Crystal, i::Int; R::Mat3, atol, digits,
             for b in reverse(collect(eachcol(B)))
 
                 if any(x -> 1e-12 < abs(x) < 1e-6, b)
-                    @warn """Found a very small but nonzero expansion coefficient.
+                    @info """Found a very small but nonzero expansion coefficient.
                              This may indicate a slightly misaligned reference frame."""
                 end
 

src/System/Interactions.jl

@@ -4,6 +4,17 @@ function empty_interactions(na, N)
     end
 end
 
+# Warn up to `OverrideWarningMax` times about overriding a coupling
+OverrideWarningCnt::Int = 0
+OverrideWarningMax::Int = 5
+function warn_coupling_override(str)
+    global OverrideWarningCnt, OverrideWarningMax
+    OverrideWarningCnt < OverrideWarningMax && @info str
+    OverrideWarningCnt += 1
+    OverrideWarningCnt == OverrideWarningMax && @info "Suppressing future override notifications."
+end
+
+
 # Creates a clone of the lists of exchange interactions, which can be mutably
 # updated.
 function clone_interactions(ints::Interactions)

src/System/OnsiteCoupling.jl

@@ -152,7 +152,7 @@ function set_onsite_coupling!(sys::System{N}, op::Matrix{ComplexF64}, i::Int) wh
     (1 <= i <= natoms(sys.crystal)) || error("Atom index $i is out of range.")
 
     if !iszero(ints[i].onsite)
-        @info "Overriding anisotropy for atom $i."
+        warn_coupling_override("Overriding anisotropy for atom $i.")
     end
 
     onsite = OnsiteCoupling(sys, op, sys.Ns[1,1,1,i])

src/System/PairExchange.jl

@@ -99,7 +99,7 @@ function set_exchange!(sys::System{N}, J, bond::Bond; biquad=0.) where N
 
     # Print a warning if an interaction already exists for bond
     if any(x -> x.bond == bond, ints[bond.i].pair)
-        @info "Overriding exchange for bond $bond."
+        warn_coupling_override("Overriding coupling for $bond.")
     end
 
     for i in 1:natoms(sys.crystal)