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fix perf issue loadmodel! #2241

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merged 4 commits into from
Apr 25, 2023
Merged

fix perf issue loadmodel! #2241

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1b2a74c
fix perf issue loadmodel!
CarloLucibello Apr 25, 2023
851be1b
reinstate filter
CarloLucibello Apr 25, 2023
2943cfd
cleanup
CarloLucibello Apr 25, 2023
d1a5dba
cleanup
CarloLucibello Apr 25, 2023
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27 changes: 15 additions & 12 deletions src/loading.jl
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Original file line number Diff line number Diff line change
@@ -1,19 +1,23 @@
loadleaf!(dst, src, err) = dst
loadleaf!(dst::AbstractArray, src, err) =
loadleaf!(dst, src) = dst
loadleaf!(dst::AbstractArray, src) =
error("Tried to copy $src into an array destination; this is not allowed.")
loadleaf!(dst, src::AbstractArray, err) =
loadleaf!(dst, src::AbstractArray) =
error("Tried to copy an array to $dst; this is not allowed.")
function loadleaf!(dst::AbstractArray, src::Bool, err)

function loadleaf!(dst::AbstractArray, src::Bool)
if iszero(src)
dst .= src
else
error("Cannot copy boolean parameter == true to non-zero parameter.")
end
return dst
end
loadleaf!(dst::Bool, src::AbstractArray, err) = iszero(dst) ? dst :

loadleaf!(dst::Bool, src::AbstractArray) = iszero(dst) ? dst :
error("Cannot copy non-zero parameter to boolean parameter == true.")
function loadleaf!(dst::AbstractArray, src::AbstractArray, err)

function loadleaf!(dst::AbstractArray, src::AbstractArray)
err = DimensionMismatch("Tried to load size $(size(src)) array into size $(size(dst))")
(size(dst) == size(src)) || throw(err)
copyto!(dst, src)
end
Expand Down Expand Up @@ -82,20 +86,19 @@ Likewise, copying a `src` value of `false` to any `dst` array is valid,
but copying a `src` value of `true` will error.
"""
function loadmodel!(dst, src; filter = _ -> true, cache = Base.IdSet())
ldsts = _filter_children(filter, functor(dst)[1])
lsrcs = _filter_children(filter, functor(src)[1])
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ldsts = _filter_children(filter, Functors.children(dst))
lsrcs = _filter_children(filter, Functors.children(src))
(keys(ldsts) == keys(lsrcs)) ||
throw(ArgumentError("Tried to load $src into $dst but the structures do not match."))
throw(ArgumentError("Tried to load $(keys(lsrcs)) into $(keys(ldsts)) but the structures do not match."))

err = DimensionMismatch("Tried to load $src into $dst but the parameter sizes do not match.")
foreach(ldsts, lsrcs) do ldst, lsrc
if ldst in cache # we already loaded this parameter before
_tie_check(ldst, lsrc) && return ldst
elseif Functors.isleaf(ldst) # our first time loading this leaf
push!(cache, ldst)
loadleaf!(ldst, lsrc, err)
loadleaf!(ldst, lsrc)
else # this isn't a leaf
loadmodel!(ldst, lsrc; filter = filter, cache = cache)
loadmodel!(ldst, lsrc; filter, cache)
end
end

Expand Down