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fix MIS x86 SubspaceMap Int64 instead of Int bug #597

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fix MIS x86 SubspaceMap Int64 instead of Int bug #597

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14 changes: 7 additions & 7 deletions lib/BloqadeMIS/src/loss.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -52,30 +52,30 @@ function rydberg_density_sum end
rydberg_density_sum(x) = rydberg_density_sum(identity, x)

struct SubspaceMap
d::Dict{Int,Int}
d::Dict{Int64,Int64}
end

function SubspaceMap(f, subspace::Subspace)
key = Vector{Int}(undef, length(subspace))
val = Vector{Int}(undef, length(subspace))
key = Vector{Int64}(undef, length(subspace))
val = Vector{Int64}(undef, length(subspace))
origin = vec(subspace)
@inbounds Threads.@threads for idx in 1:length(origin)
cfg = origin[idx]
key[idx] = cfg
val[idx] = to_int64(f(cfg))
end
return SubspaceMap(Dict{Int,Int}(zip(key, val)))
return SubspaceMap(Dict{Int64,Int64}(zip(key, val)))
end

Base.length(map::SubspaceMap) = length(map.d)
Base.getindex(map::SubspaceMap, cfg::Int) = map.d[cfg]
(map::SubspaceMap)(cfg::Int) = map[cfg]
Base.getindex(map::SubspaceMap, cfg::Integer) = map.d[cfg]
(map::SubspaceMap)(cfg::Integer) = map[cfg]

function to_int64(b::BitVector) # workaround type piracy
length(b) <= 64 || throw(ArgumentError("length is larger than 64"))
# NOTE: since we only use this to calculate number of ones
# thus we don't need to check top bit
return reinterpret(Int, b.chunks[1])
return reinterpret(Int64, b.chunks[1])
end

struct ConfigAmplitude{Reg<:YaoAPI.AbstractRegister}
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