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Threaded version of reconstruct_sol
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@ -115,20 +115,21 @@ function matrix_reps{T<:GroupElem}(G::Group, S::Vector{T}, AutS::Group, radius::
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end
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function reconstruct_sol{T<:GroupElem, S<:AbstractArray}(mreps::Dict{T, S},
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Us::Vector, Ps::Vector, dims::Vector)
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Us::Vector, Ps::Vector, dims::Vector)
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n = size(Us[1],1)
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recP = zeros(Float64, (n,n))
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Ust = transpose.(Us)
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for g in keys(mreps)
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A, B = mreps[g], mreps[inv(g)]
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for π in 1:length(Us)
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recP .+= dims[π].* (A * Us[π]*Ps[π]*Ust[π] * B)
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end
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end
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recP .*= 1/length(keys(mreps))
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recP[abs.(recP) .< eps(eltype(recP))] = zero(eltype(recP))
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return recP
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s = size(first(mreps).second)
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recP = zeros(Float64, s)
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tmp = [zeros(Float64, s) for _ in 1:length(Us)]
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ks = [(g, inv(g)) for g in keys(mreps)]
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Threads.@threads for π in 1:length(Us)
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for (g, invg) in ks
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tmp[π] += dims[π]*mreps[g]*Us[π]*Ps[π]*Us[π]'*mreps[invg]
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end
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end
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recP += 1/length(keys(mreps)) .* sum(tmp)
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recP[abs.(recP) .< eps(eltype(recP))] = zero(eltype(recP))
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return recP
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end
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function Cstar_repr{T}(x::GroupRingElem{T}, mreps::Dict)
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