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Try to use vector multiplication for truncation error computation #443

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Try to use vector multiplication for truncation error computation
kshyatt Jun 1, 2026
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kshyatt Jun 2, 2026
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7 changes: 7 additions & 0 deletions ext/TensorKitCUDAExt/truncation.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -74,3 +74,10 @@ function MatrixAlgebraKit._ind_intersect(A::CuVector{Bool}, B::CuVector{Int})
result[B] .= @view A[B]
return result
end

function MatrixAlgebraKit.truncation_error!(values::CuSectorVector, ind)
for (c, ind_c) in pairs(ind)
@. values[c] *= !ind_c
end
return norm(values)
end
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