fix: eigensolver

src/FullOrthoLanczos.jl

@@ -129,8 +129,10 @@ LanczosEigen(init_vector::AbstractVector{T},
 function eigensolver(A::itFOLMResult{T,S,U,V}) where {T,S,U,V}
     @unpack init_vector, symtridiagonal, krylov_basis = A
     values, Q = eigen(symtridiagonal) 
-    values = convert(S, values)
-    Q = convert(V, Q)
+    if S<:CuArray
+        values = convert(CuArray, values)
+        Q = convert(CuArray, Q)
+    end
     vectors = krylov_basis * Q
     weight = Q[1,:]
     return LanczosEigen(init_vector, weight, values, vectors)