[错误/性能] 默认情况下, spk_model 光谱聚类会饱和每个 CPU 核心

only the leading eigenpairs are ever used

n_eig = max_num_spks + 1 if k_oracle is not None: n_eig = max(n_eig, int(k_oracle)) n_eig = min(n_eig, L.shape[0]) lambdas, eig_vecs = scipy.linalg.eigh(L, subset_by_index=[0, n_eig - 1])

and cap BLAS, which defaults to one

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