Her2k¶
Hermitian rank-2K update: updates
\(C := \alpha A B^H + \bar \alpha B A^H + \beta C\), or
\(C := \alpha A^H B + \bar \alpha B^H A + \beta C\), depending upon whether
orientation is set to NORMAL or ADJOINT, respectively. Only the
triangle of \(C\) specified by the uplo parameter is modified.
Please see SetLocalTrr2kBlocksize<T>()
and LocalTrr2kBlocksize<T>() in the
Tuning parameters section for information on tuning the distributed
Her2k().
Note
For the best performance, A, B, and C should all be in [MC,MR] distributions.
C++ API¶
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void
Her2k(UpperOrLower uplo, Orientation orientation, T alpha, const Matrix<T> &A, const Matrix<T> &B, Base<T> beta, Matrix<T> &C)¶
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void
Her2k(UpperOrLower uplo, Orientation orientation, T alpha, const AbstractDistMatrix<T> &A, const AbstractDistMatrix<T> &B, Base<T> beta, AbstractDistMatrix<T> &C)¶
C API¶
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ElError
ElHer2k_c(ElUpperOrLower uplo, ElOrientation orientation, complex_float alpha, ElConstMatrix_c A, ElConstMatrix_c B, float beta, ElMatrix_c C)¶
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ElError
ElHer2k_z(ElUpperOrLower uplo, ElOrientation orientation, complex_double alpha, ElConstMatrix_z A, ElConstMatrix_z B, double beta, ElMatrix_z C)¶
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ElError
ElHer2kDist_c(ElUpperOrLower uplo, ElOrientation orientation, complex_float alpha, ElConstDistMatrix_c A, ElConstDistMatrix_c B, float beta, ElDistMatrix_c C)¶
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ElError
ElHer2kDist_z(ElUpperOrLower uplo, ElOrientation orientation, complex_double alpha, ElConstDistMatrix_z A, ElConstDistMatrix_z B, double beta, ElDistMatrix_z C)¶