PLASMA  2.8.0
PLASMA - Parallel Linear Algebra for Scalable Multi-core Architectures
void CORE_zlantr ( PLASMA_enum  norm,
PLASMA_enum  uplo,
PLASMA_enum  diag,
int  M,
int  N,
const PLASMA_Complex64_t *  A,
int  LDA,
double *  work,
double *  normA 
)

CORE_zlantr returns the value

zlantr = ( max(abs(A(i,j))), NORM = PlasmaMaxNorm ( ( norm1(A), NORM = PlasmaOneNorm ( ( normI(A), NORM = PlasmaInfNorm ( ( normF(A), NORM = PlasmaFrobeniusNorm

where norm1 denotes the one norm of a matrix (maximum column sum), normI denotes the infinity norm of a matrix (maximum row sum) and normF denotes the Frobenius norm of a matrix (square root of sum of squares). Note that max(abs(A(i,j))) is not a consistent matrix norm.

Parameters
[in]norm= PlasmaMaxNorm: Max norm = PlasmaOneNorm: One norm = PlasmaInfNorm: Infinity norm = PlasmaFrobeniusNorm: Frobenius norm
[in]uploSpecifies whether the matrix A is upper triangular or lower triangular: = PlasmaUpper: Upper triangle of A is stored; = PlasmaLower: Lower triangle of A is stored.
[in]diagSpecifies whether or not A is unit triangular: = PlasmaNonUnit: A is non unit; = PlasmaUnit: A us unit.
[in]MThe number of rows of the matrix A. M >= 0. If uplo == PlasmaUpper, M <= N. When M = 0, CORE_zlantr returns 0.
[in]NThe number of columns of the matrix A. N >= 0. If uplo == PlasmaLower, N <= M. When N = 0, CORE_zlantr returns 0.
[in]AThe LDA-by-N matrix A.
[in]LDAThe leading dimension of the array A. LDA >= max(1,M).
[in,out]workArray of dimension (MAX(1,LWORK)), where LWORK >= M when norm = PlasmaInfNorm, or LWORK >= N when norm = PlasmaOneNorm; otherwise, work is not referenced.
[out]normAOn exit, normA is the norm of matrix A.