MAGMA  2.3.0
Matrix Algebra for GPU and Multicore Architectures
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sytrs: Symmetric indefinite forward and back solves - no pivoting

Functions

magma_int_t magma_csytrs_nopiv_gpu (magma_uplo_t uplo, magma_int_t n, magma_int_t nrhs, magmaFloatComplex_ptr dA, magma_int_t ldda, magmaFloatComplex_ptr dB, magma_int_t lddb, magma_int_t *info)
 CSYTRS solves a system of linear equations A*X = B with a complex symmetric matrix A using the factorization A = U * D * U**H or A = L * D * L**T computed by CSYTRF_NOPIV_GPU. More...
 
magma_int_t magma_zsytrs_nopiv_gpu (magma_uplo_t uplo, magma_int_t n, magma_int_t nrhs, magmaDoubleComplex_ptr dA, magma_int_t ldda, magmaDoubleComplex_ptr dB, magma_int_t lddb, magma_int_t *info)
 ZSYTRS solves a system of linear equations A*X = B with a complex symmetric matrix A using the factorization A = U * D * U**H or A = L * D * L**T computed by ZSYTRF_NOPIV_GPU. More...
 

Detailed Description

Function Documentation

magma_int_t magma_csytrs_nopiv_gpu ( magma_uplo_t  uplo,
magma_int_t  n,
magma_int_t  nrhs,
magmaFloatComplex_ptr  dA,
magma_int_t  ldda,
magmaFloatComplex_ptr  dB,
magma_int_t  lddb,
magma_int_t *  info 
)

CSYTRS solves a system of linear equations A*X = B with a complex symmetric matrix A using the factorization A = U * D * U**H or A = L * D * L**T computed by CSYTRF_NOPIV_GPU.

Parameters
[in]uplomagma_uplo_t
  • = MagmaUpper: Upper triangle of A is stored;
  • = MagmaLower: Lower triangle of A is stored.
[in]nINTEGER The order of the matrix A. N >= 0.
[in]nrhsINTEGER The number of right hand sides, i.e., the number of columns of the matrix B. NRHS >= 0.
[in]dACOMPLEX array on the GPU, dimension (LDDA,N) The block diagonal matrix D and the multipliers used to obtain the factor U or L as computed by CSYTRF_NOPIV_GPU.
[in]lddaINTEGER The leading dimension of the array A. LDDA >= max(1,N).
[in,out]dBCOMPLEX array on the GPU, dimension (LDDB,NRHS) On entry, the right hand side matrix B. On exit, the solution matrix X.
[in]lddbINTEGER The leading dimension of the array B. LDDB >= max(1,N).
[out]infoINTEGER
  • = 0: successful exit
  • < 0: if INFO = -i, the i-th argument had an illegal value
magma_int_t magma_zsytrs_nopiv_gpu ( magma_uplo_t  uplo,
magma_int_t  n,
magma_int_t  nrhs,
magmaDoubleComplex_ptr  dA,
magma_int_t  ldda,
magmaDoubleComplex_ptr  dB,
magma_int_t  lddb,
magma_int_t *  info 
)

ZSYTRS solves a system of linear equations A*X = B with a complex symmetric matrix A using the factorization A = U * D * U**H or A = L * D * L**T computed by ZSYTRF_NOPIV_GPU.

Parameters
[in]uplomagma_uplo_t
  • = MagmaUpper: Upper triangle of A is stored;
  • = MagmaLower: Lower triangle of A is stored.
[in]nINTEGER The order of the matrix A. N >= 0.
[in]nrhsINTEGER The number of right hand sides, i.e., the number of columns of the matrix B. NRHS >= 0.
[in]dACOMPLEX_16 array on the GPU, dimension (LDDA,N) The block diagonal matrix D and the multipliers used to obtain the factor U or L as computed by ZSYTRF_NOPIV_GPU.
[in]lddaINTEGER The leading dimension of the array A. LDDA >= max(1,N).
[in,out]dBCOMPLEX_16 array on the GPU, dimension (LDDB,NRHS) On entry, the right hand side matrix B. On exit, the solution matrix X.
[in]lddbINTEGER The leading dimension of the array B. LDDB >= max(1,N).
[out]infoINTEGER
  • = 0: successful exit
  • < 0: if INFO = -i, the i-th argument had an illegal value