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MAGMA
2.7.1
Matrix Algebra for GPU and Multicore Architectures
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Functions | |
magma_int_t | magma_csytrf_nopiv_gpu (magma_uplo_t uplo, magma_int_t n, magmaFloatComplex_ptr dA, magma_int_t ldda, magma_int_t *info) |
CSYTRF_nopiv_gpu computes the LDLt factorization of a complex symmetric matrix A. More... | |
magma_int_t | magma_zsytrf_nopiv_gpu (magma_uplo_t uplo, magma_int_t n, magmaDoubleComplex_ptr dA, magma_int_t ldda, magma_int_t *info) |
ZSYTRF_nopiv_gpu computes the LDLt factorization of a complex symmetric matrix A. More... | |
magma_int_t magma_csytrf_nopiv_gpu | ( | magma_uplo_t | uplo, |
magma_int_t | n, | ||
magmaFloatComplex_ptr | dA, | ||
magma_int_t | ldda, | ||
magma_int_t * | info | ||
) |
CSYTRF_nopiv_gpu computes the LDLt factorization of a complex symmetric matrix A.
The factorization has the form A = U^T * D * U, if UPLO = MagmaUpper, or A = L * D * L^T, if UPLO = MagmaLower, where U is an upper triangular matrix, L is lower triangular, and D is a diagonal matrix.
This is the block version of the algorithm, calling Level 3 BLAS.
[in] | uplo | magma_uplo_t
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[in] | n | INTEGER The order of the matrix A. N >= 0. |
[in,out] | dA | COMPLEX array on the GPU, dimension (LDDA,N) On entry, the symmetric matrix A. If UPLO = MagmaUpper, the leading N-by-N upper triangular part of A contains the upper triangular part of the matrix A, and the strictly lower triangular part of A is not referenced. If UPLO = MagmaLower, the leading N-by-N lower triangular part of A contains the lower triangular part of the matrix A, and the strictly upper triangular part of A is not referenced. On exit, if INFO = 0, the factor U or L from the Cholesky factorization A = U^H D U or A = L D L^H. Higher performance is achieved if A is in pinned memory, e.g. allocated using cudaMallocHost. |
[in] | ldda | INTEGER The leading dimension of the array A. LDDA >= max(1,N). |
[out] | info | INTEGER
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magma_int_t magma_zsytrf_nopiv_gpu | ( | magma_uplo_t | uplo, |
magma_int_t | n, | ||
magmaDoubleComplex_ptr | dA, | ||
magma_int_t | ldda, | ||
magma_int_t * | info | ||
) |
ZSYTRF_nopiv_gpu computes the LDLt factorization of a complex symmetric matrix A.
The factorization has the form A = U^T * D * U, if UPLO = MagmaUpper, or A = L * D * L^T, if UPLO = MagmaLower, where U is an upper triangular matrix, L is lower triangular, and D is a diagonal matrix.
This is the block version of the algorithm, calling Level 3 BLAS.
[in] | uplo | magma_uplo_t
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[in] | n | INTEGER The order of the matrix A. N >= 0. |
[in,out] | dA | COMPLEX_16 array on the GPU, dimension (LDDA,N) On entry, the symmetric matrix A. If UPLO = MagmaUpper, the leading N-by-N upper triangular part of A contains the upper triangular part of the matrix A, and the strictly lower triangular part of A is not referenced. If UPLO = MagmaLower, the leading N-by-N lower triangular part of A contains the lower triangular part of the matrix A, and the strictly upper triangular part of A is not referenced. On exit, if INFO = 0, the factor U or L from the Cholesky factorization A = U^H D U or A = L D L^H. Higher performance is achieved if A is in pinned memory, e.g. allocated using cudaMallocHost. |
[in] | ldda | INTEGER The leading dimension of the array A. LDDA >= max(1,N). |
[out] | info | INTEGER
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