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MAGMA
1.5.0
Matrix Algebra for GPU and Multicore Architectures
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Functions | |
magma_int_t | magma_snan_inf (magma_uplo_t uplo, magma_int_t m, magma_int_t n, const float *A, magma_int_t lda, magma_int_t *cnt_nan, magma_int_t *cnt_inf) |
magma_snan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values. More... | |
magma_int_t | magma_snan_inf_gpu (magma_uplo_t uplo, magma_int_t m, magma_int_t n, const float *dA, magma_int_t ldda, magma_int_t *cnt_nan, magma_int_t *cnt_inf) |
magma_snan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values. More... | |
void | magma_sprint (magma_int_t m, magma_int_t n, const float *A, magma_int_t lda) |
magma_sprint prints a matrix that is located on the CPU host. More... | |
void | magma_sprint_gpu (magma_int_t m, magma_int_t n, const float *dA, magma_int_t ldda) |
magma_sprint_gpu prints a matrix that is located on the GPU device. More... | |
void | magmablas_sgeadd (magma_int_t m, magma_int_t n, float alpha, const float *dA, magma_int_t ldda, float *dB, magma_int_t lddb) |
ZGEADD adds two matrices, dB = alpha*dA + dB. More... | |
void | magmablas_sgeadd_batched (magma_int_t m, magma_int_t n, float alpha, const float *const *dAarray, magma_int_t ldda, float **dBarray, magma_int_t lddb, magma_int_t batchCount) |
ZGEADD adds two sets of matrices, dAarray[i] = alpha*dAarray[i] + dBarray[i], for i = 0, ..., batchCount-1. More... | |
void | magmablas_slacpy (magma_uplo_t uplo, magma_int_t m, magma_int_t n, const float *dA, magma_int_t ldda, float *dB, magma_int_t lddb) |
NoteMore... | |
void | magmablas_slacpy_batched (magma_uplo_t uplo, magma_int_t m, magma_int_t n, const float *const *dAarray, magma_int_t ldda, float **dBarray, magma_int_t lddb, magma_int_t batchCount) |
NoteMore... | |
void | magmablas_slag2d (magma_int_t m, magma_int_t n, const float *SA, magma_int_t ldsa, double *A, magma_int_t lda, magma_int_t *info) |
SLAG2D converts a single-real matrix, SA, to a double-real matrix, A. More... | |
float | magmablas_slange (magma_norm_t norm, magma_int_t m, magma_int_t n, const float *A, magma_int_t lda, float *dwork) |
SLANGE returns the value of the one norm, or the Frobenius norm, or the infinity norm, or the element of largest absolute value of a real matrix A. More... | |
float | magmablas_slansy (magma_norm_t norm, magma_uplo_t uplo, magma_int_t n, const float *A, magma_int_t lda, float *dwork) |
SLANSY returns the value of the one norm, or the Frobenius norm, or the infinity norm, or the element of largest absolute value of a real symmetric matrix A. More... | |
void | magmablas_slaset_stream (magma_uplo_t uplo, magma_int_t m, magma_int_t n, float offdiag, float diag, float *dA, magma_int_t ldda, magma_queue_t stream) |
SLASET_STREAM initializes a 2-D array A to DIAG on the diagonal and OFFDIAG on the off-diagonals. More... | |
void | magmablas_slaset (magma_uplo_t uplo, magma_int_t m, magma_int_t n, float offdiag, float diag, float *dA, magma_int_t ldda) |
void | magmablas_slaset_band_stream (magma_uplo_t uplo, magma_int_t m, magma_int_t n, magma_int_t k, float offdiag, float diag, float *dA, magma_int_t ldda, magma_queue_t stream) |
SLASET_BAND_STREAM initializes the main diagonal of dA to DIAG, and the K-1 sub- or super-diagonals to OFFDIAG. More... | |
void | magmablas_slaset_band (magma_uplo_t uplo, magma_int_t m, magma_int_t n, magma_int_t k, float offdiag, float diag, float *dA, magma_int_t ldda) |
void | magmablas_sswapdblk (magma_int_t n, magma_int_t nb, float *dA1, magma_int_t ldda1, magma_int_t inca1, float *dA2, magma_int_t ldda2, magma_int_t inca2) |
This is an auxiliary MAGMA routine. More... | |
void | magmablas_ssymmetrize (magma_uplo_t uplo, magma_int_t m, float *dA, magma_int_t ldda) |
SSYMMETRIZE copies lower triangle to upper triangle, or vice-versa, to make dA a general representation of a symmetric matrix. More... | |
void | magmablas_ssymmetrize_tiles (magma_uplo_t uplo, magma_int_t m, float *dA, magma_int_t ldda, magma_int_t ntile, magma_int_t mstride, magma_int_t nstride) |
SSYMMETRIZE_TILES copies lower triangle to upper triangle, or vice-versa, to make some blocks of dA into general representations of a symmetric block. More... | |
void | magmablas_stranspose_stream (magma_int_t m, magma_int_t n, const float *dA, magma_int_t ldda, float *dAT, magma_int_t lddat, magma_queue_t stream) |
stranspose_stream copies and transposes a matrix dA to matrix dAT. More... | |
void | magmablas_stranspose (magma_int_t m, magma_int_t n, const float *dA, magma_int_t ldda, float *dAT, magma_int_t lddat) |
void | magmablas_stranspose_inplace_stream (magma_int_t n, float *dA, magma_int_t ldda, magma_queue_t stream) |
stranspose_inplace_stream transposes a square N-by-N matrix in-place. More... | |
void | magmablas_stranspose_inplace (magma_int_t n, float *dA, magma_int_t ldda) |
magma_int_t magma_snan_inf | ( | magma_uplo_t | uplo, |
magma_int_t | m, | ||
magma_int_t | n, | ||
const float * | A, | ||
magma_int_t | lda, | ||
magma_int_t * | cnt_nan, | ||
magma_int_t * | cnt_inf | ||
) |
magma_snan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values.
NAN is created by 0/0 and similar. INF is created by x/0 and similar, where x != 0.
[in] | uplo | magma_uplo_t Specifies what part of the matrix A to check.
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[in] | m | INTEGER The number of rows of the matrix A. M >= 0. |
[in] | n | INTEGER The number of columns of the matrix A. N >= 0. |
[in] | A | REAL array, dimension (LDA,N), on the CPU host. The M-by-N matrix to be printed. |
[in] | lda | INTEGER The leading dimension of the array A. LDA >= max(1,M). |
[out] | cnt_nan | INTEGER* If non-NULL, on exit contains the number of NAN values in A. |
[out] | cnt_inf | INTEGER* If non-NULL, on exit contains the number of INF values in A. |
magma_int_t magma_snan_inf_gpu | ( | magma_uplo_t | uplo, |
magma_int_t | m, | ||
magma_int_t | n, | ||
const float * | dA, | ||
magma_int_t | ldda, | ||
magma_int_t * | cnt_nan, | ||
magma_int_t * | cnt_inf | ||
) |
magma_snan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values.
NAN is created by 0/0 and similar. INF is created by x/0 and similar, where x != 0.
[in] | uplo | magma_uplo_t Specifies what part of the matrix A to check.
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[in] | m | INTEGER The number of rows of the matrix A. M >= 0. |
[in] | n | INTEGER The number of columns of the matrix A. N >= 0. |
[in,out] | dA | REAL array, dimension (LDDA,N), on the GPU device. The M-by-N matrix to be printed. |
[in] | ldda | INTEGER The leading dimension of the array A. LDDA >= max(1,M). |
[out] | cnt_nan | INTEGER* If non-NULL, on exit contains the number of NAN values in A. |
[out] | cnt_inf | INTEGER* If non-NULL, on exit contains the number of INF values in A. |
void magma_sprint | ( | magma_int_t | m, |
magma_int_t | n, | ||
const float * | A, | ||
magma_int_t | lda | ||
) |
magma_sprint prints a matrix that is located on the CPU host.
The output is intended to be Matlab compatible, to be useful in debugging.
[in] | m | INTEGER The number of rows of the matrix A. M >= 0. |
[in] | n | INTEGER The number of columns of the matrix A. N >= 0. |
[in] | A | REAL array, dimension (LDA,N), on the CPU host. The M-by-N matrix to be printed. |
[in] | lda | INTEGER The leading dimension of the array A. LDA >= max(1,M). |
void magma_sprint_gpu | ( | magma_int_t | m, |
magma_int_t | n, | ||
const float * | dA, | ||
magma_int_t | ldda | ||
) |
magma_sprint_gpu prints a matrix that is located on the GPU device.
Internally, it allocates CPU memory and copies the matrix to the CPU. The output is intended to be Matlab compatible, to be useful in debugging.
[in] | m | INTEGER The number of rows of the matrix A. M >= 0. |
[in] | n | INTEGER The number of columns of the matrix A. N >= 0. |
[in] | dA | REAL array, dimension (LDDA,N), on the GPU device. The M-by-N matrix to be printed. |
[in] | ldda | INTEGER The leading dimension of the array A. LDDA >= max(1,M). |
void magmablas_sgeadd | ( | magma_int_t | m, |
magma_int_t | n, | ||
float | alpha, | ||
const float * | dA, | ||
magma_int_t | ldda, | ||
float * | dB, | ||
magma_int_t | lddb | ||
) |
ZGEADD adds two matrices, dB = alpha*dA + dB.
[in] | m | INTEGER The number of rows of the matrix dA. M >= 0. |
[in] | n | INTEGER The number of columns of the matrix dA. N >= 0. |
[in] | alpha | REAL The scalar alpha. |
[in] | dA | REAL array, dimension (LDDA,N) The m by n matrix dA. |
[in] | ldda | INTEGER The leading dimension of the array dA. LDDA >= max(1,M). |
[in,out] | dB | REAL array, dimension (LDDB,N) The m by n matrix dB. |
[in] | lddb | INTEGER The leading dimension of the array dB. LDDB >= max(1,M). |
void magmablas_sgeadd_batched | ( | magma_int_t | m, |
magma_int_t | n, | ||
float | alpha, | ||
const float *const * | dAarray, | ||
magma_int_t | ldda, | ||
float ** | dBarray, | ||
magma_int_t | lddb, | ||
magma_int_t | batchCount | ||
) |
ZGEADD adds two sets of matrices, dAarray[i] = alpha*dAarray[i] + dBarray[i], for i = 0, ..., batchCount-1.
[in] | m | INTEGER The number of rows of each matrix dAarray[i]. M >= 0. |
[in] | n | INTEGER The number of columns of each matrix dAarray[i]. N >= 0. |
[in] | alpha | REAL The scalar alpha. |
[in] | dAarray | array on GPU, dimension(batchCount), of pointers to arrays, with each array a REAL array, dimension (LDDA,N) The m by n matrices dAarray[i]. |
[in] | ldda | INTEGER The leading dimension of each array dAarray[i]. LDDA >= max(1,M). |
[in,out] | dBarray | array on GPU, dimension(batchCount), of pointers to arrays, with each array a REAL array, dimension (LDDB,N) The m by n matrices dBarray[i]. |
[in] | lddb | INTEGER The leading dimension of each array dBarray[i]. LDDB >= max(1,M). |
[in] | batchCount | INTEGER The number of matrices to add; length of dAarray and dBarray. batchCount >= 0. |
void magmablas_slacpy | ( | magma_uplo_t | uplo, |
magma_int_t | m, | ||
magma_int_t | n, | ||
const float * | dA, | ||
magma_int_t | ldda, | ||
float * | dB, | ||
magma_int_t | lddb | ||
) |
SLACPY copies all or part of a two-dimensional matrix dA to another matrix dB.
[in] | uplo | magma_uplo_t Specifies the part of the matrix dA to be copied to dB.
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[in] | m | INTEGER The number of rows of the matrix dA. M >= 0. |
[in] | n | INTEGER The number of columns of the matrix dA. N >= 0. |
[in] | dA | REAL array, dimension (LDDA,N) The m by n matrix dA. If UPLO = MagmaUpper, only the upper triangle or trapezoid is accessed; if UPLO = MagmaLower, only the lower triangle or trapezoid is accessed. |
[in] | ldda | INTEGER The leading dimension of the array dA. LDDA >= max(1,M). |
[out] | dB | REAL array, dimension (LDDB,N) The m by n matrix dB. On exit, dB = dA in the locations specified by UPLO. |
[in] | lddb | INTEGER The leading dimension of the array dB. LDDB >= max(1,M). |
void magmablas_slacpy_batched | ( | magma_uplo_t | uplo, |
magma_int_t | m, | ||
magma_int_t | n, | ||
const float *const * | dAarray, | ||
magma_int_t | ldda, | ||
float ** | dBarray, | ||
magma_int_t | lddb, | ||
magma_int_t | batchCount | ||
) |
SLACPY copies all or part of a set of two-dimensional matrices dAarray[i] to another set of matrices dBarray[i], for i = 0, ..., batchCount-1.
[in] | uplo | magma_uplo_t Specifies the part of each matrix dAarray[i] to be copied to dBarray[i].
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[in] | m | INTEGER The number of rows of each matrix dAarray[i]. M >= 0. |
[in] | n | INTEGER The number of columns of each matrix dAarray[i]. N >= 0. |
[in] | dAarray | array on GPU, dimension(batchCount), of pointers to arrays, with each array a REAL array, dimension (LDDA,N) The m by n matrices dAarray[i]. If UPLO = MagmaUpper, only the upper triangle or trapezoid is accessed; if UPLO = MagmaLower, only the lower triangle or trapezoid is accessed. |
[in] | ldda | INTEGER The leading dimension of each array dAarray[i]. LDDA >= max(1,M). |
[out] | dBarray | array on GPU, dimension(batchCount), of pointers to arrays, with each array a REAL array, dimension (LDDB,N) The m by n matrices dBarray[i]. On exit, matrix dBarray[i] = matrix dAarray[i] in the locations specified by UPLO. |
[in] | lddb | INTEGER The leading dimension of each array dBarray[i]. LDDB >= max(1,M). |
[in] | batchCount | INTEGER The number of matrices to add; length of dAarray and dBarray. batchCount >= 0. |
void magmablas_slag2d | ( | magma_int_t | m, |
magma_int_t | n, | ||
const float * | SA, | ||
magma_int_t | ldsa, | ||
double * | A, | ||
magma_int_t | lda, | ||
magma_int_t * | info | ||
) |
SLAG2D converts a single-real matrix, SA, to a double-real matrix, A.
Note that while it is possible to overflow while converting from double to single, it is not possible to overflow when converting from single to double.
[in] | m | INTEGER The number of lines of the matrix A. M >= 0. |
[in] | n | INTEGER The number of columns of the matrix A. N >= 0. |
[in] | SA | REAL array, dimension (LDSA,N) On entry, the M-by-N coefficient matrix SA. |
[in] | ldsa | INTEGER The leading dimension of the array SA. LDSA >= max(1,M). |
[out] | A | DOUBLE PRECISION array, dimension (LDA,N) On exit, the M-by-N coefficient matrix A. |
[in] | lda | INTEGER The leading dimension of the array A. LDA >= max(1,M). |
[out] | info | INTEGER
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float magmablas_slange | ( | magma_norm_t | norm, |
magma_int_t | m, | ||
magma_int_t | n, | ||
const float * | A, | ||
magma_int_t | lda, | ||
float * | dwork | ||
) |
SLANGE returns the value of the one norm, or the Frobenius norm, or the infinity norm, or the element of largest absolute value of a real matrix A.
SLANGE returns the value
SLANGE = ( max(abs(A(i,j))), NORM = 'M' or 'm' ** not yet supported ( ( norm1(A), NORM = '1', 'O' or 'o' ** not yet supported ( ( normI(A), NORM = 'I' or 'i' ( ( normF(A), NORM = 'F', 'f', 'E' or 'e' ** not yet supported
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.
[in] | norm | CHARACTER*1 Specifies the value to be returned in SLANGE as described above. |
[in] | m | INTEGER The number of rows of the matrix A. M >= 0. When M = 0, SLANGE is set to zero. |
[in] | n | INTEGER The number of columns of the matrix A. N >= 0. When N = 0, SLANGE is set to zero. |
[in] | A | REAL array on the GPU, dimension (LDA,N) The m by n matrix A. |
[in] | lda | INTEGER The leading dimension of the array A. LDA >= max(M,1). |
dwork | (workspace) REAL array on the GPU, dimension (MAX(1,LWORK)), where LWORK >= M when NORM = 'I'; otherwise, WORK is not referenced. |
float magmablas_slansy | ( | magma_norm_t | norm, |
magma_uplo_t | uplo, | ||
magma_int_t | n, | ||
const float * | A, | ||
magma_int_t | lda, | ||
float * | dwork | ||
) |
SLANSY returns the value of the one norm, or the Frobenius norm, or the infinity norm, or the element of largest absolute value of a real symmetric matrix A.
SLANSY = ( max(abs(A(i,j))), NORM = 'M' or 'm' ( ( norm1(A), NORM = '1', 'O' or 'o' ** supported only for (PRECISION_s || PRECISION_d || PRECISION_c || CUDA_ARCH >= 200) ( ( normI(A), NORM = 'I' or 'i' ** supported only for (PRECISION_s || PRECISION_d || PRECISION_c || CUDA_ARCH >= 200) ( ( normF(A), NORM = 'F', 'f', 'E' or 'e' ** not yet supported
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.
Returns SLANSY < 0: if SLANSY = -i, the i-th argument had an illegal value.
[in] | norm | CHARACTER*1 Specifies the value to be returned in SLANSY as described above. |
[in] | uplo | magma_uplo_t Specifies whether the upper or lower triangular part of the symmetric matrix A is to be referenced.
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[in] | n | INTEGER The order of the matrix A. N >= 0. When N = 0, SLANSY is set to zero. |
[in] | A | REAL array on the GPU, dimension (LDA,N) 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. Note that the imaginary parts of the diagonal elements need not be set and are assumed to be zero. |
[in] | lda | INTEGER The leading dimension of the array A. LDA >= max(N,1). |
dwork | (workspace) REAL array on the GPU, dimension (MAX(1,LWORK)), where LWORK >= N. NOTE: this is different than LAPACK, where WORK is required only for norm1 and normI. Here max-norm also requires work. |
void magmablas_slaset | ( | magma_uplo_t | uplo, |
magma_int_t | m, | ||
magma_int_t | n, | ||
float | offdiag, | ||
float | diag, | ||
float * | dA, | ||
magma_int_t | ldda | ||
) |
void magmablas_slaset_band | ( | magma_uplo_t | uplo, |
magma_int_t | m, | ||
magma_int_t | n, | ||
magma_int_t | k, | ||
float | offdiag, | ||
float | diag, | ||
float * | dA, | ||
magma_int_t | ldda | ||
) |
void magmablas_slaset_band_stream | ( | magma_uplo_t | uplo, |
magma_int_t | m, | ||
magma_int_t | n, | ||
magma_int_t | k, | ||
float | offdiag, | ||
float | diag, | ||
float * | dA, | ||
magma_int_t | ldda, | ||
magma_queue_t | stream | ||
) |
SLASET_BAND_STREAM initializes the main diagonal of dA to DIAG, and the K-1 sub- or super-diagonals to OFFDIAG.
This is the same as SLASET_BAND, but adds stream argument.
[in] | uplo | magma_uplo_t Specifies the part of the matrix dA to be set.
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[in] | m | INTEGER The number of rows of the matrix dA. M >= 0. |
[in] | n | INTEGER The number of columns of the matrix dA. N >= 0. |
[in] | k | INTEGER The number of diagonals to set, including the main diagonal. K >= 0. Currently, K <= 1024 due to CUDA restrictions (max. number of threads per block). |
[in] | offdiag | REAL Off-diagonal elements in the band are set to OFFDIAG. |
[in] | diag | REAL All the main diagonal elements are set to DIAG. |
[in] | dA | REAL array, dimension (LDDA,N) The M-by-N matrix dA. If UPLO = MagmaUpper, only the upper triangle or trapezoid is accessed; if UPLO = MagmaLower, only the lower triangle or trapezoid is accessed. On exit, A(i,j) = ALPHA, 1 <= i <= m, 1 <= j <= n where i != j, abs(i-j) < k; A(i,i) = BETA , 1 <= i <= min(m,n) |
[in] | ldda | INTEGER The leading dimension of the array dA. LDDA >= max(1,M). |
[in] | stream | magma_queue_t Stream to execute SLASET in. |
void magmablas_slaset_stream | ( | magma_uplo_t | uplo, |
magma_int_t | m, | ||
magma_int_t | n, | ||
float | offdiag, | ||
float | diag, | ||
float * | dA, | ||
magma_int_t | ldda, | ||
magma_queue_t | stream | ||
) |
SLASET_STREAM initializes a 2-D array A to DIAG on the diagonal and OFFDIAG on the off-diagonals.
This is the same as SLASET, but adds stream argument.
[in] | uplo | magma_uplo_t Specifies the part of the matrix dA to be set.
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[in] | m | INTEGER The number of rows of the matrix dA. M >= 0. |
[in] | n | INTEGER The number of columns of the matrix dA. N >= 0. |
[in] | offdiag | REAL The scalar OFFDIAG. (In LAPACK this is called ALPHA.) |
[in] | diag | REAL The scalar DIAG. (In LAPACK this is called BETA.) |
[in] | dA | REAL array, dimension (LDDA,N) The M-by-N matrix dA. If UPLO = MagmaUpper, only the upper triangle or trapezoid is accessed; if UPLO = MagmaLower, only the lower triangle or trapezoid is accessed. On exit, A(i,j) = OFFDIAG, 1 <= i <= m, 1 <= j <= n, i != j; A(i,i) = DIAG, 1 <= i <= min(m,n) |
[in] | ldda | INTEGER The leading dimension of the array dA. LDDA >= max(1,M). |
[in] | stream | magma_queue_t Stream to execute in. |
void magmablas_sswapdblk | ( | magma_int_t | n, |
magma_int_t | nb, | ||
float * | dA1, | ||
magma_int_t | ldda1, | ||
magma_int_t | inca1, | ||
float * | dA2, | ||
magma_int_t | ldda2, | ||
magma_int_t | inca2 | ||
) |
This is an auxiliary MAGMA routine.
It swaps diagonal blocks of size nb x nb between matrices dA1 and dA2 on the GPU.
The number of blocks swapped is (n-1)/nb. For i = 1 .. (n-1)/nb matrices dA1 + i * nb * (ldda1 + inca1) and dA2 + i * nb * (ldda2 + inca2) are swapped.
void magmablas_ssymmetrize | ( | magma_uplo_t | uplo, |
magma_int_t | m, | ||
float * | dA, | ||
magma_int_t | ldda | ||
) |
SSYMMETRIZE copies lower triangle to upper triangle, or vice-versa, to make dA a general representation of a symmetric matrix.
[in] | uplo | magma_uplo_t Specifies the part of the matrix dA that is valid on input.
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[in] | m | INTEGER The number of rows of the matrix dA. M >= 0. |
[in,out] | dA | REAL array, dimension (LDDA,N) The m by m matrix dA. |
[in] | ldda | INTEGER The leading dimension of the array dA. LDDA >= max(1,M). |
void magmablas_ssymmetrize_tiles | ( | magma_uplo_t | uplo, |
magma_int_t | m, | ||
float * | dA, | ||
magma_int_t | ldda, | ||
magma_int_t | ntile, | ||
magma_int_t | mstride, | ||
magma_int_t | nstride | ||
) |
SSYMMETRIZE_TILES copies lower triangle to upper triangle, or vice-versa, to make some blocks of dA into general representations of a symmetric block.
This processes NTILE blocks, typically the diagonal blocks. Each block is offset by mstride rows and nstride columns from the previous block.
[in] | uplo | magma_uplo_t Specifies the part of the matrix dA that is valid on input.
|
[in] | m | INTEGER The number of rows & columns of each square block of dA. M >= 0. |
[in,out] | dA | REAL array, dimension (LDDA,N) The matrix dA. N = m + nstride*(ntile-1). |
[in] | ldda | INTEGER The leading dimension of the array dA. LDDA >= max(1, m + mstride*(ntile-1)). |
[in] | ntile | INTEGER Number of blocks to symmetrize. |
[in] | mstride | INTEGER Row offset from start of one block to start of next block. |
[in] | nstride | INTEGER Column offset from start of one block to start of next block. |
void magmablas_stranspose | ( | magma_int_t | m, |
magma_int_t | n, | ||
const float * | dA, | ||
magma_int_t | ldda, | ||
float * | dAT, | ||
magma_int_t | lddat | ||
) |
void magmablas_stranspose_inplace | ( | magma_int_t | n, |
float * | dA, | ||
magma_int_t | ldda | ||
) |
void magmablas_stranspose_inplace_stream | ( | magma_int_t | n, |
float * | dA, | ||
magma_int_t | ldda, | ||
magma_queue_t | stream | ||
) |
stranspose_inplace_stream transposes a square N-by-N matrix in-place.
Same as stranspose_inplace, but adds stream argument.
[in] | n | INTEGER The number of rows & columns of the matrix dA. N >= 0. |
[in] | dA | REAL array, dimension (LDDA,N) The N-by-N matrix dA. On exit, dA(j,i) = dA_original(i,j), for 0 <= i,j < N. |
[in] | ldda | INTEGER The leading dimension of the array dA. LDDA >= N. |
[in] | stream | magma_queue_t Stream to execute in. |
void magmablas_stranspose_stream | ( | magma_int_t | m, |
magma_int_t | n, | ||
const float * | dA, | ||
magma_int_t | ldda, | ||
float * | dAT, | ||
magma_int_t | lddat, | ||
magma_queue_t | stream | ||
) |
stranspose_stream copies and transposes a matrix dA to matrix dAT.
Same as stranspose, but adds stream argument.
[in] | m | INTEGER The number of rows of the matrix dA. M >= 0. |
[in] | n | INTEGER The number of columns of the matrix dA. N >= 0. |
[in] | dA | REAL array, dimension (LDDA,N) The M-by-N matrix dA. |
[in] | ldda | INTEGER The leading dimension of the array dA. LDDA >= M. |
[in] | dAT | REAL array, dimension (LDDA,N) The N-by-M matrix dAT. |
[in] | lddat | INTEGER The leading dimension of the array dAT. LDDAT >= N. |
[in] | stream | magma_queue_t Stream to execute in. |