GEMV - General matrix-Vector multiplication¶
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pyclblas.
clblasCgemv
(order, transA, M, N, alpha, A, offA, lda, x, offx, incx, beta, y, offy, incy, commandQueues, eventWaitList)¶ wraps: clblasCgemv
Matrix-vector product with a general rectangular matrix and float complex elements. Extended version. Matrix-vector products:
- ( y ← α A x + β y )
- ( y ← α ATx + β y )
Parameters: - order (clblasOrder [in]) – Row/column order.
- transA (clblasTranspose [in]) – How matrix A is to be transposed.
- M (int [in]) – Number of rows in matrix A.
- N (int [in]) – Number of columns in matrix A.
- alpha (complex [in]) – The factor of matrix A.
- A (pyopencl.Buffer [in]) – Buffer object storing matrix A.
- offA (int [in]) – Offset of the first element of the matrix A in the buffer object. Counted in elements.
- lda (int [in]) – Leading dimension of matrix A.
- x (pyopencl.Buffer [in]) – Buffer object storing vector x.
- offx (int [in]) – Offset of first element of vector x in buffer object. Counted in elements.
- incx (int [in]) – Increment for the elements of x. It cannot be zero.
- beta (complex [in]) – The factor of the vector y.
- y (pyopencl.Buffer [out]) – Buffer object storing the vector y.
- offy (int [in]) – Offset of first element of vector y in buffer object. Counted in elements.
- incy (int [in]) – Increment for the elements of y. It cannot be zero.
- commandQueues (pyopencl.CommandQueue [in]) – OpenCL command queues. A list, tuple, or single instance of pyopencl.CommandQueue. Must not be None.
- eventWaitList (pyopencl.Event [in]) – Event wait list. A list, tuple, or single instance of pyopencl.Event. May be None.
Returns: A tuple of pyopencl.Event instances, one for each commandQueue supplied.
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pyclblas.
clblasDgemv
(order, transA, M, N, alpha, A, offA, lda, x, offx, incx, beta, y, offy, incy, commandQueues, eventWaitList)¶ wraps: clblasDgemv
Matrix-vector product with a general rectangular matrix and double elements. Extended version. Matrix-vector products:
- ( y ← α A x + β y )
- ( y ← α ATx + β y )
Parameters: - order (clblasOrder [in]) – Row/column order.
- transA (clblasTranspose [in]) – How matrix A is to be transposed.
- M (int [in]) – Number of rows in matrix A.
- N (int [in]) – Number of columns in matrix A.
- alpha (float [in]) – The factor of matrix A.
- A (pyopencl.Buffer [in]) – Buffer object storing matrix A.
- offA (int [in]) – Offset of the first element of A in the buffer object. Counted in elements.
- lda (int [in]) – Leading dimension of matrix A.
- x (pyopencl.Buffer [in]) – Buffer object storing vector x.
- offx (int [in]) – Offset of first element of vector x in buffer object. Counted in elements.
- incx (int [in]) – Increment for the elements of x. It cannot be zero.
- beta (float [in]) – The factor of the vector y.
- y (pyopencl.Buffer [out]) – Buffer object storing the vector y.
- offy (int [in]) – Offset of first element of vector y in buffer object. Counted in elements.
- incy (int [in]) – Increment for the elements of y. It cannot be zero.
- commandQueues (pyopencl.CommandQueue [in]) – OpenCL command queues. A list, tuple, or single instance of pyopencl.CommandQueue. Must not be None.
- eventWaitList (pyopencl.Event [in]) – Event wait list. A list, tuple, or single instance of pyopencl.Event. May be None.
Returns: A tuple of pyopencl.Event instances, one for each commandQueue supplied.
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pyclblas.
clblasSgemv
(order, transA, M, N, alpha, A, offA, lda, x, offx, incx, beta, y, offy, incy, commandQueues, eventWaitList)¶ wraps: clblasSgemv
Matrix-vector product with a general rectangular matrix and float elements. Extended version. Matrix-vector products:
- ( y ← α A x + β y )
- ( y ← α ATx + β y )
Parameters: - order (clblasOrder [in]) – Row/column order.
- transA (clblasTranspose [in]) – How matrix A is to be transposed.
- M (int [in]) – Number of rows in matrix A.
- N (int [in]) – Number of columns in matrix A.
- alpha (float [in]) – The factor of matrix A.
- A (pyopencl.Buffer [in]) – Buffer object storing matrix A.
- offA (int [in]) – Offset of the first element of the matrix A in the buffer object. Counted in elements.
- lda (int [in]) – Leading dimension of matrix A. It cannot be less than N when the order parameter is set to clblasRowMajor, or less than M when the parameter is set to clblasColumnMajor.
- x (pyopencl.Buffer [in]) – Buffer object storing vector x.
- offx (int [in]) – Offset of first element of vector x in buffer object. Counted in elements.
- incx (int [in]) – Increment for the elements of x. It cannot be zero.
- beta (float [in]) – The factor of the vector y.
- y (pyopencl.Buffer [out]) – Buffer object storing the vector y.
- offy (int [in]) – Offset of first element of vector y in buffer object. Counted in elements.
- incy (int [in]) – Increment for the elements of y. It cannot be zero.
- commandQueues (pyopencl.CommandQueue [in]) – OpenCL command queues. A list, tuple, or single instance of pyopencl.CommandQueue. Must not be None.
- eventWaitList (pyopencl.Event [in]) – Event wait list. A list, tuple, or single instance of pyopencl.Event. May be None.
Returns: A tuple of pyopencl.Event instances, one for each commandQueue supplied.
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pyclblas.
clblasZgemv
(order, transA, M, N, alpha, A, offA, lda, x, offx, incx, beta, y, offy, incy, commandQueues, eventWaitList)¶ wraps: clblasZgemv
Matrix-vector product with a general rectangular matrix and double complex elements. Extended version. Matrix-vector products:
- ( y ← α A x + β y )
- ( y ← α ATx + β y )
Parameters: - order (clblasOrder [in]) – Row/column order.
- transA (clblasTranspose [in]) – How matrix A is to be transposed.
- M (int [in]) – Number of rows in matrix A.
- N (int [in]) – Number of columns in matrix A.
- alpha (complex [in]) – The factor of matrix A.
- A (pyopencl.Buffer [in]) – Buffer object storing matrix A.
- offA (int [in]) – Offset of the first element of the matrix A in the buffer object. Counted in elements.
- lda (int [in]) – Leading dimension of matrix A.
- x (pyopencl.Buffer [in]) – Buffer object storing vector x.
- offx (int [in]) – Offset of first element of vector x in buffer object. Counted in elements.
- incx (int [in]) – Increment for the elements of x. It cannot be zero.
- beta (complex [in]) – The factor of the vector y.
- y (pyopencl.Buffer [out]) – Buffer object storing the vector y.
- offy (int [in]) – Offset of first element of vector y in buffer object. Counted in elements.
- incy (int [in]) – Increment for the elements of y. It cannot be zero.
- commandQueues (pyopencl.CommandQueue [in]) – OpenCL command queues. A list, tuple, or single instance of pyopencl.CommandQueue. Must not be None.
- eventWaitList (pyopencl.Event [in]) – Event wait list. A list, tuple, or single instance of pyopencl.Event. May be None.
Returns: A tuple of pyopencl.Event instances, one for each commandQueue supplied.