SBMV  Symmetric banded matrixvector multiplication¶

pyclblas.
clblasDsbmv
(order, uplo, N, K, alpha, A, offa, lda, X, offx, incx, beta, Y, offy, incy, commandQueues, eventWaitList)¶ wraps: clblasDsbmv
Matrixvector product with a symmetric banded matrix and double elements. Matrixvector products:
 ( Y ← α A X + β Y )
Parameters:  order (clblasOrder [in]) – Row/columns order.
 uplo (clblasUplo [in]) – The triangle in matrix being referenced.
 N (int [in]) – Number of rows and columns in banded matrix A.
 K (int [in]) – Number of subdiagonals/superdiagonals in banded matrix A.
 alpha (float [in]) – The factor of matrix A.
 A (pyopencl.Buffer [in]) – Buffer object storing matrix A.
 offa (int [in]) – Offset in number of elements for first element in matrix A.
 lda (int [in]) – Leading dimension of matrix A. It cannot be less than ( K + 1 ).
 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 vector X. It cannot be zero.
 beta (float [in]) – The factor of vector Y.
 Y (pyopencl.Buffer [out]) – Buffer object storing 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 vector 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.

pyclblas.
clblasSsbmv
(order, uplo, N, K, alpha, A, offa, lda, X, offx, incx, beta, Y, offy, incy, commandQueues, eventWaitList)¶ wraps: clblasSsbmv
Matrixvector product with a symmetric banded matrix and float elements. Matrixvector products:
 ( Y ← α A X + β Y )
Parameters:  order (clblasOrder [in]) – Row/columns order.
 uplo (clblasUplo [in]) – The triangle in matrix being referenced.
 N (int [in]) – Number of rows and columns in banded matrix A.
 K (int [in]) – Number of subdiagonals/superdiagonals in banded matrix A.
 alpha (float [in]) – The factor of matrix A.
 A (pyopencl.Buffer [in]) – Buffer object storing matrix A.
 offa (int [in]) – Offset in number of elements for first element in matrix A.
 lda (int [in]) – Leading dimension of matrix A. It cannot be less than ( K + 1 ).
 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 vector X. It cannot be zero.
 beta (float [in]) – The factor of vector Y.
 Y (pyopencl.Buffer [out]) – Buffer object storing 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 vector 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.