GBMV - General banded matrix-vector multiplication¶
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pyclblas.
clblasCgbmv
(order, trans, M, N, KL, KU, alpha, A, offa, lda, X, offx, incx, beta, Y, offy, incy, commandQueues, eventWaitList)¶ wraps: clblasCgbmv
Matrix-vector product with a general rectangular banded matrix and float-complex elements. Matrix-vector products:
- ( Y ← α A X + β Y )
- ( Y ← α ATX + β Y )
Parameters: - order (clblasOrder [in]) – Row/column order.
- trans (clblasTranspose [in]) – How matrix A is to be transposed.
- M (int [in]) – Number of rows in banded matrix A.
- N (int [in]) – Number of columns in banded matrix A.
- KL (int [in]) – Number of sub-diagonals in banded matrix A.
- KU (int [in]) – Number of super-diagonals in banded matrix A.
- alpha (complex [in]) – The factor of banded matrix A.
- A (pyopencl.Buffer [in]) – Buffer object storing banded matrix A.
- offa (int [in]) – Offset in number of elements for the first element in banded matrix A.
- lda (int [in]) – Leading dimension of banded matrix A. It cannot be less than ( KL + KU + 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 X. Must not 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. Must not 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.
clblasDgbmv
(order, trans, M, N, KL, KU, alpha, A, offa, lda, X, offx, incx, beta, Y, offy, incy, commandQueues, eventWaitList)¶ wraps: clblasDgbmv
Matrix-vector product with a general rectangular banded matrix and double elements. Matrix-vector products:
- ( Y ← α A X + β Y )
- ( Y ← α ATX + β Y )
Parameters: - order (clblasOrder [in]) – Row/column order.
- trans (clblasTranspose [in]) – How matrix A is to be transposed.
- M (int [in]) – Number of rows in banded matrix A.
- N (int [in]) – Number of columns in banded matrix A.
- KL (int [in]) – Number of sub-diagonals in banded matrix A.
- KU (int [in]) – Number of super-diagonals in banded matrix A.
- alpha (float [in]) – The factor of banded matrix A.
- A (pyopencl.Buffer [in]) – Buffer object storing banded matrix A.
- offa (int [in]) – Offset in number of elements for the first element in banded matrix A.
- lda (int [in]) – Leading dimension of banded matrix A. It cannot be less than ( KL + KU + 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 X. Must not 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. Must not 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.
clblasSgbmv
(order, trans, M, N, KL, KU, alpha, A, offa, lda, X, offx, incx, beta, Y, offy, incy, commandQueues, eventWaitList)¶ wraps: clblasSgbmv
Matrix-vector product with a general rectangular banded matrix and float elements. Matrix-vector products:
- ( Y ← α A X + β Y )
- ( Y ← α ATX + β Y )
Parameters: - order (clblasOrder [in]) – Row/column order.
- trans (clblasTranspose [in]) – How matrix A is to be transposed.
- M (int [in]) – Number of rows in banded matrix A.
- N (int [in]) – Number of columns in banded matrix A.
- KL (int [in]) – Number of sub-diagonals in banded matrix A.
- KU (int [in]) – Number of super-diagonals in banded matrix A.
- alpha (float [in]) – The factor of banded matrix A.
- A (pyopencl.Buffer [in]) – Buffer object storing banded matrix A.
- offa (int [in]) – Offset in number of elements for the first element in banded matrix A.
- lda (int [in]) – Leading dimension of banded matrix A. It cannot be less than ( KL + KU + 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 X. Must not 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. Must not 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.
clblasZgbmv
(order, trans, M, N, KL, KU, alpha, A, offa, lda, X, offx, incx, beta, Y, offy, incy, commandQueues, eventWaitList)¶ wraps: clblasZgbmv
Matrix-vector product with a general rectangular banded matrix and double-complex elements. Matrix-vector products:
- ( Y ← α A X + β Y )
- ( Y ← α ATX + β Y )
Parameters: - order (clblasOrder [in]) – Row/column order.
- trans (clblasTranspose [in]) – How matrix A is to be transposed.
- M (int [in]) – Number of rows in banded matrix A.
- N (int [in]) – Number of columns in banded matrix A.
- KL (int [in]) – Number of sub-diagonals in banded matrix A.
- KU (int [in]) – Number of super-diagonals in banded matrix A.
- alpha (complex [in]) – The factor of banded matrix A.
- A (pyopencl.Buffer [in]) – Buffer object storing banded matrix A.
- offa (int [in]) – Offset in number of elements for the first element in banded matrix A.
- lda (int [in]) – Leading dimension of banded matrix A. It cannot be less than ( KL + KU + 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 X. Must not 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. Must not 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.