SYR - Symmetric rank 1 update

Functions
clblasStatus	clblasSsyr (clblasOrder order, clblasUplo uplo, size_t N, cl_float alpha, const cl_mem X, size_t offx, int incx, cl_mem A, size_t offa, size_t lda, cl_uint numCommandQueues, cl_command_queue *commandQueues, cl_uint numEventsInWaitList, const cl_event *eventWaitList, cl_event *events)
	Symmetric rank 1 operation with a general triangular matrix and float elements. More...
clblasStatus	clblasDsyr (clblasOrder order, clblasUplo uplo, size_t N, cl_double alpha, const cl_mem X, size_t offx, int incx, cl_mem A, size_t offa, size_t lda, cl_uint numCommandQueues, cl_command_queue *commandQueues, cl_uint numEventsInWaitList, const cl_event *eventWaitList, cl_event *events)
	Symmetric rank 1 operation with a general triangular matrix and double elements. More...

Detailed Description

The Level 2 Basic Linear Algebra Subprograms are functions that perform symmetric rank 1 update operations.

Function Documentation

clblasStatus clblasDsyr	(	clblasOrder	order,
		clblasUplo	uplo,
		size_t	N,
		cl_double	alpha,
		const cl_mem	X,
		size_t	offx,
		int	incx,
		cl_mem	A,
		size_t	offa,
		size_t	lda,
		cl_uint	numCommandQueues,
		cl_command_queue *	commandQueues,
		cl_uint	numEventsInWaitList,
		const cl_event *	eventWaitList,
		cl_event *	events
	)

Symmetric rank 1 operation with a general triangular matrix and double elements.

Symmetric rank 1 operation:

• \( A \leftarrow \alpha x x^T + A \)

Parameters

[in]	order	Row/column order.
[in]	uplo	The triangle in matrix being referenced.
[in]	N	Number of columns in matrix A.
[in]	alpha	The factor of matrix A.
[in]	X	Buffer object storing vector X.
[in]	offx	Offset of first element of vector X in buffer object.
[in]	incx	Increment for the elements of X. Must not be zero.
[out]	A	Buffer object storing matrix A.
[in]	offa	Offset of first element of matrix A in buffer object.
[in]	lda	Leading dimension of matrix A. It cannot be less than N.
[in]	numCommandQueues	Number of OpenCL command queues in which the task is to be performed.
[in]	commandQueues	OpenCL command queues.
[in]	numEventsInWaitList	Number of events in the event wait list.
[in]	eventWaitList	Event wait list.
[in]	events	Event objects per each command queue that identify a particular kernel execution instance.

Returns

• clblasSuccess on success;
• clblasInvalidDevice if a target device does not support floating point arithmetic with double precision;
• the same error codes as the clblasSsyr() function otherwise.

clblasStatus clblasSsyr	(	clblasOrder	order,
		clblasUplo	uplo,
		size_t	N,
		cl_float	alpha,
		const cl_mem	X,
		size_t	offx,
		int	incx,
		cl_mem	A,
		size_t	offa,
		size_t	lda,
		cl_uint	numCommandQueues,
		cl_command_queue *	commandQueues,
		cl_uint	numEventsInWaitList,
		const cl_event *	eventWaitList,
		cl_event *	events
	)

Symmetric rank 1 operation with a general triangular matrix and float elements.

Symmetric rank 1 operation:

• \( A \leftarrow \alpha x x^T + A \)

Parameters

[in]	order	Row/column order.
[in]	uplo	The triangle in matrix being referenced.
[in]	N	Number of columns in matrix A.
[in]	alpha	The factor of matrix A.
[in]	X	Buffer object storing vector X.
[in]	offx	Offset of first element of vector X in buffer object.
[in]	incx	Increment for the elements of X. Must not be zero.
[out]	A	Buffer object storing matrix A.
[in]	offa	Offset of first element of matrix A in buffer object.
[in]	lda	Leading dimension of matrix A. It cannot be less than N.
[in]	numCommandQueues	Number of OpenCL command queues in which the task is to be performed.
[in]	commandQueues	OpenCL command queues.
[in]	numEventsInWaitList	Number of events in the event wait list.
[in]	eventWaitList	Event wait list.
[in]	events	Event objects per each command queue that identify a particular kernel execution instance.

Returns

• clblasSuccess on success;
• clblasNotInitialized if clblasSetup() was not called;
• clblasInvalidValue if invalid parameters are passed:
  • N is zero, or
  • either incx is zero, or
  • the leading dimension is invalid;
• clblasInvalidMemObject if either A, X object is Invalid, or an image object rather than the buffer one;
• clblasOutOfHostMemory if the library can't allocate memory for internal structures;
• clblasInvalidCommandQueue if the passed command queue is invalid;
• clblasInvalidContext if a context a passed command queue belongs to was released;
• clblasInvalidOperation if kernel compilation relating to a previous call has not completed for any of the target devices;
• clblasCompilerNotAvailable if a compiler is not available;
• clblasBuildProgramFailure if there is a failure to build a program executable.