double precision

Functions
magma_int_t	magma_dlobpcg (magma_d_matrix A, magma_d_solver_par *solver_par, magma_d_preconditioner *precond_par, magma_queue_t queue)
	Solves an eigenvalue problem. More...

Detailed Description

Function Documentation

magma_int_t magma_dlobpcg	(	magma_d_matrix	A,
		magma_d_solver_par *	solver_par,
		magma_d_preconditioner *	precond_par,
		magma_queue_t	queue
	)

Solves an eigenvalue problem.

A * X = evalues X

where A is a real sparse matrix stored in the GPU memory. X and B are real vectors stored on the GPU memory.

This is a GPU implementation of the LOBPCG method.

This method allocates all required memory space inside the routine. Also, the memory is not allocated as one big chunk, but seperatly for the different blocks. This allows to use texture also for large matrices.

Parameters

[in]	A	magma_d_matrix input matrix A
[in,out]	solver_par	magma_d_solver_par* solver parameters
[in,out]	precond_par	magma_d_precond_par* preconditioner parameters
[in]	queue	magma_queue_t Queue to execute in.