hypre 2.32.0
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HYPRE_lobpcg.h File Reference

Functions

LOBPCG Eigensolver
HYPRE_Int HYPRE_LOBPCGCreate (mv_InterfaceInterpreter *interpreter, HYPRE_MatvecFunctions *mvfunctions, HYPRE_Solver *solver)
 LOBPCG constructor.
 
HYPRE_Int HYPRE_LOBPCGDestroy (HYPRE_Solver solver)
 LOBPCG destructor.
 
HYPRE_Int HYPRE_LOBPCGSetPrecond (HYPRE_Solver solver, HYPRE_PtrToSolverFcn precond, HYPRE_PtrToSolverFcn precond_setup, HYPRE_Solver precond_solver)
 (Optional) Set the preconditioner to use.
 
HYPRE_Int HYPRE_LOBPCGGetPrecond (HYPRE_Solver solver, HYPRE_Solver *precond_data_ptr)
 
HYPRE_Int HYPRE_LOBPCGSetup (HYPRE_Solver solver, HYPRE_Matrix A, HYPRE_Vector b, HYPRE_Vector x)
 Set up A and the preconditioner (if there is one).
 
HYPRE_Int HYPRE_LOBPCGSetupB (HYPRE_Solver solver, HYPRE_Matrix B, HYPRE_Vector x)
 (Optional) Set up B.
 
HYPRE_Int HYPRE_LOBPCGSetupT (HYPRE_Solver solver, HYPRE_Matrix T, HYPRE_Vector x)
 (Optional) Set the preconditioning to be applied to Tx = b, not Ax = b.
 
HYPRE_Int HYPRE_LOBPCGSolve (HYPRE_Solver solver, mv_MultiVectorPtr y, mv_MultiVectorPtr x, HYPRE_Real *lambda)
 Solve A x = lambda B x, y'x = 0.
 
HYPRE_Int HYPRE_LOBPCGSetTol (HYPRE_Solver solver, HYPRE_Real tol)
 (Optional) Set the absolute convergence tolerance.
 
HYPRE_Int HYPRE_LOBPCGSetRTol (HYPRE_Solver solver, HYPRE_Real tol)
 (Optional) Set the relative convergence tolerance.
 
HYPRE_Int HYPRE_LOBPCGSetMaxIter (HYPRE_Solver solver, HYPRE_Int max_iter)
 (Optional) Set maximum number of iterations.
 
HYPRE_Int HYPRE_LOBPCGSetPrecondUsageMode (HYPRE_Solver solver, HYPRE_Int mode)
 Define which initial guess for inner PCG iterations to use: mode = 0: use zero initial guess, otherwise use RHS.
 
HYPRE_Int HYPRE_LOBPCGSetPrintLevel (HYPRE_Solver solver, HYPRE_Int level)
 (Optional) Set the amount of printing to do to the screen.
 
utilities_FortranMatrix * HYPRE_LOBPCGResidualNorms (HYPRE_Solver solver)
 
utilities_FortranMatrix * HYPRE_LOBPCGResidualNormsHistory (HYPRE_Solver solver)
 
utilities_FortranMatrix * HYPRE_LOBPCGEigenvaluesHistory (HYPRE_Solver solver)
 
HYPRE_Int HYPRE_LOBPCGIterations (HYPRE_Solver solver)
 
void hypre_LOBPCGMultiOperatorB (void *data, void *x, void *y)
 
void lobpcg_MultiVectorByMultiVector (mv_MultiVectorPtr x, mv_MultiVectorPtr y, utilities_FortranMatrix *xy)