/*
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SLEPc - Scalable Library for Eigenvalue Problem Computations
Copyright (c) 2002-2011, Universitat Politecnica de Valencia, Spain
This file is part of SLEPc.
SLEPc is free software: you can redistribute it and/or modify it under the
terms of version 3 of the GNU Lesser General Public License as published by
the Free Software Foundation.
SLEPc is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
more details.
You should have received a copy of the GNU Lesser General Public License
along with SLEPc. If not, see <http://www.gnu.org/licenses/>.
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*/
#include "davidson.h"
#define DVD_CHECKSUM(b) \
( (b)->max_size_V + (b)->max_size_auxV + (b)->max_size_auxS + \
(b)->own_vecs + (b)->own_scalars + (b)->max_size_oldX )
#undef __FUNCT__
#define __FUNCT__ "dvd_schm_basic_preconf"
PetscErrorCode dvd_schm_basic_preconf(dvdDashboard *d, dvdBlackboard *b,
PetscInt mpd, PetscInt min_size_V, PetscInt bs,
PetscInt ini_size_V, PetscInt size_initV, PetscInt plusk,
HarmType_t harmMode, KSP ksp, InitType_t init, PetscBool allResiduals,
orthoV_type_t orth, PetscInt cX_proj, PetscInt cX_impr)
{
PetscErrorCode ierr;
PetscInt check_sum0, check_sum1;
PetscFunctionBegin;
ierr = PetscMemzero(b, sizeof(dvdBlackboard)); CHKERRQ(ierr);
b->state = DVD_STATE_PRECONF;
for(check_sum0=-1,check_sum1=DVD_CHECKSUM(b); check_sum0 != check_sum1;
check_sum0 = check_sum1, check_sum1 = DVD_CHECKSUM(b)) {
b->own_vecs = b->own_scalars = 0;
/* Setup basic management of V */
ierr = dvd_managementV_basic(d, b, bs, mpd, min_size_V, plusk,
harmMode==DVD_HARM_NONE?PETSC_FALSE:PETSC_TRUE,
allResiduals);
CHKERRQ(ierr);
/* Setup the initial subspace for V */
ierr = dvd_initV(d, b, ini_size_V, size_initV,
init==DVD_INITV_KRYLOV?PETSC_TRUE:PETSC_FALSE); CHKERRQ(ierr);
/* Setup the convergence in order to use the SLEPc convergence test */
ierr = dvd_testconv_slepc(d, b);CHKERRQ(ierr);
/* Setup Raileigh-Ritz for selecting the best eigenpairs in V */
ierr = dvd_calcpairs_qz(d, b, orth, PETSC_NULL, cX_proj,
harmMode==DVD_HARM_NONE?PETSC_FALSE:PETSC_TRUE); CHKERRQ(ierr);
if (harmMode != DVD_HARM_NONE) {
ierr = dvd_harm_conf(d, b, harmMode, PETSC_FALSE, 0.0); CHKERRQ(ierr);
}
/* Setup the method for improving the eigenvectors */
ierr = dvd_improvex_jd(d, b, ksp, bs, cX_impr, PETSC_FALSE); CHKERRQ(ierr);
ierr = dvd_improvex_jd_proj_uv(d, b, DVD_PROJ_KZX); CHKERRQ(ierr);
ierr = dvd_improvex_jd_lit_const(d, b, 0, 0.0, 0.0); CHKERRQ(ierr);
}
PetscFunctionReturn(0);
}
#undef __FUNCT__
#define __FUNCT__ "dvd_schm_basic_conf"
PetscErrorCode dvd_schm_basic_conf(dvdDashboard *d, dvdBlackboard *b,
PetscInt mpd, PetscInt min_size_V, PetscInt bs,
PetscInt ini_size_V, PetscInt size_initV, PetscInt plusk,
IP ip, HarmType_t harmMode, PetscBool fixedTarget, PetscScalar t, KSP ksp,
PetscReal fix, InitType_t init, PetscBool allResiduals, orthoV_type_t orth,
PetscInt cX_proj, PetscInt cX_impr, PetscBool dynamic)
{
PetscInt check_sum0, check_sum1, maxits;
Vec *fv;
PetscScalar *fs;
PetscReal tol;
PetscErrorCode ierr;
PetscFunctionBegin;
b->state = DVD_STATE_CONF;
check_sum0 = DVD_CHECKSUM(b);
b->own_vecs = 0; b->own_scalars = 0;
fv = b->free_vecs; fs = b->free_scalars;
/* Setup basic management of V */
ierr = dvd_managementV_basic(d, b, bs, mpd, min_size_V, plusk,
harmMode==DVD_HARM_NONE?PETSC_FALSE:PETSC_TRUE,
allResiduals);
CHKERRQ(ierr);
/* Setup the initial subspace for V */
ierr = dvd_initV(d, b, ini_size_V, size_initV,
init==DVD_INITV_KRYLOV?PETSC_TRUE:PETSC_FALSE); CHKERRQ(ierr);
/* Setup the convergence in order to use the SLEPc convergence test */
ierr = dvd_testconv_slepc(d, b); CHKERRQ(ierr);
/* Setup Raileigh-Ritz for selecting the best eigenpairs in V */
ierr = dvd_calcpairs_qz(d, b, orth, ip, cX_proj,
harmMode==DVD_HARM_NONE?PETSC_FALSE:PETSC_TRUE); CHKERRQ(ierr);
if (harmMode != DVD_HARM_NONE) {
ierr = dvd_harm_conf(d, b, harmMode, fixedTarget, t); CHKERRQ(ierr);
}
/* Setup the method for improving the eigenvectors */
ierr = dvd_improvex_jd(d, b, ksp, bs, cX_impr, dynamic); CHKERRQ(ierr);
ierr = dvd_improvex_jd_proj_uv(d, b, DVD_PROJ_KZX);
CHKERRQ(ierr);
ierr = KSPGetTolerances(ksp, &tol, PETSC_NULL, PETSC_NULL, &maxits);
CHKERRQ(ierr);
ierr = dvd_improvex_jd_lit_const(d, b, maxits, tol, fix); CHKERRQ(ierr);
check_sum1 = DVD_CHECKSUM(b);
if ((check_sum0 != check_sum1) ||
(b->free_vecs - fv > b->own_vecs) ||
(b->free_scalars - fs > b->own_scalars))
SETERRQ(PETSC_COMM_SELF,1, "Something awful happened");
PetscFunctionReturn(0);
}