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jroman |
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/*
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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SLEPc - Scalable Library for Eigenvalue Problem Computations
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eromero |
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Copyright (c) 2002-2011, Universitat Politecnica de Valencia, Spain
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eromero |
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jroman |
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This file is part of SLEPc.
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SLEPc is free software: you can redistribute it and/or modify it under the
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terms of version 3 of the GNU Lesser General Public License as published by
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the Free Software Foundation.
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SLEPc is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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more details.
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You should have received a copy of the GNU Lesser General Public License
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along with SLEPc. If not, see <http://www.gnu.org/licenses/>.
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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*/
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jroman |
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#include <petsc-private/vecimpl.h> /*I "petsvec.h" I*/
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eromero |
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#ifdef __WITH_MPI__
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#define __SUF__(A) A##_MPI
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#else
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#define __SUF__(A) A##_Seq
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#endif
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eromero |
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#define __QUOTEME_(x) #x
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#define __QUOTEME(x) __QUOTEME_(x)
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eromero |
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#define __SUF_C__(A) __QUOTEME(__SUF__(A))
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#undef __FUNCT__
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#define __FUNCT__ __SUF_C__(VecDot_Comp)
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jroman |
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PetscErrorCode __SUF__(VecDot_Comp)(Vec a,Vec b,PetscScalar *z)
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eromero |
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{
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jroman |
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PetscScalar sum = 0.0,work;
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eromero |
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PetscInt i;
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PetscErrorCode ierr;
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jroman |
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Vec_Comp *as = (Vec_Comp*)a->data,*bs = (Vec_Comp*)b->data;
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eromero |
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PetscFunctionBegin;
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eromero |
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PetscValidVecComp(a);
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PetscValidVecComp(b);
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eromero |
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if (as->x[0]->ops->dot_local) {
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jroman |
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for (i=0,sum=0.0;i<as->n->n;i++) {
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ierr = as->x[i]->ops->dot_local(as->x[i],bs->x[i],&work);CHKERRQ(ierr);
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sum += work;
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eromero |
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}
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#ifdef __WITH_MPI__
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work = sum;
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jroman |
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ierr = MPI_Allreduce(&work,&sum,1,MPIU_SCALAR,MPIU_SUM,((PetscObject)a)->comm);CHKERRQ(ierr);
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eromero |
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#endif
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} else {
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jroman |
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for(i=0,sum=0.0; i<as->n->n; i++) {
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ierr = VecDot(as->x[i],bs->x[i],&work);CHKERRQ(ierr);
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sum += work;
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eromero |
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}
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}
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*z = sum;
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PetscFunctionReturn(0);
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}
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#undef __FUNCT__
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#define __FUNCT__ __SUF_C__(VecMDot_Comp)
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jroman |
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PetscErrorCode __SUF__(VecMDot_Comp)(Vec a,PetscInt n,const Vec b[],PetscScalar *z)
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eromero |
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{
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jroman |
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PetscScalar *work,*work0,*r;
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PetscErrorCode ierr;
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Vec_Comp *as = (Vec_Comp*)a->data;
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Vec *bx;
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PetscInt i,j;
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eromero |
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PetscFunctionBegin;
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eromero |
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PetscValidVecComp(a);
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jroman |
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for (i=0;i<n;i++) PetscValidVecComp(b[i]);
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eromero |
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jroman |
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if (as->n->n == 0) {
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eromero |
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*z = 0;
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PetscFunctionReturn(0);
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}
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ierr = PetscMalloc(sizeof(PetscScalar)*n,&work0);CHKERRQ(ierr);
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ierr = PetscMalloc(sizeof(Vec)*n,&bx);CHKERRQ(ierr);
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eromero |
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#ifdef __WITH_MPI__
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if (as->x[0]->ops->mdot_local) {
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r = work0; work = z;
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} else
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#endif
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{
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r = z; work = work0;
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}
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/* z[i] <- a.x' * b[i].x */
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jroman |
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for (i=0;i<n;i++) bx[i] = ((Vec_Comp*)b[i]->data)->x[0];
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eromero |
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if (as->x[0]->ops->mdot_local) {
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jroman |
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ierr = as->x[0]->ops->mdot_local(as->x[0],n,bx,r);CHKERRQ(ierr);
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eromero |
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} else {
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jroman |
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ierr = VecMDot(as->x[0],n,bx,r);CHKERRQ(ierr);
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eromero |
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}
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jroman |
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for (j=0;j<as->n->n;j++) {
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for (i=0;i<n;i++) bx[i] = ((Vec_Comp*)b[i]->data)->x[j];
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eromero |
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if (as->x[0]->ops->mdot_local) {
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jroman |
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ierr = as->x[j]->ops->mdot_local(as->x[j],n,bx,work);CHKERRQ(ierr);
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eromero |
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} else {
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jroman |
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ierr = VecMDot(as->x[j],n,bx,work);CHKERRQ(ierr);
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eromero |
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}
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jroman |
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for (i=0;i<n;i++) r[i] += work[i];
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eromero |
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}
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/* If def(__WITH_MPI__) and exists mdot_local */
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#ifdef __WITH_MPI__
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if (as->x[0]->ops->mdot_local) {
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/* z[i] <- Allreduce(work[i]) */
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jroman |
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ierr = MPI_Allreduce(r,z,n,MPIU_SCALAR,MPIU_SUM,((PetscObject)a)->comm);CHKERRQ(ierr);
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eromero |
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}
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#endif
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jroman |
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ierr = PetscFree(work0);CHKERRQ(ierr);
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ierr = PetscFree(bx);CHKERRQ(ierr);
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eromero |
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PetscFunctionReturn(0);
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}
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eromero |
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#undef __FUNCT__
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#define __FUNCT__ __SUF_C__(VecTDot_Comp)
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PetscErrorCode __SUF__(VecTDot_Comp)(Vec a,Vec b,PetscScalar *z)
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{
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PetscScalar sum = 0.0,work;
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PetscInt i;
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PetscErrorCode ierr;
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Vec_Comp *as = (Vec_Comp*)a->data,*bs = (Vec_Comp*)b->data;
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PetscFunctionBegin;
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PetscValidVecComp(a);
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PetscValidVecComp(b);
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if (as->x[0]->ops->tdot_local) {
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for (i=0,sum=0.0;i<as->n->n;i++) {
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ierr = as->x[i]->ops->tdot_local(as->x[i],bs->x[i],&work);CHKERRQ(ierr);
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sum += work;
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}
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#ifdef __WITH_MPI__
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work = sum;
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ierr = MPI_Allreduce(&work,&sum,1,MPIU_SCALAR,MPIU_SUM,((PetscObject)a)->comm);CHKERRQ(ierr);
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#endif
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} else {
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for(i=0,sum=0.0; i<as->n->n; i++) {
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ierr = VecTDot(as->x[i],bs->x[i],&work);CHKERRQ(ierr);
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sum += work;
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}
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}
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*z = sum;
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PetscFunctionReturn(0);
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}
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#undef __FUNCT__
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#define __FUNCT__ __SUF_C__(VecMTDot_Comp)
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PetscErrorCode __SUF__(VecMTDot_Comp)(Vec a,PetscInt n,const Vec b[],PetscScalar *z)
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{
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PetscScalar *work,*work0,*r;
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PetscErrorCode ierr;
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Vec_Comp *as = (Vec_Comp*)a->data;
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Vec *bx;
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PetscInt i,j;
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PetscFunctionBegin;
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PetscValidVecComp(a);
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for (i=0;i<n;i++) PetscValidVecComp(b[i]);
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if (as->n->n == 0) {
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*z = 0;
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PetscFunctionReturn(0);
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}
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ierr = PetscMalloc(sizeof(PetscScalar)*n,&work0);CHKERRQ(ierr);
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ierr = PetscMalloc(sizeof(Vec)*n,&bx);CHKERRQ(ierr);
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#ifdef __WITH_MPI__
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if (as->x[0]->ops->mtdot_local) {
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r = work0; work = z;
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} else
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#endif
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{
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r = z; work = work0;
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}
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/* z[i] <- a.x' * b[i].x */
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for (i=0;i<n;i++) bx[i] = ((Vec_Comp*)b[i]->data)->x[0];
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if (as->x[0]->ops->mtdot_local) {
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ierr = as->x[0]->ops->mtdot_local(as->x[0],n,bx,r);CHKERRQ(ierr);
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} else {
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ierr = VecMTDot(as->x[0],n,bx,r);CHKERRQ(ierr);
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}
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for (j=0;j<as->n->n;j++) {
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for (i=0;i<n;i++) bx[i] = ((Vec_Comp*)b[i]->data)->x[j];
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if (as->x[0]->ops->mtdot_local) {
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ierr = as->x[j]->ops->mtdot_local(as->x[j],n,bx,work);CHKERRQ(ierr);
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} else {
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ierr = VecMTDot(as->x[j],n,bx,work);CHKERRQ(ierr);
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}
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for (i=0;i<n;i++) r[i] += work[i];
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}
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/* If def(__WITH_MPI__) and exists mtdot_local */
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#ifdef __WITH_MPI__
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if (as->x[0]->ops->mtdot_local) {
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/* z[i] <- Allreduce(work[i]) */
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ierr = MPI_Allreduce(r,z,n,MPIU_SCALAR,MPIU_SUM,((PetscObject)a)->comm);CHKERRQ(ierr);
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}
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#endif
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ierr = PetscFree(work0);CHKERRQ(ierr);
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ierr = PetscFree(bx);CHKERRQ(ierr);
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PetscFunctionReturn(0);
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}
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eromero |
220 |
#ifndef __VEC_NORM2_FUNCS_
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#define __VEC_NORM2_FUNCS_
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PETSC_STATIC_INLINE void SumNorm2(PetscReal *ssq0,PetscReal *scale0,PetscReal *ssq1,PetscReal *scale1)
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{
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PetscReal q;
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if (*scale0 > *scale1) { q = *scale1/(*scale0); *ssq1 = *ssq0 + q*q*(*ssq1); *scale1 = *scale0; }
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else { q = *scale0/(*scale1); *ssq1+= q*q*(*ssq0); }
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}
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eromero |
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eromero |
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PETSC_STATIC_INLINE PetscReal GetNorm2(PetscReal ssq,PetscReal scale)
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{
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return scale*PetscSqrtReal(ssq);
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}
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PETSC_STATIC_INLINE void AddNorm2(PetscReal *ssq,PetscReal *scale,PetscReal x)
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{
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if (x != 0.0) {
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PetscReal absx = PetscAbs(x), q;
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if (*scale < absx) { q = *scale/absx; *ssq = 1.0 + *ssq*q*q; *scale = absx; }
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else { q = absx/(*scale); *ssq+= q*q; }
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eromero |
240 |
}
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eromero |
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}
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eromero |
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eromero |
243 |
MPI_Datatype MPIU_NORM2=0, MPIU_NORM1_AND_2=0;
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MPI_Op MPIU_NORM2_SUM=0;
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245 |
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EXTERN_C_BEGIN
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247 |
#undef __FUNCT__
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248 |
#define __FUNCT__ "SlepcSumNorm2_Local"
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249 |
void SlepcSumNorm2_Local(void *in,void *out,PetscMPIInt *cnt,MPI_Datatype *datatype)
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{
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PetscInt i,count = *cnt;
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252 |
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PetscFunctionBegin;
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if (*datatype == MPIU_NORM2) {
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255 |
PetscReal *xin = (PetscReal*)in,*xout = (PetscReal*)out;
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256 |
for (i=0; i<count; i++) {
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SumNorm2(&xin[i*2],&xin[i*2+1],&xout[i*2],&xout[i*2+1]);
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}
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259 |
} else if (*datatype == MPIU_NORM1_AND_2) {
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260 |
PetscReal *xin = (PetscReal*)in,*xout = (PetscReal*)out;
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261 |
for (i=0; i<count; i++) {
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xout[i*3]+= xin[i*3];
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SumNorm2(&xin[i*3+1],&xin[i*3+2],&xout[i*3+1],&xout[i*3+2]);
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}
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265 |
} else {
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266 |
(*PetscErrorPrintf)("Can only handle MPIU_NORM* data types");
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267 |
MPI_Abort(MPI_COMM_WORLD,1);
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| 1960 |
eromero |
268 |
}
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eromero |
269 |
PetscFunctionReturnVoid();
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270 |
}
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| 1960 |
eromero |
271 |
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272 |
#undef __FUNCT__
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| 2545 |
eromero |
273 |
#define __FUNCT__ "VecNormCompEnd"
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eromero |
274 |
PetscErrorCode VecNormCompEnd(void)
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| 2545 |
eromero |
275 |
{
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276 |
PetscErrorCode ierr;
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277 |
PetscFunctionBegin;
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278 |
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279 |
ierr = MPI_Type_free(&MPIU_NORM2);CHKERRQ(ierr);
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280 |
ierr = MPI_Type_free(&MPIU_NORM1_AND_2);CHKERRQ(ierr);
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281 |
ierr = MPI_Op_free(&MPIU_NORM2_SUM);CHKERRQ(ierr);
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282 |
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283 |
PetscFunctionReturn(0);
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284 |
}
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285 |
EXTERN_C_END
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286 |
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287 |
#undef __FUNCT__
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288 |
#define __FUNCT__ "VecNormCompInit"
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289 |
PetscErrorCode VecNormCompInit()
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290 |
{
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291 |
PetscErrorCode ierr;
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292 |
PetscFunctionBegin;
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293 |
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294 |
ierr = MPI_Type_contiguous(sizeof(PetscReal)*2,MPI_BYTE,&MPIU_NORM2);CHKERRQ(ierr);
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295 |
ierr = MPI_Type_commit(&MPIU_NORM2);
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296 |
ierr = MPI_Type_contiguous(sizeof(PetscReal)*3,MPI_BYTE,&MPIU_NORM1_AND_2);CHKERRQ(ierr);
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297 |
ierr = MPI_Type_commit(&MPIU_NORM1_AND_2);
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298 |
ierr = MPI_Op_create(SlepcSumNorm2_Local,1,&MPIU_NORM2_SUM);CHKERRQ(ierr);
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299 |
ierr = PetscRegisterFinalize(VecNormCompEnd);
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300 |
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301 |
PetscFunctionReturn(0);
|
|
|
302 |
}
|
|
|
303 |
#endif
|
|
|
304 |
|
|
|
305 |
#undef __FUNCT__
|
| 1960 |
eromero |
306 |
#define __FUNCT__ __SUF_C__(VecNorm_Comp)
|
| 2336 |
jroman |
307 |
PetscErrorCode __SUF__(VecNorm_Comp)(Vec a,NormType t,PetscReal *norm)
|
| 1960 |
eromero |
308 |
{
|
| 2545 |
eromero |
309 |
PetscReal work[3],s=0.0;
|
| 2336 |
jroman |
310 |
PetscErrorCode ierr;
|
|
|
311 |
Vec_Comp *as = (Vec_Comp*)a->data;
|
|
|
312 |
PetscInt i;
|
| 1960 |
eromero |
313 |
|
|
|
314 |
PetscFunctionBegin;
|
| 1965 |
eromero |
315 |
PetscValidVecComp(a);
|
| 2545 |
eromero |
316 |
/* Initialize norm */
|
|
|
317 |
switch(t) {
|
|
|
318 |
case NORM_1: case NORM_INFINITY: *norm = 0.0; break;
|
|
|
319 |
case NORM_2: case NORM_FROBENIUS: *norm = 1.0; s = 0.0; break;
|
|
|
320 |
case NORM_1_AND_2: norm[0] = 0.0; norm[1] = 1.0; s = 0.0; break;
|
|
|
321 |
}
|
|
|
322 |
for (i=0;i<as->n->n;i++) {
|
|
|
323 |
if (as->x[0]->ops->norm_local) {
|
| 2336 |
jroman |
324 |
ierr = as->x[0]->ops->norm_local(as->x[i],t,work);CHKERRQ(ierr);
|
| 2545 |
eromero |
325 |
} else {
|
| 2336 |
jroman |
326 |
ierr = VecNorm(as->x[i],t,work);CHKERRQ(ierr);
|
| 1960 |
eromero |
327 |
}
|
| 2545 |
eromero |
328 |
/* norm+= work */
|
|
|
329 |
switch(t) {
|
|
|
330 |
case NORM_1: *norm+= *work; break;
|
|
|
331 |
case NORM_2: case NORM_FROBENIUS: AddNorm2(norm,&s,*work); break;
|
|
|
332 |
case NORM_1_AND_2: norm[0]+= work[0]; AddNorm2(&norm[1],&s,work[1]); break;
|
|
|
333 |
case NORM_INFINITY: *norm = PetscMax(*norm,*work); break;
|
|
|
334 |
}
|
| 1960 |
eromero |
335 |
}
|
|
|
336 |
|
|
|
337 |
/* If def(__WITH_MPI__) and exists norm_local */
|
|
|
338 |
#ifdef __WITH_MPI__
|
|
|
339 |
if (as->x[0]->ops->norm_local) {
|
| 2545 |
eromero |
340 |
PetscReal work0[3];
|
| 1960 |
eromero |
341 |
/* norm <- Allreduce(work) */
|
| 2545 |
eromero |
342 |
switch(t) {
|
|
|
343 |
case NORM_1:
|
|
|
344 |
work[0] = *norm;
|
|
|
345 |
ierr = MPI_Allreduce(work,norm,1,MPIU_REAL,MPIU_SUM,((PetscObject)a)->comm);CHKERRQ(ierr);
|
|
|
346 |
break;
|
|
|
347 |
case NORM_2: case NORM_FROBENIUS:
|
|
|
348 |
work[0] = *norm; work[1] = s;
|
|
|
349 |
ierr = MPI_Allreduce(work,work0,1,MPIU_NORM2,MPIU_NORM2_SUM,((PetscObject)a)->comm);CHKERRQ(ierr);
|
|
|
350 |
*norm = GetNorm2(work0[0],work0[1]);
|
|
|
351 |
break;
|
|
|
352 |
case NORM_1_AND_2:
|
|
|
353 |
work[0] = norm[0]; work[1] = norm[1]; work[2] = s;
|
|
|
354 |
ierr = MPI_Allreduce(work,work0,1,MPIU_NORM1_AND_2,MPIU_NORM2_SUM,((PetscObject)a)->comm);CHKERRQ(ierr);
|
|
|
355 |
norm[0] = work0[0];
|
|
|
356 |
norm[1] = GetNorm2(work0[1],work0[2]);
|
|
|
357 |
break;
|
|
|
358 |
case NORM_INFINITY:
|
|
|
359 |
work[0] = *norm;
|
|
|
360 |
ierr = MPI_Allreduce(work,norm,1,MPIU_REAL,MPIU_MAX,((PetscObject)a)->comm);CHKERRQ(ierr);
|
|
|
361 |
break;
|
|
|
362 |
}
|
| 1960 |
eromero |
363 |
}
|
| 2545 |
eromero |
364 |
#else
|
|
|
365 |
/* Norm correction */
|
|
|
366 |
switch(t) {
|
|
|
367 |
case NORM_2: case NORM_FROBENIUS: *norm = GetNorm2(*norm,s); break;
|
|
|
368 |
case NORM_1_AND_2: norm[1] = GetNorm2(norm[1],s); break;
|
|
|
369 |
default: ;
|
|
|
370 |
}
|
| 1960 |
eromero |
371 |
#endif
|
|
|
372 |
|
|
|
373 |
PetscFunctionReturn(0);
|
|
|
374 |
}
|
|
|
375 |
|
| 2009 |
eromero |
376 |
#undef __FUNCT__
|
|
|
377 |
#define __FUNCT__ __SUF_C__(VecDotNorm2_Comp)
|
| 2336 |
jroman |
378 |
PetscErrorCode __SUF__(VecDotNorm2_Comp)(Vec v,Vec w,PetscScalar *dp,PetscScalar *nm)
|
| 2009 |
eromero |
379 |
{
|
| 2336 |
jroman |
380 |
PetscScalar *vx,*wx,dp0,nm0,dp1,nm1;
|
|
|
381 |
PetscErrorCode ierr;
|
|
|
382 |
Vec_Comp *vs = (Vec_Comp*)v->data,*ws = (Vec_Comp*)w->data;
|
|
|
383 |
PetscInt i,n;
|
|
|
384 |
PetscBool t0,t1;
|
| 2009 |
eromero |
385 |
#ifdef __WITH_MPI__
|
| 2336 |
jroman |
386 |
PetscScalar work[4];
|
| 2009 |
eromero |
387 |
#endif
|
| 1960 |
eromero |
388 |
|
| 2009 |
eromero |
389 |
PetscFunctionBegin;
|
|
|
390 |
/* Compute recursively the local part */
|
|
|
391 |
dp0 = nm0 = 0.0;
|
| 2823 |
jroman |
392 |
ierr = PetscObjectTypeCompare((PetscObject)v,VECCOMP,&t0);CHKERRQ(ierr);
|
|
|
393 |
ierr = PetscObjectTypeCompare((PetscObject)w,VECCOMP,&t1);CHKERRQ(ierr);
|
| 2009 |
eromero |
394 |
if (t0 == PETSC_TRUE && t1 == PETSC_TRUE) {
|
|
|
395 |
PetscValidVecComp(v);
|
|
|
396 |
PetscValidVecComp(w);
|
| 2336 |
jroman |
397 |
for (i=0;i<vs->n->n;i++) {
|
|
|
398 |
ierr = VecDotNorm2_Comp_Seq(vs->x[i],ws->x[i],&dp1,&nm1);CHKERRQ(ierr);
|
|
|
399 |
dp0 += dp1;
|
|
|
400 |
nm0 += nm1;
|
| 2009 |
eromero |
401 |
}
|
|
|
402 |
} else if (t0 == PETSC_FALSE && t1 == PETSC_FALSE) {
|
| 2336 |
jroman |
403 |
ierr = VecGetLocalSize(v,&n);CHKERRQ(ierr);
|
|
|
404 |
ierr = VecGetArray(v,&vx);CHKERRQ(ierr);
|
|
|
405 |
ierr = VecGetArray(w,&wx);CHKERRQ(ierr);
|
|
|
406 |
for (i=0;i<n;i++) {
|
| 2009 |
eromero |
407 |
dp0 += vx[i]*PetscConj(wx[i]);
|
|
|
408 |
nm0 += wx[i]*PetscConj(wx[i]);
|
|
|
409 |
}
|
| 2336 |
jroman |
410 |
ierr = VecRestoreArray(v,&vx);CHKERRQ(ierr);
|
|
|
411 |
ierr = VecRestoreArray(w,&wx);CHKERRQ(ierr);
|
| 2009 |
eromero |
412 |
} else
|
| 2214 |
jroman |
413 |
SETERRQ(((PetscObject)v)->comm,PETSC_ERR_ARG_INCOMP,"Incompatible vector types");
|
| 2009 |
eromero |
414 |
|
|
|
415 |
#ifdef __WITH_MPI__
|
|
|
416 |
/* [dp, nm] <- Allreduce([dp0, nm0]) */
|
|
|
417 |
work[0] = dp0; work[1] = nm0;
|
| 2336 |
jroman |
418 |
ierr = MPI_Allreduce(&work,&work[2],2,MPIU_SCALAR,MPIU_SUM,((PetscObject)v)->comm);CHKERRQ(ierr);
|
| 2009 |
eromero |
419 |
*dp = work[2]; *nm = work[3];
|
|
|
420 |
#else
|
|
|
421 |
*dp = dp0; *nm = nm0;
|
|
|
422 |
#endif
|
|
|
423 |
PetscFunctionReturn(0);
|
|
|
424 |
}
|
|
|
425 |
|
| 1960 |
eromero |
426 |
#undef __SUF__
|
|
|
427 |
#undef __QUOTEME
|
|
|
428 |
#undef __SUF_C__
|
|
|
429 |
|