/usr/lib/slepcdir/3.7.3/x86_64-linux-gnu-complex/include/slepc/private/fnimpl.h is in libslepc-complex-3.7.3-dev 3.7.3+dfsg1-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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SLEPc - Scalable Library for Eigenvalue Problem Computations
Copyright (c) 2002-2016, 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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*/
#if !defined(_FNIMPL)
#define _FNIMPL
#include <slepcfn.h>
#include <slepc/private/slepcimpl.h>
PETSC_EXTERN PetscBool FNRegisterAllCalled;
PETSC_EXTERN PetscErrorCode FNRegisterAll(void);
PETSC_EXTERN PetscLogEvent FN_Evaluate;
typedef struct _FNOps *FNOps;
struct _FNOps {
PetscErrorCode (*evaluatefunction)(FN,PetscScalar,PetscScalar*);
PetscErrorCode (*evaluatederivative)(FN,PetscScalar,PetscScalar*);
PetscErrorCode (*evaluatefunctionmat)(FN,Mat,Mat);
PetscErrorCode (*evaluatefunctionmatsym)(FN,Mat,Mat);
PetscErrorCode (*evaluatefunctionmatvec)(FN,Mat,Vec);
PetscErrorCode (*evaluatefunctionmatvecsym)(FN,Mat,Vec);
PetscErrorCode (*setfromoptions)(PetscOptionItems*,FN);
PetscErrorCode (*view)(FN,PetscViewer);
PetscErrorCode (*duplicate)(FN,MPI_Comm,FN*);
PetscErrorCode (*destroy)(FN);
};
#define FN_MAX_W 6
struct _p_FN {
PETSCHEADER(struct _FNOps);
/*------------------------- User parameters --------------------------*/
PetscScalar alpha; /* inner scaling (argument) */
PetscScalar beta; /* outer scaling (result) */
/*---------------------- Cached data and workspace -------------------*/
Mat W[FN_MAX_W]; /* workspace matrices */
PetscInt nw; /* number of allocated W matrices */
PetscInt cw; /* current W matrix */
void *data;
};
#undef __FUNCT__
#define __FUNCT__ "FN_AllocateWorkMat"
/*
FN_AllocateWorkMat - Allocate a work Mat of the same dimension of A and copy
its contents. The work matrix is returned in M and should be freed with
FN_FreeWorkMat().
*/
PETSC_STATIC_INLINE PetscErrorCode FN_AllocateWorkMat(FN fn,Mat A,Mat *M)
{
PetscErrorCode ierr;
PetscInt n,na;
PetscBool create=PETSC_FALSE;
PetscFunctionBegin;
*M = NULL;
if (fn->cw==FN_MAX_W) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP,"Too many requested work matrices %D",fn->cw);
if (fn->nw<=fn->cw) {
create=PETSC_TRUE;
fn->nw++;
} else {
ierr = MatGetSize(fn->W[fn->cw],&n,NULL);CHKERRQ(ierr);
ierr = MatGetSize(A,&na,NULL);CHKERRQ(ierr);
if (n!=na) {
ierr = MatDestroy(&fn->W[fn->cw]);CHKERRQ(ierr);
create=PETSC_TRUE;
}
}
if (create) {
ierr = MatDuplicate(A,MAT_COPY_VALUES,&fn->W[fn->cw]);CHKERRQ(ierr);
ierr = PetscLogObjectParent((PetscObject)fn,(PetscObject)fn->W[fn->cw]);CHKERRQ(ierr);
} else {
ierr = MatCopy(A,fn->W[fn->cw],SAME_NONZERO_PATTERN);CHKERRQ(ierr);
}
*M = fn->W[fn->cw];
fn->cw++;
PetscFunctionReturn(0);
}
#undef __FUNCT__
#define __FUNCT__ "FN_FreeWorkMat"
/*
FN_FreeWorkMat - Release a work matrix created with FN_AllocateWorkMat().
*/
PETSC_STATIC_INLINE PetscErrorCode FN_FreeWorkMat(FN fn,Mat *M)
{
PetscFunctionBegin;
if (!fn->cw) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"There are no work matrices");
fn->cw--;
if (fn->W[fn->cw]!=*M) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONG,"Work matrices must be freed in the reverse order of their creation");
*M = NULL;
PetscFunctionReturn(0);
}
PETSC_INTERN PetscErrorCode SlepcMatDenseSqrt(PetscBLASInt,PetscScalar*,PetscBLASInt);
PETSC_INTERN PetscErrorCode SlepcSchurParlettSqrt(PetscBLASInt,PetscScalar*,PetscBLASInt,PetscBool);
#endif
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