Files
mfem/fem/ceed/interface/restriction.hpp
T

90 lines
3.5 KiB
C++

// Copyright (c) 2010-2025, Lawrence Livermore National Security, LLC. Produced
// at the Lawrence Livermore National Laboratory. All Rights reserved. See files
// LICENSE and NOTICE for details. LLNL-CODE-806117.
//
// This file is part of the MFEM library. For more information and source code
// availability visit https://mfem.org.
//
// MFEM is free software; you can redistribute it and/or modify it under the
// terms of the BSD-3 license. We welcome feedback and contributions, see file
// CONTRIBUTING.md for details.
#ifndef MFEM_LIBCEED_RESTR
#define MFEM_LIBCEED_RESTR
#include "ceed.hpp"
namespace mfem
{
namespace ceed
{
#ifdef MFEM_USE_CEED
/** @brief Initialize a CeedElemRestriction for non-mixed meshes.
@param[in] fes Input finite element space.
@param[in] ceed Input Ceed object.
@param[out] restr The address of the initialized CeedElemRestriction object.
*/
void InitRestriction(const FiniteElementSpace &fes,
Ceed ceed,
CeedElemRestriction *restr);
/** @brief Initialize a CeedElemRestriction for mixed meshes.
@param[in] fes The finite element space.
@param[in] ceed The Ceed object.
@param[in] nelem The number of elements.
@param[in] indices The indices of the elements of same type in the
`FiniteElementSpace`.
@param[out] restr The `CeedElemRestriction` to initialize. */
void InitRestrictionWithIndices(const FiniteElementSpace &fes,
int nelem,
const int* indices,
Ceed ceed,
CeedElemRestriction *restr);
/** @brief Initialize a strided CeedElemRestriction
@param[in] fes Input finite element space.
@param[in] nelem is the number of elements.
@param[in] nqpts is the total number of quadrature points.
@param[in] qdatasize is the number of data per quadrature point.
@param[in] strides Array for strides between [nodes, components, elements].
Data for node i, component j, element k can be found in the L-vector at
index i*strides[0] + j*strides[1] + k*strides[2]. CEED_STRIDES_BACKEND may
be used with vectors created by a Ceed backend.
@param[out] restr The `CeedElemRestriction` to initialize. */
void InitStridedRestriction(const mfem::FiniteElementSpace &fes,
CeedInt nelem, CeedInt nqpts, CeedInt qdatasize,
const CeedInt *strides,
CeedElemRestriction *restr);
/** @brief Initialize a CeedElemRestriction for a mfem::Coefficient on a mixed
mesh.
@param[in] fes The finite element space.
@param[in] nelem is the number of elements.
@param[in] indices The indices of the elements of same type in the
`FiniteElementSpace`.
@param[in] nquads is the total number of quadrature points
@param[in] ncomp is the number of data per quadrature point
@param[in] ceed The Ceed object.
@param[out] restr The `CeedElemRestriction` to initialize. */
void InitCoeffRestrictionWithIndices(const FiniteElementSpace &fes,
int nelem,
const int* indices,
int nquads,
int ncomp,
Ceed ceed,
CeedElemRestriction *restr);
#endif
} // namespace ceed
} // namespace mfem
#endif // MFEM_LIBCEED_RESTR