MFEM v4.7.0
Finite element discretization library
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grad_phys_by_vdim.cpp
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1// Copyright (c) 2010-2024, Lawrence Livermore National Security, LLC. Produced
2// at the Lawrence Livermore National Laboratory. All Rights reserved. See files
3// LICENSE and NOTICE for details. LLNL-CODE-806117.
4//
5// This file is part of the MFEM library. For more information and source code
6// availability visit https://mfem.org.
7//
8// MFEM is free software; you can redistribute it and/or modify it under the
9// terms of the BSD-3 license. We welcome feedback and contributions, see file
10// CONTRIBUTING.md for details.
11
12#include "dispatch.hpp"
13#include "grad.hpp"
14
15namespace mfem
16{
17
18namespace internal
19{
20
21namespace quadrature_interpolator
22{
23
24// Tensor-product evaluation of quadrature point physical derivatives: dispatch
25// function.
26// Instantiation for the case QVectorLayout::byVDIM.
27template<>
28void TensorPhysDerivatives<QVectorLayout::byVDIM>(const int NE,
29 const int vdim,
30 const DofToQuad &maps,
31 const GeometricFactors &geom,
32 const Vector &e_vec,
33 Vector &q_der)
34{
35 if (NE == 0) { return; }
36 const int dim = maps.FE->GetDim();
37 const int D1D = maps.ndof;
38 const int Q1D = maps.nqpt;
39
40 const int sdim = geom.mesh->SpaceDimension();
41
42 const real_t *B = maps.B.Read();
43 const real_t *G = maps.G.Read();
44 const real_t *J = geom.J.Read();
45 const real_t *X = e_vec.Read();
46 real_t *Y = q_der.Write();
47
49 constexpr bool P = true; // GRAD_PHYS
50
51 const int id = (vdim<<8) | (D1D<<4) | Q1D;
52
53 if (dim == 1)
54 {
55 return Derivatives1D<L,P>(NE,G,J,X,Y,sdim,vdim,D1D,Q1D);
56 }
57 if (dim == 2)
58 {
59 switch (id)
60 {
61 case 0x134: return Derivatives2D<L,P,1,3,4,8>(NE,B,G,J,X,Y,sdim);
62 case 0x146: return Derivatives2D<L,P,1,4,6,4>(NE,B,G,J,X,Y,sdim);
63 case 0x158: return Derivatives2D<L,P,1,5,8,2>(NE,B,G,J,X,Y,sdim);
64
65 case 0x233: return Derivatives2D<L,P,2,3,3,8>(NE,B,G,J,X,Y,sdim);
66 case 0x234: return Derivatives2D<L,P,2,3,4,8>(NE,B,G,J,X,Y,sdim);
67 case 0x246: return Derivatives2D<L,P,2,4,6,4>(NE,B,G,J,X,Y,sdim);
68 case 0x258: return Derivatives2D<L,P,2,5,8,2>(NE,B,G,J,X,Y,sdim);
69 default:
70 {
71 const int MD = DeviceDofQuadLimits::Get().MAX_D1D;
72 const int MQ = DeviceDofQuadLimits::Get().MAX_Q1D;
73 MFEM_VERIFY(D1D <= MD, "Orders higher than " << MD-1
74 << " are not supported!");
75 MFEM_VERIFY(Q1D <= MQ, "Quadrature rules with more than "
76 << MQ << " 1D points are not supported!");
77 Derivatives2D<L,P>(NE,B,G,J,X,Y,sdim,vdim,D1D,Q1D);
78 return;
79 }
80 }
81 }
82 if (dim == 3)
83 {
84 switch (id)
85 {
86 case 0x134: return Derivatives3D<L,P,1,3,4>(NE,B,G,J,X,Y);
87 case 0x146: return Derivatives3D<L,P,1,4,6>(NE,B,G,J,X,Y);
88 case 0x158: return Derivatives3D<L,P,1,5,8>(NE,B,G,J,X,Y);
89
90 case 0x334: return Derivatives3D<L,P,3,3,4>(NE,B,G,J,X,Y);
91 case 0x346: return Derivatives3D<L,P,3,4,6>(NE,B,G,J,X,Y);
92 case 0x358: return Derivatives3D<L,P,3,5,8>(NE,B,G,J,X,Y);
93 default:
94 {
97 MFEM_VERIFY(D1D <= MD, "Orders higher than " << MD-1
98 << " are not supported!");
99 MFEM_VERIFY(Q1D <= MQ, "Quadrature rules with more than "
100 << MQ << " 1D points are not supported!");
101 Derivatives3D<L,P>(NE,B,G,J,X,Y,vdim,D1D,Q1D);
102 return;
103 }
104 }
105 }
106 mfem::out << "Unknown kernel 0x" << std::hex << id << std::endl;
107 MFEM_ABORT("Unknown kernel");
108}
109
110} // namespace quadrature_interpolator
111
112} // namespace internal
113
114} // namespace mfem
int dim
Definition ex24.cpp:53
OutStream out(std::cout)
Global stream used by the library for standard output. Initially it uses the same std::streambuf as s...
Definition globals.hpp:66
QVectorLayout
Type describing possible layouts for Q-vectors.
Definition fespace.hpp:53
@ byVDIM
VDIM x NQPT x NE (values) / VDIM x DIM x NQPT x NE (grads)
float real_t
Definition config.hpp:43
static const DeviceDofQuadLimits & Get()
Return a const reference to the DeviceDofQuadLimits singleton.
Definition forall.hpp:125
int MAX_INTERP_1D
Maximum number of points for use in QuadratureInterpolator.
Definition forall.hpp:121
int MAX_D1D
Maximum number of 1D nodal points.
Definition forall.hpp:115
int MAX_Q1D
Maximum number of 1D quadrature points.
Definition forall.hpp:116