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TpetraExt_MatrixMatrix_ExtraKernels_decl.hpp
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41 
42 #ifndef TPETRA_MATRIXMATRIX_EXTRAKERNELS_DECL_HPP
43 #define TPETRA_MATRIXMATRIX_EXTRAKERNELS_DECL_HPP
44 #include "TpetraExt_MatrixMatrix_decl.hpp"
45 
46 
47 namespace Tpetra {
48 
49 namespace MatrixMatrix {
50 
51  // This guy allows us to easily get an Unmanaged Kokkos View from a ManagedOne
52  template <typename View>
53  using UnmanagedView = Kokkos::View< typename View::data_type
54  , typename View::array_layout
55  , typename View::device_type
56  , typename Kokkos::MemoryTraits< Kokkos::Unmanaged>
57  >;
58 
59  namespace ExtraKernels {
60 
61  template<class CrsMatrixType>
62  size_t C_estimate_nnz_per_row(CrsMatrixType & A, CrsMatrixType &B);
63 
64  // 2019 Apr 10 JJE:
65  // copies data from thread local chunks into a unified CSR structure
66  // 'const' on the inCol and inVals array is a lie. The routine will deallocate
67  // the thread local storage. Maybe they shouldn't be const. Or mark, non-const
68  // and have a helper function for the actual copies that takes these as const
69  // . The point of const is that we want the loops to optimize assuming the
70  // RHS is unchanging
71  template<class InColindArrayType,
72  class InValsArrayType,
73  class OutRowptrType,
74  class OutColindType,
75  class OutValsType>
76  void copy_out_from_thread_memory(const OutColindType& thread_total_nnz,
77  const InColindArrayType& Incolind,
78  const InValsArrayType& Invals,
79  const size_t m,
80  const double thread_chunk,
81  OutRowptrType& Outrowptr,
82  OutColindType& Outcolind,
83  OutValsType& Outvals);
84 
85  /***************************** Matrix-Matrix OpenMP Only Kernels *****************************/
86 #ifdef HAVE_TPETRA_INST_OPENMP
87  template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class LocalOrdinalViewType>
88  static inline void mult_A_B_newmatrix_LowThreadGustavsonKernel(CrsMatrixStruct<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& Aview,
89  CrsMatrixStruct<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& Bview,
90  const LocalOrdinalViewType & Acol2Brow,
91  const LocalOrdinalViewType & Acol2Irow,
92  const LocalOrdinalViewType & Bcol2Ccol,
93  const LocalOrdinalViewType & Icol2Ccol,
94  CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& C,
95  Teuchos::RCP<const Import<LocalOrdinal,GlobalOrdinal,Tpetra::KokkosCompat::KokkosOpenMPWrapperNode> > Cimport,
96  const std::string& label,
97  const Teuchos::RCP<Teuchos::ParameterList>& params);
98 
99  template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class LocalOrdinalViewType>
100  static inline void mult_A_B_reuse_LowThreadGustavsonKernel(CrsMatrixStruct<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& Aview,
101  CrsMatrixStruct<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& Bview,
102  const LocalOrdinalViewType & Acol2Brow,
103  const LocalOrdinalViewType & Acol2Irow,
104  const LocalOrdinalViewType & Bcol2Ccol,
105  const LocalOrdinalViewType & Icol2Ccol,
106  CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& C,
107  Teuchos::RCP<const Import<LocalOrdinal,GlobalOrdinal,Tpetra::KokkosCompat::KokkosOpenMPWrapperNode> > Cimport,
108  const std::string& label,
109  const Teuchos::RCP<Teuchos::ParameterList>& params);
110 
111  template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class LocalOrdinalViewType>
112  static inline void jacobi_A_B_newmatrix_LowThreadGustavsonKernel(Scalar omega,
113  const Vector<Scalar,LocalOrdinal,GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode> & Dinv,
114  CrsMatrixStruct<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& Aview,
115  CrsMatrixStruct<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& Bview,
116  const LocalOrdinalViewType & Acol2Brow,
117  const LocalOrdinalViewType & Acol2Irow,
118  const LocalOrdinalViewType & Bcol2Ccol,
119  const LocalOrdinalViewType & Icol2Ccol,
120  CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& C,
121  Teuchos::RCP<const Import<LocalOrdinal,GlobalOrdinal,Tpetra::KokkosCompat::KokkosOpenMPWrapperNode> > Cimport,
122  const std::string& label,
123  const Teuchos::RCP<Teuchos::ParameterList>& params);
124 
125  template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class LocalOrdinalViewType>
126  static inline void jacobi_A_B_reuse_LowThreadGustavsonKernel(Scalar omega,
127  const Vector<Scalar,LocalOrdinal,GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode> & Dinv,
128  CrsMatrixStruct<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& Aview,
129  CrsMatrixStruct<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& Bview,
130  const LocalOrdinalViewType & Acol2Brow,
131  const LocalOrdinalViewType & Acol2Irow,
132  const LocalOrdinalViewType & Bcol2Ccol,
133  const LocalOrdinalViewType & Icol2Ccol,
134  CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& C,
135  Teuchos::RCP<const Import<LocalOrdinal,GlobalOrdinal,Tpetra::KokkosCompat::KokkosOpenMPWrapperNode> > Cimport,
136  const std::string& label,
137  const Teuchos::RCP<Teuchos::ParameterList>& params);
138 #endif
139 
140  /***************************** Matrix-Matrix Generic Kernels *****************************/
141  template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node, class LocalOrdinalViewType>
142  static inline void jacobi_A_B_newmatrix_MultiplyScaleAddKernel(Scalar omega,
143  const Vector<Scalar,LocalOrdinal,GlobalOrdinal, Node> & Dinv,
144  CrsMatrixStruct<Scalar, LocalOrdinal, GlobalOrdinal, Node>& Aview,
145  CrsMatrixStruct<Scalar, LocalOrdinal, GlobalOrdinal, Node>& Bview,
146  const LocalOrdinalViewType & Acol2rrow,
147  const LocalOrdinalViewType & Acol2Irow,
148  const LocalOrdinalViewType & Bcol2Ccol,
149  const LocalOrdinalViewType & Icol2Ccol,
150  CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node>& C,
151  Teuchos::RCP<const Import<LocalOrdinal,GlobalOrdinal,Node> > Cimport,
152  const std::string& label,
153  const Teuchos::RCP<Teuchos::ParameterList>& params);
154 
155 
156  /***************************** Triple Product OpenMP Only Kernels *****************************/
157 #ifdef HAVE_TPETRA_INST_OPENMP
158  template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class LocalOrdinalViewType>
159  static inline void mult_R_A_P_newmatrix_LowThreadGustavsonKernel(CrsMatrixStruct<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& Rview,
160  CrsMatrixStruct<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& Aview,
161  CrsMatrixStruct<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& Pview,
162  const LocalOrdinalViewType & Acol2Prow,
163  const LocalOrdinalViewType & Acol2PIrow,
164  const LocalOrdinalViewType & Pcol2Accol,
165  const LocalOrdinalViewType & PIcol2Accol,
166  CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Tpetra::KokkosCompat::KokkosOpenMPWrapperNode>& Ac,
167  Teuchos::RCP<const Import<LocalOrdinal,GlobalOrdinal,Tpetra::KokkosCompat::KokkosOpenMPWrapperNode> > Acimport,
168  const std::string& label = std::string(),
169  const Teuchos::RCP<Teuchos::ParameterList>& params = Teuchos::null);
170 #endif
171 
172 
173  }// ExtraKernels
174 }//MatrixMatrix
175 }//Tpetra
176 
177 
178 
179 #endif
TpetraExt_MatrixMatrix_decl.hpp
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