GeneralMatrixMatrixTriangular_BLAS.h
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27  ********************************************************************************
28  * Content : Eigen bindings to BLAS F77
29  * Level 3 BLAS SYRK/HERK implementation.
30  ********************************************************************************
31 */
32 
33 #ifndef EIGEN_GENERAL_MATRIX_MATRIX_TRIANGULAR_BLAS_H
34 #define EIGEN_GENERAL_MATRIX_MATRIX_TRIANGULAR_BLAS_H
35 
36 namespace Eigen {
37 
38 namespace internal {
39 
40 template <typename Index, typename Scalar, int AStorageOrder, bool ConjugateA, int ResStorageOrder, int UpLo>
43  Index,Scalar,AStorageOrder,ConjugateA,Scalar,AStorageOrder,ConjugateA,ResStorageOrder,1,UpLo,BuiltIn> {};
44 
45 
46 // try to go to BLAS specialization
47 #define EIGEN_BLAS_RANKUPDATE_SPECIALIZE(Scalar) \
48 template <typename Index, int LhsStorageOrder, bool ConjugateLhs, \
49  int RhsStorageOrder, bool ConjugateRhs, int UpLo> \
50 struct general_matrix_matrix_triangular_product<Index,Scalar,LhsStorageOrder,ConjugateLhs, \
51  Scalar,RhsStorageOrder,ConjugateRhs,ColMajor,1,UpLo,Specialized> { \
52  static EIGEN_STRONG_INLINE void run(Index size, Index depth,const Scalar* lhs, Index lhsStride, \
53  const Scalar* rhs, Index rhsStride, Scalar* res, Index resIncr, Index resStride, Scalar alpha, level3_blocking<Scalar, Scalar>& blocking) \
54  { \
55  if ( lhs==rhs && ((UpLo&(Lower|Upper))==UpLo) ) { \
56  general_matrix_matrix_rankupdate<Index,Scalar,LhsStorageOrder,ConjugateLhs,ColMajor,UpLo> \
57  ::run(size,depth,lhs,lhsStride,rhs,rhsStride,res,resStride,alpha,blocking); \
58  } else { \
59  general_matrix_matrix_triangular_product<Index, \
60  Scalar, LhsStorageOrder, ConjugateLhs, \
61  Scalar, RhsStorageOrder, ConjugateRhs, \
62  ColMajor, 1, UpLo, BuiltIn> \
63  ::run(size,depth,lhs,lhsStride,rhs,rhsStride,res,resIncr,resStride,alpha,blocking); \
64  } \
65  } \
66 };
67 
70 // TODO handle complex cases
71 // EIGEN_BLAS_RANKUPDATE_SPECIALIZE(dcomplex)
72 // EIGEN_BLAS_RANKUPDATE_SPECIALIZE(scomplex)
73 
74 // SYRK for float/double
75 #define EIGEN_BLAS_RANKUPDATE_R(EIGTYPE, BLASTYPE, BLASFUNC) \
76 template <typename Index, int AStorageOrder, bool ConjugateA, int UpLo> \
77 struct general_matrix_matrix_rankupdate<Index,EIGTYPE,AStorageOrder,ConjugateA,ColMajor,UpLo> { \
78  enum { \
79  IsLower = (UpLo&Lower) == Lower, \
80  LowUp = IsLower ? Lower : Upper, \
81  conjA = ((AStorageOrder==ColMajor) && ConjugateA) ? 1 : 0 \
82  }; \
83  static EIGEN_STRONG_INLINE void run(Index size, Index depth,const EIGTYPE* lhs, Index lhsStride, \
84  const EIGTYPE* /*rhs*/, Index /*rhsStride*/, EIGTYPE* res, Index resStride, EIGTYPE alpha, level3_blocking<EIGTYPE, EIGTYPE>& /*blocking*/) \
85  { \
86  /* typedef Matrix<EIGTYPE, Dynamic, Dynamic, RhsStorageOrder> MatrixRhs;*/ \
87 \
88  BlasIndex lda=convert_index<BlasIndex>(lhsStride), ldc=convert_index<BlasIndex>(resStride), n=convert_index<BlasIndex>(size), k=convert_index<BlasIndex>(depth); \
89  char uplo=((IsLower) ? 'L' : 'U'), trans=((AStorageOrder==RowMajor) ? 'T':'N'); \
90  EIGTYPE beta(1); \
91  BLASFUNC(&uplo, &trans, &n, &k, (const BLASTYPE*)&numext::real_ref(alpha), lhs, &lda, (const BLASTYPE*)&numext::real_ref(beta), res, &ldc); \
92  } \
93 };
94 
95 // HERK for complex data
96 #define EIGEN_BLAS_RANKUPDATE_C(EIGTYPE, BLASTYPE, RTYPE, BLASFUNC) \
97 template <typename Index, int AStorageOrder, bool ConjugateA, int UpLo> \
98 struct general_matrix_matrix_rankupdate<Index,EIGTYPE,AStorageOrder,ConjugateA,ColMajor,UpLo> { \
99  enum { \
100  IsLower = (UpLo&Lower) == Lower, \
101  LowUp = IsLower ? Lower : Upper, \
102  conjA = (((AStorageOrder==ColMajor) && ConjugateA) || ((AStorageOrder==RowMajor) && !ConjugateA)) ? 1 : 0 \
103  }; \
104  static EIGEN_STRONG_INLINE void run(Index size, Index depth,const EIGTYPE* lhs, Index lhsStride, \
105  const EIGTYPE* /*rhs*/, Index /*rhsStride*/, EIGTYPE* res, Index resStride, EIGTYPE alpha, level3_blocking<EIGTYPE, EIGTYPE>& /*blocking*/) \
106  { \
107  typedef Matrix<EIGTYPE, Dynamic, Dynamic, AStorageOrder> MatrixType; \
108 \
109  BlasIndex lda=convert_index<BlasIndex>(lhsStride), ldc=convert_index<BlasIndex>(resStride), n=convert_index<BlasIndex>(size), k=convert_index<BlasIndex>(depth); \
110  char uplo=((IsLower) ? 'L' : 'U'), trans=((AStorageOrder==RowMajor) ? 'C':'N'); \
111  RTYPE alpha_, beta_; \
112  const EIGTYPE* a_ptr; \
113 \
114  alpha_ = alpha.real(); \
115  beta_ = 1.0; \
116 /* Copy with conjugation in some cases*/ \
117  MatrixType a; \
118  if (conjA) { \
119  Map<const MatrixType, 0, OuterStride<> > mapA(lhs,n,k,OuterStride<>(lhsStride)); \
120  a = mapA.conjugate(); \
121  lda = a.outerStride(); \
122  a_ptr = a.data(); \
123  } else a_ptr=lhs; \
124  BLASFUNC(&uplo, &trans, &n, &k, &alpha_, (BLASTYPE*)a_ptr, &lda, &beta_, (BLASTYPE*)res, &ldc); \
125  } \
126 };
127 
128 #ifdef EIGEN_USE_MKL
129 EIGEN_BLAS_RANKUPDATE_R(double, double, dsyrk)
130 EIGEN_BLAS_RANKUPDATE_R(float, float, ssyrk)
131 #else
132 EIGEN_BLAS_RANKUPDATE_R(double, double, dsyrk_)
133 EIGEN_BLAS_RANKUPDATE_R(float, float, ssyrk_)
134 #endif
135 
136 // TODO hanlde complex cases
137 // EIGEN_BLAS_RANKUPDATE_C(dcomplex, double, double, zherk_)
138 // EIGEN_BLAS_RANKUPDATE_C(scomplex, float, float, cherk_)
139 
140 
141 } // end namespace internal
142 
143 } // end namespace Eigen
144 
145 #endif // EIGEN_GENERAL_MATRIX_MATRIX_TRIANGULAR_BLAS_H
Eigen
Namespace containing all symbols from the Eigen library.
Definition: jet.h:637
EIGEN_BLAS_RANKUPDATE_R
#define EIGEN_BLAS_RANKUPDATE_R(EIGTYPE, BLASTYPE, BLASFUNC)
Definition: GeneralMatrixMatrixTriangular_BLAS.h:75
Eigen::internal::general_matrix_matrix_triangular_product
Definition: GeneralMatrixMatrixTriangular.h:36
EIGEN_BLAS_RANKUPDATE_SPECIALIZE
#define EIGEN_BLAS_RANKUPDATE_SPECIALIZE(Scalar)
Definition: GeneralMatrixMatrixTriangular_BLAS.h:47
Eigen::internal::general_matrix_matrix_rankupdate
Definition: GeneralMatrixMatrixTriangular_BLAS.h:41
ssyrk
int BLASFUNC() ssyrk(char *, char *, int *, int *, float *, float *, int *, float *, float *, int *)
internal
Definition: BandTriangularSolver.h:13
dsyrk
int BLASFUNC() dsyrk(char *, char *, int *, int *, double *, double *, int *, double *, double *, int *)


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autogenerated on Fri Nov 1 2024 03:32:36