geev.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_LAPACK_CLAPACK_GEEV_H_
36 #define _BLAZE_MATH_LAPACK_CLAPACK_GEEV_H_
37 
38 
39 //*************************************************************************************************
40 // Includes
41 //*************************************************************************************************
42 
43 #include <blaze/util/Complex.h>
45 
46 
47 //=================================================================================================
48 //
49 // LAPACK FORWARD DECLARATIONS
50 //
51 //=================================================================================================
52 
53 //*************************************************************************************************
55 #if !defined(INTEL_MKL_VERSION)
56 extern "C" {
57 
58 void sgeev_( char* jobvl, char* jobvr, int* n, float* A, int* lda, float* wr, float* wi, float* VL, int* ldvl, float* VR, int* ldvr, float* work, int* lwork, int* info );
59 void dgeev_( char* jobvl, char* jobvr, int* n, double* A, int* lda, double* wr, double* wi, double* VL, int* ldvl, double* VR, int* ldvr, double* work, int* lwork, int* info );
60 void cgeev_( char* jobvl, char* jobvr, int* n, float* A, int* lda, float* w, float* VL, int* ldvl, float* VR, int* ldvr, float* work, int* lwork, float* rwork, int* info );
61 void zgeev_( char* jobvl, char* jobvr, int* n, double* A, int* lda, double* w, double* VL, int* ldvl, double* VR, int* ldvr, double* work, int* lwork, double* rwork, int* info );
62 
63 }
64 #endif
65 
66 //*************************************************************************************************
67 
68 
69 
70 
71 namespace blaze {
72 
73 //=================================================================================================
74 //
75 // LAPACK GENERAL MATRIX EIGENVALUE FUNCTIONS (GEEV)
76 //
77 //=================================================================================================
78 
79 //*************************************************************************************************
82 inline void geev( char jobvl, char jobvr, int n, float* A, int lda,
83  float* wr, float* wi, float* VL, int ldvl, float* VR, int ldvr,
84  float* work, int lwork, int* info );
85 
86 inline void geev( char jobvl, char jobvr, int n, double* A, int lda,
87  double* wr, double* wi, double* VL, int ldvl, double* VR, int ldvr,
88  double* work, int lwork, int* info );
89 
90 inline void geev( char jobvl, char jobvr, int n, complex<float>* A, int lda,
91  complex<float>* w, complex<float>* VL, int ldvl, complex<float>* VR, int ldvr,
92  complex<float>* work, int lwork, float* rwork, int* info );
93 
94 inline void geev( char jobvl, char jobvr, int n, complex<double>* A, int lda,
95  complex<double>* w, complex<double>* VL, int ldvl, complex<double>* VR, int ldvr,
96  complex<double>* work, int lwork, double* rwork, int* info );
98 //*************************************************************************************************
99 
100 
101 //*************************************************************************************************
163 inline void geev( char jobvl, char jobvr, int n, float* A, int lda,
164  float* wr, float* wi, float* VL, int ldvl, float* VR, int ldvr,
165  float* work, int lwork, int* info )
166 {
167 #if defined(INTEL_MKL_VERSION)
168  BLAZE_STATIC_ASSERT( sizeof( MKL_INT ) == sizeof( int ) );
169 #endif
170 
171  sgeev_( &jobvl, &jobvr, &n, A, &lda, wr, wi, VL, &ldvl, VR, &ldvr, work, &lwork, info );
172 }
173 //*************************************************************************************************
174 
175 
176 //*************************************************************************************************
238 inline void geev( char jobvl, char jobvr, int n, double* A, int lda,
239  double* wr, double* wi, double* VL, int ldvl, double* VR, int ldvr,
240  double* work, int lwork, int* info )
241 {
242 #if defined(INTEL_MKL_VERSION)
243  BLAZE_STATIC_ASSERT( sizeof( MKL_INT ) == sizeof( int ) );
244 #endif
245 
246  dgeev_( &jobvl, &jobvr, &n, A, &lda, wr, wi, VL, &ldvl, VR, &ldvr, work, &lwork, info );
247 }
248 //*************************************************************************************************
249 
250 
251 //*************************************************************************************************
313 inline void geev( char jobvl, char jobvr, int n, complex<float>* A, int lda,
314  complex<float>* w, complex<float>* VL, int ldvl, complex<float>* VR, int ldvr,
315  complex<float>* work, int lwork, float* rwork, int* info )
316 {
317  BLAZE_STATIC_ASSERT( sizeof( complex<float> ) == 2UL*sizeof( float ) );
318 
319 #if defined(INTEL_MKL_VERSION)
320  BLAZE_STATIC_ASSERT( sizeof( MKL_INT ) == sizeof( int ) );
321  using ET = MKL_Complex8;
322 #else
323  using ET = float;
324 #endif
325 
326  cgeev_( &jobvl, &jobvr, &n, reinterpret_cast<ET*>( A ), &lda, reinterpret_cast<ET*>( w ),
327  reinterpret_cast<ET*>( VL ), &ldvl, reinterpret_cast<ET*>( VR ), &ldvr,
328  reinterpret_cast<ET*>( work ), &lwork, rwork, info );
329 }
330 //*************************************************************************************************
331 
332 
333 //*************************************************************************************************
395 inline void geev( char jobvl, char jobvr, int n, complex<double>* A, int lda,
396  complex<double>* w, complex<double>* VL, int ldvl, complex<double>* VR, int ldvr,
397  complex<double>* work, int lwork, double* rwork, int* info )
398 {
399  BLAZE_STATIC_ASSERT( sizeof( complex<double> ) == 2UL*sizeof( double ) );
400 
401 #if defined(INTEL_MKL_VERSION)
402  BLAZE_STATIC_ASSERT( sizeof( MKL_INT ) == sizeof( int ) );
403  using ET = MKL_Complex16;
404 #else
405  using ET = double;
406 #endif
407 
408  zgeev_( &jobvl, &jobvr, &n, reinterpret_cast<ET*>( A ), &lda, reinterpret_cast<ET*>( w ),
409  reinterpret_cast<ET*>( VL ), &ldvl, reinterpret_cast<ET*>( VR ), &ldvr,
410  reinterpret_cast<ET*>( work ), &lwork, rwork, info );
411 }
412 //*************************************************************************************************
413 
414 } // namespace blaze
415 
416 #endif
Namespace of the Blaze C++ math library.
Definition: Blaze.h:58
Compile time assertion.
void geev(char jobvl, char jobvr, int n, float *A, int lda, float *wr, float *wi, float *VL, int ldvl, float *VR, int ldvr, float *work, int lwork, int *info)
LAPACK kernel for computing the eigenvalues of the given dense general single precision column-major ...
Definition: geev.h:163
Header file for the complex data type.
#define BLAZE_STATIC_ASSERT(expr)
Compile time assertion macro.In case of an invalid compile time expression, a compilation error is cr...
Definition: StaticAssert.h:112