Eigen::internal::imklfft Namespace Reference

Classes
struct	plan
struct	plan< float >
struct	plan< double >
struct	imklfft_impl

Functions
MKL_Complex16 *	complex_cast (const std::complex< double > *p)
MKL_Complex8 *	complex_cast (const std::complex< float > *p)
void	configure_descriptor (std::shared_ptr< DFTI_DESCRIPTOR > &handl, enum DFTI_CONFIG_VALUE precision, enum DFTI_CONFIG_VALUE forward_domain, MKL_LONG dimension, MKL_LONG *sizes)

Function Documentation

complex_cast() [1/2]

MKL_Complex16* Eigen::internal::imklfft::complex_cast ( const std::complex< double > *  p )

inline

                                                                {
  return const_cast<MKL_Complex16*>(reinterpret_cast<const MKL_Complex16*>(p));
}

References p.

Referenced by Eigen::internal::imklfft::imklfft_impl< Scalar_ >::fwd(), Eigen::internal::imklfft::imklfft_impl< Scalar_ >::fwd2(), Eigen::internal::imklfft::imklfft_impl< Scalar_ >::inv(), and Eigen::internal::imklfft::imklfft_impl< Scalar_ >::inv2().

complex_cast() [2/2]

MKL_Complex8* Eigen::internal::imklfft::complex_cast ( const std::complex< float > *  p )

inline

                                                              {
  return const_cast<MKL_Complex8*>(reinterpret_cast<const MKL_Complex8*>(p));
}

References p.

configure_descriptor()

void Eigen::internal::imklfft::configure_descriptor ( std::shared_ptr< DFTI_DESCRIPTOR > &  handl, enum DFTI_CONFIG_VALUE  precision, enum DFTI_CONFIG_VALUE  forward_domain, MKL_LONG  dimension, MKL_LONG *  sizes  )

inline

                                                                                                             {
  eigen_assert(dimension == 1 || dimension == 2 && "Transformation dimension must be less than 3.");
 
  DFTI_DESCRIPTOR_HANDLE res = nullptr;
  if (dimension == 1) {
    RUN_OR_ASSERT(DftiCreateDescriptor(&res, precision, forward_domain, dimension, *sizes),
                  "DftiCreateDescriptor failed.")
    handl.reset(res, [](DFTI_DESCRIPTOR_HANDLE handle) { DftiFreeDescriptor(&handle); });
    if (forward_domain == DFTI_REAL) {
      // Set CCE storage
      RUN_OR_ASSERT(DftiSetValue(handl.get(), DFTI_CONJUGATE_EVEN_STORAGE, DFTI_COMPLEX_COMPLEX),
                    "DftiSetValue failed.")
    }
  } else {
    RUN_OR_ASSERT(DftiCreateDescriptor(&res, precision, DFTI_COMPLEX, dimension, sizes), "DftiCreateDescriptor failed.")
    handl.reset(res, [](DFTI_DESCRIPTOR_HANDLE handle) { DftiFreeDescriptor(&handle); });
  }
 
  RUN_OR_ASSERT(DftiSetValue(handl.get(), DFTI_PLACEMENT, DFTI_NOT_INPLACE), "DftiSetValue failed.")
  RUN_OR_ASSERT(DftiCommitDescriptor(handl.get()), "DftiCommitDescriptor failed.")
}

References eigen_assert, res, RUN_OR_ASSERT, and sizes.

Referenced by Eigen::internal::imklfft::plan< float >::forward(), Eigen::internal::imklfft::plan< double >::forward(), Eigen::internal::imklfft::plan< float >::forward2(), Eigen::internal::imklfft::plan< double >::forward2(), Eigen::internal::imklfft::plan< float >::inverse(), Eigen::internal::imklfft::plan< double >::inverse(), Eigen::internal::imklfft::plan< float >::inverse2(), and Eigen::internal::imklfft::plan< double >::inverse2().