spectralUtils.h File Reference

A simple deleter for malloc'd memory. More...

#include <mpi.h>
#include <cmath>
#include <vector>
#include <complex>
#include <fftw3-mpi.h>
#include <algorithm>
#include <numeric>
#include <fstream>
#include <memory>
#include <stdint.h>
#include <string.h>
#include <hpp/config.h>
#include <hpp/hdfUtils.h>
#include <hpp/tensor.h>
#include <hpp/mpiUtils.h>
#include <hpp/simdUtils.h>
#include <hpp/stdlibReplacements.h>

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Classes
class	hpp::FreeDelete
struct	hpp::FFTWConfigRealND
class	hpp::SpectralDataset< U >
class	hpp::SpectralDatasetID
class	hpp::SpectralDatabase< U >
class	hpp::SpectralDatabaseUnified< U >

Namespaces
	hpp

Macros
#define	HPP_DEFAULT_ALIGNMENT   32
#define	HPP_DEFAULT_UNIFIED_COORDS_NAME   "unified_coords"
#define	HPP_DEFAULT_COORDS_SUFFIX   "_coords"
#define	HPP_DEFAULT_COEFFS_SUFFIX   "_vals"

Functions
int	hpp::fftwFlat2 (int i0, int i1, int N0, int N1)
int	hpp::fftwFlat4 (int i0, int i1, int i2, int i3, const std::vector< ptrdiff_t > &N)
FFTWConfigRealND	hpp::prepareFFTWConfigRealND (const std::vector< ptrdiff_t > &realDims, MPI_Comm comm)
void	hpp::destroyConfigRealND (FFTWConfigRealND &cfg)
double	hpp::fftwComplexMag (fftw_complex comps)
bool	hpp::operator< (const SpectralDatasetID &l, const SpectralDatasetID &r)
bool	hpp::operator== (const SpectralDatasetID &l, const SpectralDatasetID &r)
std::string	hpp::getCoordsName (std::string baseName)
std::string	hpp::getCoeffsName (std::string baseName)
template<typename U >
std::string	hpp::getComponentSuffix (const std::vector< U > &componentIdx)
std::string	hpp::getDefaultCoeffsDatasetName (SpectralDatasetID dsetID)
template<typename U >
void	hpp::loadSpectralDatabase (hpp::HDF5Handler &infile, std::string dsetNameCoords, std::string dsetNameCoeffs, std::vector< hsize_t > componentIdx, std::vector< std::vector< unsigned int >> &coordsList, std::vector< std::complex< U >> &coeffList, unsigned int nTerms, unsigned int refineMult=1)
	Load a spectral database. More...
template<typename U >
std::complex< U >	hpp::TruncatedIFFTNDSingleSquare (const unsigned int spatialDim, const std::vector< std::complex< U >> &expTable, const std::vector< std::vector< unsigned int >> &spectralCoordsList, const std::vector< std::complex< U >> &coeffs, std::vector< unsigned int > spatialCoord, unsigned int nTerms)
	TruncatedIFFTND where all dimensions have the same number of points. More...
template<typename U >
U	hpp::TruncatedIFFTNDSingleSquareReal (const unsigned int spatialDim, const std::vector< std::complex< U >> &expTable, const std::vector< std::vector< unsigned int >> &spectralCoordsList, const std::vector< std::complex< U >> &coeffs, std::vector< unsigned int > spatialCoord, unsigned int nTerms)
template<typename U >
U	hpp::TruncatedIFFTNDSingleSquareRealScalar (const unsigned int nDims, const unsigned int spatialDim, const U expTable[], const int spectralCoordsList[], const U coeffs[], std::vector< unsigned int > spatialCoord, unsigned int nTerms)
	Scalar implementation of hpp.TruncatedIFFTNDSingleSquareReal. More...
template<typename U >
U	hpp::TruncatedIFFTNDSingleSquareRealScalar (const unsigned int nDims, const unsigned int spatialDim, const int spectralCoordsList[], const U coeffs[], std::vector< unsigned int > spatialCoord, unsigned int nTerms)
template<typename U >
U	hpp::TruncatedIFFT4DSingleSquareReal (const unsigned int spatialDim, const U expTable[], const int spectralCoordsList[], const U coeffs[], const std::vector< unsigned int > &spatialCoord, unsigned int nTerms)
	AVX implementation of hpp.TruncatedIFFT4DSingleSquareReal. More...
template<typename U >
U	hpp::TruncatedIFFTNDSingleSquareReal (const unsigned int nDims, const unsigned int spatialDim, const U expTable[], const int spectralCoordsList[], const U coeffs[], const std::vector< unsigned int > &spatialCoord, unsigned int nTerms)
template<typename U >
U	hpp::TruncatedIFFT4DSingleSquareReal (const unsigned int spatialDim, const int spectralCoordsList[], const U coeffs[], const std::vector< unsigned int > &spatialCoord, unsigned int nTerms)
template<typename U >
U	hpp::TruncatedIFFTNDSingleSquareReal (const unsigned int nDims, const unsigned int spatialDim, const int spectralCoordsList[], const U coeffs[], const std::vector< unsigned int > &spatialCoord, unsigned int nTerms)
void	hpp::evaluateSpectralCompressionErrorFull (std::string rawDBName, std::string spectralDBName, std::string errorDBName, unsigned int nTermsMax, std::string outFilename, MPI_Comm comm)
void	hpp::evaluateSpectralCompressionErrorAxisSlice (std::string rawDBName, std::string spectralDBName, std::vector< std::string > dsetBasenames, unsigned int nTermsMax, unsigned int refineMult, std::vector< int > axisSlice, std::string outFilename, MPI_Comm comm)
	Evaluate the error incurred in the spectral reresentation of a database. More...
void	hpp::evaluateSpectralCompressionErrorFullUnified (std::string rawDBName, std::string spectralDBName, std::string errorDBName, unsigned int nTermsMax, std::string outFilename, MPI_Comm comm)
void	hpp::evaluateSpectralCompressionErrorAxisSliceUnified (std::string rawDBName, std::string spectralDBName, std::vector< std::string > dsetBasenames, unsigned int nTermsMax, unsigned int refineMult, std::vector< int > axisSlice, std::string outFilename, MPI_Comm comm)
	Evaluate the error incurred in the spectral reresentation of a database. More...

Detailed Description

A simple deleter for malloc'd memory.

A spectral database for DFTs of real data.

Specifically for DFTs of real data.

A unique ID for a spectral dataset.

A dataset containing the truncated N-dimensional DFT of a scalar.

The coordinates and coefficients are stored in aligned

Currently assumes that database is square

This is specifically for "unified" coefficient datasets, which here means that there is a single ordering of the dominant components that all of the coefficients follow.

Macro Definition Documentation

#define HPP_DEFAULT_ALIGNMENT   32

#define HPP_DEFAULT_COEFFS_SUFFIX   "_vals"

#define HPP_DEFAULT_COORDS_SUFFIX   "_coords"

#define HPP_DEFAULT_UNIFIED_COORDS_NAME   "unified_coords"