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1 This is fftw3.info, produced by makeinfo version 6.3 from fftw3.texi.
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2
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3 This manual is for FFTW (version 3.3.8, 24 May 2018).
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4
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5 Copyright (C) 2003 Matteo Frigo.
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6
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7 Copyright (C) 2003 Massachusetts Institute of Technology.
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8
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9 Permission is granted to make and distribute verbatim copies of
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10 this manual provided the copyright notice and this permission
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11 notice are preserved on all copies.
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12
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13 Permission is granted to copy and distribute modified versions of
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14 this manual under the conditions for verbatim copying, provided
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15 that the entire resulting derived work is distributed under the
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16 terms of a permission notice identical to this one.
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17
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18 Permission is granted to copy and distribute translations of this
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19 manual into another language, under the above conditions for
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20 modified versions, except that this permission notice may be stated
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21 in a translation approved by the Free Software Foundation.
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22 INFO-DIR-SECTION Development
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23 START-INFO-DIR-ENTRY
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24 * fftw3: (fftw3). FFTW User's Manual.
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25 END-INFO-DIR-ENTRY
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26
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27
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28 Indirect:
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29 fftw3.info-1: 1052
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30 fftw3.info-2: 337333
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31
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32 Tag Table:
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33 (Indirect)
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34 Node: Top1052
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35 Node: Introduction1850
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36 Node: Tutorial8149
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37 Ref: Tutorial-Footnote-19391
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38 Node: Complex One-Dimensional DFTs9485
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39 Node: Complex Multi-Dimensional DFTs15219
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40 Ref: Complex Multi-Dimensional DFTs-Footnote-118645
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41 Node: One-Dimensional DFTs of Real Data18780
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42 Node: Multi-Dimensional DFTs of Real Data23220
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43 Node: More DFTs of Real Data27146
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44 Node: The Halfcomplex-format DFT30643
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45 Node: Real even/odd DFTs (cosine/sine transforms)33252
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46 Ref: Real even/odd DFTs (cosine/sine transforms)-Footnote-138841
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47 Ref: Real even/odd DFTs (cosine/sine transforms)-Footnote-239030
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48 Node: The Discrete Hartley Transform39964
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49 Ref: The Discrete Hartley Transform-Footnote-142146
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50 Node: Other Important Topics42396
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51 Node: SIMD alignment and fftw_malloc42689
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52 Node: Multi-dimensional Array Format44878
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53 Node: Row-major Format45498
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54 Node: Column-major Format47194
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55 Node: Fixed-size Arrays in C48275
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56 Node: Dynamic Arrays in C49711
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57 Node: Dynamic Arrays in C-The Wrong Way51345
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58 Node: Words of Wisdom-Saving Plans53093
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59 Node: Caveats in Using Wisdom55761
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60 Node: FFTW Reference57844
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61 Node: Data Types and Files58332
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62 Node: Complex numbers58764
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63 Node: Precision60502
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64 Node: Memory Allocation62062
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65 Node: Using Plans63627
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66 Node: Basic Interface67652
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67 Ref: Basic Interface-Footnote-168396
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68 Node: Complex DFTs68460
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69 Node: Planner Flags72425
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70 Node: Real-data DFTs77865
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71 Node: Real-data DFT Array Format82854
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72 Node: Real-to-Real Transforms85110
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73 Node: Real-to-Real Transform Kinds89073
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74 Node: Advanced Interface91538
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75 Node: Advanced Complex DFTs92278
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76 Node: Advanced Real-data DFTs96546
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77 Node: Advanced Real-to-real Transforms98874
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78 Node: Guru Interface99979
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79 Node: Interleaved and split arrays100903
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80 Node: Guru vector and transform sizes101942
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81 Node: Guru Complex DFTs104639
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82 Node: Guru Real-data DFTs107475
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83 Node: Guru Real-to-real Transforms110394
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84 Node: 64-bit Guru Interface111713
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85 Node: New-array Execute Functions114028
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86 Node: Wisdom118524
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87 Node: Wisdom Export118883
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88 Node: Wisdom Import120861
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89 Node: Forgetting Wisdom122888
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90 Node: Wisdom Utilities123261
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91 Node: What FFTW Really Computes124623
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92 Node: The 1d Discrete Fourier Transform (DFT)125448
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93 Node: The 1d Real-data DFT126806
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94 Node: 1d Real-even DFTs (DCTs)128470
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95 Node: 1d Real-odd DFTs (DSTs)131671
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96 Node: 1d Discrete Hartley Transforms (DHTs)134607
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97 Node: Multi-dimensional Transforms135283
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98 Node: Multi-threaded FFTW137887
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99 Node: Installation and Supported Hardware/Software139353
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100 Node: Usage of Multi-threaded FFTW141177
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101 Node: How Many Threads to Use?144477
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102 Node: Thread safety145499
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103 Node: Distributed-memory FFTW with MPI148799
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104 Node: FFTW MPI Installation151374
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105 Node: Linking and Initializing MPI FFTW153161
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106 Node: 2d MPI example154384
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107 Node: MPI Data Distribution158609
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108 Node: Basic and advanced distribution interfaces161483
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109 Node: Load balancing165904
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110 Node: Transposed distributions167589
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111 Node: One-dimensional distributions171356
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112 Node: Multi-dimensional MPI DFTs of Real Data173921
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113 Node: Other Multi-dimensional Real-data MPI Transforms178562
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114 Node: FFTW MPI Transposes180735
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115 Node: Basic distributed-transpose interface181575
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116 Node: Advanced distributed-transpose interface183748
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117 Node: An improved replacement for MPI_Alltoall185032
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118 Node: FFTW MPI Wisdom187001
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119 Ref: FFTW MPI Wisdom-Footnote-1189739
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120 Node: Avoiding MPI Deadlocks190653
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121 Node: FFTW MPI Performance Tips191678
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122 Node: Combining MPI and Threads193143
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123 Node: FFTW MPI Reference196606
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124 Node: MPI Files and Data Types197185
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125 Node: MPI Initialization198181
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126 Node: Using MPI Plans199280
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127 Node: MPI Data Distribution Functions201106
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128 Node: MPI Plan Creation206563
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129 Node: MPI Wisdom Communication217239
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130 Node: FFTW MPI Fortran Interface218165
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131 Ref: FFTW MPI Fortran Interface-Footnote-1224188
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132 Node: Calling FFTW from Modern Fortran224596
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133 Node: Overview of Fortran interface225946
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134 Node: Extended and quadruple precision in Fortran229401
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135 Node: Reversing array dimensions230782
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136 Node: FFTW Fortran type reference234313
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137 Node: Plan execution in Fortran238807
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138 Node: Allocating aligned memory in Fortran241690
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139 Node: Accessing the wisdom API from Fortran245052
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140 Node: Wisdom File Export/Import from Fortran245829
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141 Node: Wisdom String Export/Import from Fortran247491
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142 Node: Wisdom Generic Export/Import from Fortran249476
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143 Node: Defining an FFTW module251706
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144 Node: Calling FFTW from Legacy Fortran252777
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145 Node: Fortran-interface routines254334
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146 Ref: Fortran-interface routines-Footnote-1257989
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147 Ref: Fortran-interface routines-Footnote-2258192
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148 Node: FFTW Constants in Fortran258325
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149 Node: FFTW Execution in Fortran259479
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150 Node: Fortran Examples262225
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151 Node: Wisdom of Fortran?265626
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152 Node: Upgrading from FFTW version 2267305
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153 Ref: Upgrading from FFTW version 2-Footnote-1276932
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154 Node: Installation and Customization277115
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155 Node: Installation on Unix278756
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156 Node: Installation on non-Unix systems286833
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157 Node: Cycle Counters289050
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158 Node: Generating your own code290801
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159 Node: Acknowledgments292835
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160 Node: License and Copyright296551
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161 Node: Concept Index298421
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162 Node: Library Index337333
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163
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164 End Tag Table
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