I am getting the following error while trying to compile a Fortran program with gfortran and FFTW3 library. The program however compiles successfully ...
I am getting the following error while trying to compile a Fortran program with gfortran and FFTW3 library. The program however compiles successfully ...
I'm trying to use the fftw-3 library in a C++ project on an M1 Mac (OS version Monterey). Both the fftw-3 lib and clang were installed via Macports. ...
I'm using FFTW's wisdom feature to speed up my FFTs and it's working well. Next I'd like to enable FFTW threading using OMP to achieve an additional s ...
I would like to perform both r2c and c2r in-place FFT's of a 3D array using the FFTW3 library. The array is of size (Nx,Ny,Nz+2) just enough to store ...
I used FFTW to calculate FFT of a complex vector . the std::vector<std::complex<double>> successfully converted to fftw_complex array , bu ...
Using fftw_plan_many_dft I can do transforms along x,y and y,z axis: vector<complex<float_type>> yz_fft(vector<complex<float_type&g ...
I have tried to add -l to qt, add library to VS, load lib manually, but I still don't know how to make it work. ...
I'm trying to install fftw-2.1.5 as it is required by the GADGET3 code version I need to use. I had no issues building it on my Linux machine (running ...
I have the MATLAB code: This gives the following output: And the C++ code using FFTW: This give the output: Why are these two results are ...
I am currently working on a problem that involves calculating the Fourier Transform of a 2-dimensional Matrix using FFTW in conjunction with MPI. Acc ...
Looking through ncmpcpp's spectrum visualizer code, I found a method that generates a "logspace," a vector used to group frequencies into log-scaled b ...
I am trying to switch my code and start using Eigen library in C++ since I have heard it is really good with matrices. Now my old C++ code used mostly ...
I'm trying to learn how to use the FFTW library with Eigen. I don't want to use Eigen's unsupported module since I'd eventually like to incorporate FF ...
Calculate fft with 16GB memory,cause memory exhausted. Output as below: How to calculate fft of large size data ,with existing python package? ...
I have current test code I am trying to perform some computation. StopWatch shared performance for each iteration around : 300 ms, which is bad per ...
I would like to ask for your help to compile a .f90 program that uses fftw3 (I am just learning Fortran and I got the code from someone else). When I ...
Basis I have installed FFTW in my system manually by using ./configure, make commands the procedure mentioned in the website using some flags. I do ...
I'm trying to install wholebrain by Daniel Fürth, following the instructions on the macosX install page (available here). I am running MacOS Big Sur 1 ...
For example, if I compile FFTW with AVX2 support and run it in a machine that only have SSE3, would it check and use SSE3 instructions, or just crash ...
For a project I need to propagate a gaussian in real space using the Fourier transform of a gaussian centered at the origin using What I want to calc ...