Some issue on Finufft installation for Windows

[hosein9112400382]

Dear friends,
For the past 7-10 days, I have been facing a problem with installing the FINUFFT package on my operating system (I encountered a similar issue with the FFTW package). I have followed the instructions in the FINUFFT documentation but have not had any success in installing it. Furthermore, I have searched GitHub for any pre-compiled MEX files that could resolve this issue in the MATLAB environment. Unfortunately, the MEX files available online have not worked on my system.
I would be very grateful if you could provide me with MEX files that are compatible with my system requirements, or guide me on how to generate them.
Below are my system details:

=== System Information for FINUFFT MEX File ===
MATLAB Version: 9.8.0.1323502 (R2020a)
Release: R2020a
Architecture: win64
OS: PCWIN64
--- Compiler Information ---
MEX configured to use 'MinGW64 Compiler (C++)' for C++ language compilation.

Thank you again for your attention and support.

[lu1and10]

Hi @hosein9112400382

I happen to have a Matlab version 9.8.0.1873465 (R2020a) installed on my old windows machine
I'm able to make a finufft mex file in the following link, not sure if it works on your machine. You may try:
https://drive.google.com/file/d/1b1F8kNllPH1K61DCTY6k8yLuIDZYXZF8/view

In the meanwhile, we are about to merge the cmake PR #721, you may also want to give a try @DiamonDinoia fork branch https://github.com/DiamonDinoia/finufft/tree/attempt-to-clean-cmake to see if cmake build for matlab works for you or not, you will need cmake version 3.24/above, and make sure cmake can find your matlab install environment and matlab mex is setup with msvc compiler(we haven't test which cmake mex builder with mingw64, you could give a try).

[hosein9112400382]

Hi @lu1and10
Thank you for your guidance,
After following the instructions provided in the first three lines of your response, I encountered an unexpected error which I will detail below:
Steps Taken:

1. Downloaded the windowedFourierProjection project from this address.
2. Since this project depends on the finufft1d1.m function, I downloaded the matlab folder from the main finufft package from the main repository and placed it in the following path:
   …\Test1\windowedFourierProjection\wfp_1Dspringscattering
3. Added the finufft.mexw64 file you shared via the Google Drive link to the matlab folder and included the path to MATLAB using the addpath command.
4. Executed the main.m file in the project.
   Error Description:
   • The code executed without issues until reaching the finufft1d1.m function.
   • At line 53 of this function, the command p = finufft_plan(1,ms,isign,n_transf,eps,o);
   was called.
   • This command executed successfully, and even lines 236 to 264 - which make multiple calls to finufft.mexw64 - ran without any errors.
   • However, immediately after executing line 265, MATLAB suddenly crashed and closed.
   This line:
   mex_id_ = 'c o int = finufft_makeplan(c i int, c i int, c i int64_t[x], c i int, c i int, c i double, c i finufft_plan*, c i finufft_opts*)';
   ---> [ier] = finufft(mex_id_, type, dim, n_modes, iflag, n_trans, tol, plan, o, 3);%% <--- error has been occurred in this line (265)
   else
   • The matlab_crash_dump.7992-1 file was also generated as an error report, which I've attached to this post.
   I performed this test on several systems with different CPU architectures and different versions of MATLAB, but encountered the same error in all cases.
   Have I made any mistakes in the process of using the finufft.mexw64 file?
   I will also soon follow up on the additional guidance you mentioned in the latter part of your response.
   Thank you very much for the time you've taken to review this issue.
   Best regards,
   Hosein
   matlab_crash_dump.zip

[lu1and10]

Hi @hosein9112400382

It seems that you are on avx machines? I generated the mex with avx2.
Following is an avx instruction mex file, you may try and see if it works:
https://drive.google.com/file/d/1LMsmfvDRwJukkmD4XFXtYC0tWgLwRMmT/view?usp=drive_link

If you switch to newer cpus, building from scratch may improve your speed. I recommend try the new cmake system as in my previous message to build mex file on windows and let us know if the cmake build mex file works for you.

[hosein9112400382]

Dear @lu1and10,

Thank you so much for your help. My project is now working perfectly with the new MEX file you provided.
You saved me a tremendous amount of time and effort—I truly appreciate it.
Best regards.