create stub folder that contains a minimal example on how to use rocfft

[psteinb]

Summary of proposed changes:

• create a folder samples insides the docs
• samples contains examples for clients to rocfft (which doesn't depend on boost, fftw, ...)
• added minimal documentation on how to compile the sample

[psteinb]

I looked at the matter a bit more. with that install.sh script in place, it's really hard to find out how rocfft can be used in a client project. As mentioned in the references, I am having a hard time building a client application that uses rocfft. I am currently using rocfft from the rocm 1.9 repos and am not getting anywhere the last 2 days. I'd appreciate any help.

[bragadeesh]

Thanks for this contribution, need to look at it
What part are you having trouble with? After you make rocfft package with build (or get it from github or radeon repo) and installed in the system, are you not able to use it?

[psteinb]

what I ultimately would want, is a simple cmake snippet or example on how to compile a client to rocfft.

[psteinb]

The install.sh simply obfuscated to me how I could easily use rocfft in my benchmark. CUDA does yield the samples which can provide simple documentation on how to use specific libraries. I simply miss that with rocfft. NB. I am using rocfft from the rocm repos.

[bragadeesh]

Understand; is the sample you are contributing now works on your side ok?
Other than the confusing install.sh, any other issues?

[psteinb]

Understand; is the sample you are contributing now works on your side ok?

yes it does. Would love to see something alike for running on nvidia etc. So that people that want to use rocfft, have a clear and easy start without the baggage of boost, gtest and fftw.

Other than the confusing install.sh, any other issues?

Nope, I am in the process of integrating rocfft into [gearshifft](mpicbg-scicomp/gearshifft#126)