I need to calculate FFTs in java on a server in multiple threads - and
the FFTs must be fast.
As a C-coder I tried the JNI interface to the FFTW3 library , which
works quite nice - however, unfortunately the plan generation of FFTW
is not threadsafe (see e.g. ,,).
Therefore my question: can some Java coder suggest me a fast, thread-
safe FFT library (with or without JNI) ?
There are so many libraries in the internet, but so far they were very
slow or unusable ...
I am happy for any hints !