Abstract:
Techniques are disclosed relating to performing Fast Fourier Transforms (FFTs) using distributed processing. In some embodiments, results of local transforms that are performed in parallel by networked processing nodes are scattered across processing nodes in the network and then aggregated. This may transpose the local transforms and store data in the correct placement for performing further local transforms to generate a final FFT result. The disclosed techniques may allow latency of the scattering and aggregating to be hidden behind processing time, in various embodiments, which may greatly reduce the time taken to perform FFT operations on large input data sets.