? Department of Computer Science, School of Mathematical Sciences, Tel-Aviv University, Tel-Aviv 69978, Israel
? Science and Technology, IBM Israel Ltd, Technion city, Haifa 32000, Israel
Abstract:
In this paper we present a parallelization of the Cooley- Tukey FFT algorithm that is implemented on a shared-memory MIMD (non-vector) machine that was built in the Dept. of Computer Science, Tel Aviv University. A parallel algorithm is presented for one dimension Fourier transform with performance analysis. For a large array of complex numbers to be transformed, an almost linear speed-up is demonstrated. This algorithm can be executed by any number of processors, but generally the number is much less than the length of the input data.