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arxiv: 0810.3203 · v1 · submitted 2008-10-17 · 💻 cs.SC · cs.DS

A cache-friendly truncated FFT

classification 💻 cs.SC cs.DS
keywords truncatedcache-friendlydescribealgorithmarisingcasecoefficientsexamine
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We describe a cache-friendly version of van der Hoeven's truncated FFT and inverse truncated FFT, focusing on the case of `large' coefficients, such as those arising in the Schonhage--Strassen algorithm for multiplication in Z[x]. We describe two implementations and examine their performance.

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