cuFFTAdvisor

Tool for generating optimal setting of the cuFFT library.

This tool is able to:

• benchmark some transformation.
• run fast heuristics which will recommend faster settings, using either padding or cropping.
• autotune the heuristics proposals and thus obtainign the best setting possible

Publication

David Střelák and Jiří Filipovič. 2018. Performance analysis and autotuning setup of the cuFFT library. In Proceedings of the 2nd Workshop on AutotuniNg and aDaptivity AppRoaches for Energy efficient HPC Systems (ANDARE '18). ACM, New York, NY, USA, Article 1, 6 pages. DOI: https://doi.org/10.1145/3295816.3295817

Build

Simply run make in the root directory. Make sure that you have NVCC and Cuda libraries in the PATH

Example

./build/cuFFTAdvisor -help

./build/cuFFTAdvisor -benchmark -device 0 -x 85 -y 1

./build/cuFFTAdvisor -recommend 30 -x 2273 -y 2273 -n 6 --outOfPlaceOnly --realOnly --floatOnly --batchOnly --forwardOnly --maxSignalInc 10

./build/cuFFTAdvisor -find 20 -x 445105 -n 5 --inPlaceOnly --complexOnly --doubleOnly --forwardOnly

Known limitations

Internal heuristics is based on Cuda v.8, so it might not be very accurate for other versions.