fftMPI, a library for performing 2d and 3d FFTs in parallel

Software · Wed Apr 25 00:00:00 EDT 2018

DOI:https://doi.org/10.11578/dc.20201001.68· OSTI ID:1457552 · Code ID:45665

Plimpton, Steven ^[1]; Kohlmeyer, Axel ^[2]; Coffman, Paul ^[3]; Blood, Phil ^[4]

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1. Sandia National Laboratories
2. Temple University
3. Argonne Leadership Computing Facility
4. Pittsburgh Supercomputing Center

The fftMPI library enables two and three dimensional Fast Fourier Transforms (FFTs) to be performed efficiently in parallel on a variety of platforms from desktop machines to supercomputers. It allows for flexibility in the initial distribution of the FFT grid across processors, as well as the final output. It handles the data communication and reordering necessary to perform multi-dimensional FFTs in parallel. It relies on open-source or vendor-provided libraries to perform one dimensional FFTs on a single processor. It uses MPI for inter-processor communication, which is a standard distributed memory message-passing library.

• Short Name / Acronym: fftMPI
• Project Type: Open Source, No Publicly Available Repository
• Site Accession Number: SCR#2298; 7966
• Software Type: Scientific
• License(s): Other
• Programming Language(s): The CSlib can be used from programs written in C++, C, Fortran, or Python.
• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE

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  Primary Award/Contract Number:

  NA0003525
• DOE Contract Number: NA0003525
• Code ID: 45665
• OSTI ID: 1457552
• Country of Origin: United States