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dtfft-fftw — CPU build with FFTW3 [OpenMPI]

License Documentation PyPI Python

Python bindings for dtFFT — a high-performance library for parallel data transpositions and Fast Fourier Transforms via MPI.

This is the dtfft-fftw-openmpi variant. Includes the FFTW3 FFT backend for CPU transforms.

Included backends

Backend Available
Transpose (MPI) ✓
FFTW3 ✓
cuFFT —

Installation

pip install dtfft-fftw-openmpi

Note: FFTW3 shared libraries must be installed on the system (libfftw3).

Requirements

  • MPI runtime (OpenMPI or MPICH)
  • Python ≥ 3.9
  • FFTW3 (libfftw3-dev on Debian/Ubuntu, fftw via Homebrew)

Quick start

import numpy as np
from mpi4py import MPI
import dtfft

# Create a 3-D complex-to-complex plan
plan = dtfft.PlanC2C([256, 256, 256], comm=MPI.COMM_WORLD)

# Allocate MPI-decomposed buffers
x = plan.get_ndarray(plan.alloc_size)
y = plan.get_ndarray(plan.alloc_size)

x[...] = np.random.random(x.shape) + 1j * np.random.random(x.shape)

# Forward transform  (pencil decomposition applied automatically)
plan.execute(x, y, dtfft.Execute.FORWARD)

# Backward transform
plan.execute(y, x, dtfft.Execute.BACKWARD)

Package variants

Multiple PyPI distributions are provided so you can declare an exact, conflict-free dependency for your environment:

PyPI package FFT backend MPI Platform Extra deps
dtfft-openmpi none (transpose-only) OpenMPI CPU —
dtfft-mpich none (transpose-only) MPICH CPU —
dtfft-fftw-openmpi FFTW3 OpenMPI CPU system libfftw3
dtfft-fftw-mpich FFTW3 MPICH CPU system libfftw3
dtfft-cuda12x-openmpi cuFFT OpenMPI CPU + NVIDIA GPU (CUDA 12) cupy-cuda12x
dtfft-cuda12x-mpich cuFFT MPICH CPU + NVIDIA GPU (CUDA 12) cupy-cuda12x

All packages share the same importable namespace: import dtfft.

Documentation

License

GPL v3 — see LICENSE.

Metadata

Release files for dtfft-fftw-openmpi 3.2.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Built distributions (wheels)

Table of built distributions (wheels) for dtfft-fftw-openmpi 3.2.0
File
dtfft_fftw_openmpi-3.2.0-cp314-cp314-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl CPython 3.14 CPython 3.14 Linux glibc 2.28+ x86-64, Linux glibc 2.24+ x86-64 Details
dtfft_fftw_openmpi-3.2.0-cp314-cp314-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl CPython 3.14 CPython 3.14 Linux glibc 2.24+ ARM64, Linux glibc 2.28+ ARM64 Details
dtfft_fftw_openmpi-3.2.0-cp314-cp314-macosx_11_0_arm64.whl CPython 3.14 CPython 3.14 macOS 11.0+ ARM64 Details
dtfft_fftw_openmpi-3.2.0-cp313-cp313-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl CPython 3.13 CPython 3.13 Linux glibc 2.28+ x86-64, Linux glibc 2.24+ x86-64 Details
dtfft_fftw_openmpi-3.2.0-cp313-cp313-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl CPython 3.13 CPython 3.13 Linux glibc 2.24+ ARM64, Linux glibc 2.28+ ARM64 Details
dtfft_fftw_openmpi-3.2.0-cp313-cp313-macosx_11_0_arm64.whl CPython 3.13 CPython 3.13 macOS 11.0+ ARM64 Details
dtfft_fftw_openmpi-3.2.0-cp312-cp312-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl CPython 3.12 CPython 3.12 Linux glibc 2.24+ x86-64, Linux glibc 2.28+ x86-64 Details
dtfft_fftw_openmpi-3.2.0-cp312-cp312-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl CPython 3.12 CPython 3.12 Linux glibc 2.24+ ARM64, Linux glibc 2.28+ ARM64 Details
dtfft_fftw_openmpi-3.2.0-cp312-cp312-macosx_11_0_arm64.whl CPython 3.12 CPython 3.12 macOS 11.0+ ARM64 Details
dtfft_fftw_openmpi-3.2.0-cp311-cp311-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl CPython 3.11 CPython 3.11 Linux glibc 2.28+ x86-64, Linux glibc 2.24+ x86-64 Details
dtfft_fftw_openmpi-3.2.0-cp311-cp311-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl CPython 3.11 CPython 3.11 Linux glibc 2.24+ ARM64, Linux glibc 2.28+ ARM64 Details
dtfft_fftw_openmpi-3.2.0-cp311-cp311-macosx_11_0_arm64.whl CPython 3.11 CPython 3.11 macOS 11.0+ ARM64 Details
dtfft_fftw_openmpi-3.2.0-cp310-cp310-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl CPython 3.10 CPython 3.10 Linux glibc 2.28+ x86-64, Linux glibc 2.24+ x86-64 Details
dtfft_fftw_openmpi-3.2.0-cp310-cp310-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl CPython 3.10 CPython 3.10 Linux glibc 2.24+ ARM64, Linux glibc 2.28+ ARM64 Details
dtfft_fftw_openmpi-3.2.0-cp310-cp310-macosx_11_0_arm64.whl CPython 3.10 CPython 3.10 macOS 11.0+ ARM64 Details
dtfft_fftw_openmpi-3.2.0-cp39-cp39-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl CPython 3.9 CPython 3.9 Linux glibc 2.28+ x86-64, Linux glibc 2.24+ x86-64 Details
dtfft_fftw_openmpi-3.2.0-cp39-cp39-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl CPython 3.9 CPython 3.9 Linux glibc 2.24+ ARM64, Linux glibc 2.28+ ARM64 Details
dtfft_fftw_openmpi-3.2.0-cp39-cp39-macosx_11_0_arm64.whl CPython 3.9 CPython 3.9 macOS 11.0+ ARM64 Details

Total release size: 22.5 MB

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Release files / dtfft_fftw_openmpi-3.2.0-cp39-cp39-manylinux_2_24_aarch64.manylinux_2_28_aarch64.whl

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