dtfft-cuda12x — CPU + GPU build for CUDA 12.x [OpenMPI]
Python bindings for dtFFT — a high-performance library for parallel data transpositions and Fast Fourier Transforms via MPI.
This is the
dtfft-cuda12x-openmpivariant. GPU-accelerated transforms via cuFFT on NVIDIA GPUs with CUDA 12.x.
Included backends
| Backend | Available |
|---|---|
| Transpose (MPI) | ✓ |
| FFTW3 | — |
| cuFFT | ✓ |
Installation
pip install dtfft-cuda12x-openmpi
Note: cuFFT and a CUDA 12.x toolkit must be present on the system. CuPy is installed automatically as a dependency.
Requirements
- MPI runtime (OpenMPI or MPICH)
- Python ≥ 3.9
- CUDA 12.x toolkit
- NVIDIA GPU (Volta or newer)
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.
1 maintainer
Metadata
1 maintainer
Release files for dtfft-cuda12x-openmpi 3.2.0
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Built distributions (wheels)
Total release size: 17.5 MB
Release files / dtfft_cuda12x_openmpi-3.2.0-cp314-cp314-manylinux_2_34_x86_64.whl
| Download URL | dtfft_cuda12x_openmpi-3.2.0-cp314-cp314-manylinux_2_34_x86_64.whl |
|---|---|
| Size | 1.5 MB |
| Tags | CPython 3.14 Linux glibc 2.34+ x86-64 |
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