pnetcdf
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Description:
Parallel netCDF library for scientific data using the OpenMPI library
Type: Formula  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Developer tools
Tags: scientific-computing parallel-io mpi hpc data-format
Install: brew install pnetcdf
About:
PnetCDF (Parallel netCDF) is a high-performance library designed for reading and writing netCDF files in parallel. It leverages the MPI standard to enable concurrent access from multiple processes, significantly accelerating I/O operations for large-scale scientific datasets. This library is fully compatible with the netCDF-3 file format specification.
Key Features:
  • High-performance parallel I/O operations
  • MPI-based communication for scalability
  • Strict compatibility with netCDF-3 format
  • Supports C, Fortran 77, and Fortran 90 APIs
Use Cases:
  • Parallel processing of large-scale climate and weather simulation data
  • High-throughput storage and retrieval of particle physics datasets
  • Accelerating I/O in distributed scientific computing applications
Alternatives:
  • netCDF – Standard netCDF is serial-only, while PnetCDF provides parallel I/O capabilities for distributed systems.
  • HDF5 – HDF5 also supports parallel I/O via MPI-IO but uses a different file format and API.
Version History
Detected Version Rev Change Commit
Sep 16, 2025 5:44pm 0 VERSION_BUMP cf3eca2d
Nov 11, 2024 9:47pm 0 VERSION_BUMP 7118bfe7
Oct 26, 2024 9:51pm 0 VERSION_BUMP 22b0a458
Sep 14, 2024 7:13am 0 VERSION_BUMP bc547473