Issues

• Pickle: Mesh points at wrong series after deserializing

  affects latest releasebugfrontend: Python3
  openPMD/openPMD-api#1919 · Filter by author pordyna opened on Jul 16, 2026
  6

• ADIOS2 Engine Used at Runtime

  backend: ADIOS2feature requestfrontend: C++17frontend: Python3
  openPMD/openPMD-api#1913 · Filter by author ax3l opened on Jul 8, 2026 · 0.18.0
  1

• BP4 silently drops attribute-only iterations written through the steps API

  affects latest releasebackend: ADIOS2bug
  openPMD/openPMD-api#1912 · Filter by author ax3l opened on Jul 8, 2026 · 0.17.2
  1

• Conditionally Install CMake CPS Files

  feature requestinstall
  openPMD/openPMD-api#1865 · Filter by author ax3l opened on Mar 23, 2026 · 0.18.0
  

• Overhead with variable-based bp5 series

  affects latest releasebackend: ADIOS2bugperformance
  openPMD/openPMD-api#1859 · Filter by author aeriforme opened on Mar 4, 2026 · 0.18.0
  18

  

• New static assert from pybind11--3.0.2 prevents compilation

  affects latest releasebugfrontend: Python3
  openPMD/openPMD-api#1850 · Filter by author AlexanderSinn opened on Feb 17, 2026
  2

• OpenPMD C API

  discussionfrontend: C99/11
  openPMD/openPMD-api#1848 · Filter by author electronsandstuff opened on Feb 16, 2026
  1

  

• Dataset: ArrayInterface Overload

  feature requestfrontend: Python3good first issue
  openPMD/openPMD-api#1831 · Filter by author ax3l opened on Jan 13, 2026 · 0.18.0
  4

• Examples: Literal Include

  documentationtests
  openPMD/openPMD-api#1822 · Filter by author ax3l opened on Dec 17, 2025 · 0.18.0
  

• Wrong dimensionality of default attributes

  openPMD/openPMD-api#1815 · Filter by author pordyna opened on Dec 5, 2025
  2

• opmd matplotlib.pylab crash (depending on import order)

  bugfrontend: Python3installmachine/system
  openPMD/openPMD-api#1792 · Filter by author pgrete opened on Oct 13, 2025
  13

• Skip PerformPut for BP5

  backend: ADIOS2feature request
  openPMD/openPMD-api#1751 · Filter by author guj opened on Apr 29, 2025 · 0.18.0
  2

  

• Paraview and VisIt readers read the same dataset differently (and both incorrectly)

  bugthird party
  openPMD/openPMD-api#1709 · Filter by author BenWibking opened on Dec 23, 2024
  4

• do data layout transpose internally when reading chunks

  feature request
  openPMD/openPMD-api#1708 · Filter by author BenWibking opened on Dec 23, 2024

• JSON/TOML arguments for all Series constructor arguments

  api: newfeature request
  openPMD/openPMD-api#1685 · Filter by author franzpoeschel opened on Oct 14, 2024
  1

• pip install from source fails due to internal compiler error with gcc 13.2.0 (only on x86-64)

  install
  openPMD/openPMD-api#1665 · Filter by author BenWibking opened on Aug 28, 2024
  1

• Virtual Records (Derived Variables)

  backend: ADIOS2
  openPMD/openPMD-api#1664 · Filter by author ax3l opened on Aug 19, 2024 · 0.18.0

• Python Object Comparison Support

  feature requestfrontend: Python3
  openPMD/openPMD-api#1658 · Filter by author ax3l opened on Aug 5, 2024 · 0.18.0

• file based bp5 writer hang

  affects latest releasebackend: ADIOS2bug
  openPMD/openPMD-api#1655 · Filter by author guj opened on Jul 25, 2024
  5

• Combine multiple files into a single file

  question
  openPMD/openPMD-api#1647 · Filter by author thmihnea opened on Jul 10, 2024
  2

• Performance: Attribute reading in the HDF5 backend is implemented inefficiently

  backend: HDF5
  openPMD/openPMD-api#1639 · Filter by author franzpoeschel opened on Jun 21, 2024

• Wheels: Emscripten/wasm/Pyodide

  continuous integrationfrontend: Python3
  openPMD/openPMD-api#1636 · Filter by author ax3l opened on Jun 14, 2024
  1

• Wheels: ARM64 (Linux/Windows)

  continuous deploymentfrontend: Python3
  openPMD/openPMD-api#1635 · Filter by author ax3l opened on Jun 14, 2024

• set SI units

  question
  openPMD/openPMD-api#1622 · Filter by author rl3418 opened on May 23, 2024
  5

• Simple slicing for chunked data

  question
  openPMD/openPMD-api#1617 · Filter by author pgrete opened on Apr 29, 2024
  1