Deprecated

Features deprecated in v3.x may be removed in a future v4.0.0 release.

HOOMD may issue FutureWarning messages to provide warnings for breaking changes in the next major release. Use Python’s warnings module to silence warnings which may not be correctable until the next major release. Use this filter: ignore::FutureWarning:hoomd. See Python’s warnings documentation for more information on warning filters.

Note

Where noted, suggested replacements will be first available with v4.0.0 and there will be no releases with overlapping support for the two APIs.

v3.x

• Particle diameters (since v3.0.0).

  • Use potentials such as md.pair.ExpandedLJ.

• hoomd.md.pair.aniso.ALJ.mode parameter (since v3.1.0).

  • mode has no effect since v3.0.0.

• hoomd.md.pair.aniso.Dipole.mode parameter (since v3.1.0)

  • mode has no effect since v3.0.0.

• hoomd.device.GPU.memory_traceback parameter (since v3.4.0)

  • memory_traceback has no effect since v3.0.0.

• hoomd.md.dihedral.Harmonic (since v3.7.0).

  • Use hoomd.md.dihedral.Periodic.

• ENABLE_MPI_CUDA CMake option (since v3.7.0).

• fix_cudart_rpath CMake macro (since v3.7.0).

• charges key in Rigid.body (since v3.7.0).

  • Pass charges to Rigid.create_bodies or set in system state.

• diameters key in Rigid.body (since v3.7.0).

  • Set diameters in system state.

• hoomd.md.methods.NVE (since v3.8.0).

  • Use hoomd.md.methods.ConstantVolume with thermostat=None (available in >=4.0.0).

• hoomd.md.methods.NVT (since v3.8.0).

  • Use hoomd.md.methods.ConstantVolume with a hoomd.md.methods.thermostats.MTTK thermostat (available in >=4.0.0).

• hoomd.md.methods.Berendsen (since v3.8.0).

  • Use hoomd.md.methods.ConstantVolume with a hoomd.md.methods.thermostats.Berendsen thermostat (available in >=4.0.0).

• hoomd.md.methods.NPH (since v3.8.0).

  • Use hoomd.md.methods.ConstantPressure` with ``thermostat=None (available in >=4.0.0).

• hoomd.md.methods.NPT (since v3.8.0).

  • Use hoomd.md.methods.ConstantPressure with a hoomd.md.methods.thermostats.MTTK thermostat (available in >=4.0.0).

• log attribute and constructor parameter in hoomd.write.GSD.

  • Use logger.