omnisolver.pt.sampler#

Dimod-compatible PT sampler.

Module Contents#

Classes#

PTSampler

Parallel tempering samplers.
class omnisolver.pt.sampler.PTSampler#

Bases: dimod.Sampler

Parallel tempering samplers.

property parameters#

Parameters as a dict, where keys are keyword parameters accepted by the sampler methods and values are lists of the properties relevent to each parameter.

property properties#

Properties as a dict containing any additional information about the sampler.

sample_ising(h, J, num_replicas=10, num_pt_steps=100, num_sweeps=100, beta_min=0.01, beta_max=1.0, **parameters)#

Solve given Ising problem.

Parameters:

  • h – dictionary of biases.

  • J – dictionary of couplings.

  • num_replicas – number of system replicas.

  • num_pt_steps – number of parallel tempering steps.

  • num_sweeps – number of Monte Carlo sweeps per parallel tempering step.

  • beta_min – inverse temperature of the hottest replica.

  • beta_max – inverse temperature of the coldest replica.

Returns:

single-element sample set with the best solution found.