triqs_modest.utils.checkpoint.Checkpointer.append

Checkpointer.append(iteration_data, **extras) → None[source]

Append an iteration to the checkpoint.

Safe on all MPI ranks — non-master ranks are silently skipped.

Parameters:

iteration_dataIterationData: Required restart data: mu, Sigma_imp_list, Sigma_hartree_list.
**extras: Additional named quantities written to the same HDF5 group via HDFArchive. Supports any TRIQS-serializable type (block_gf, matrix, scalar, etc.).