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The Trick CheckPointWriter is a C++ Class that implements checkpointing.
Checkpointing
# Save a checkpoint before the initialization jobs execute. default False
trick.checkpoint_pre_init(True|False)
# Save a checkpoint after the initialization jobs execute. default False
trick.checkpoint_post_init(True|False)
# Save a checkpoint when the simulation ends. default False
trick.checkpoint_end(True|False)
# Save a checkpoint at a time in the future
trick.checkpoint(<time>)
# Save a checkpoint now
trick.checkpoint()
# Set the CPU to use for checkpoints
trick.checkpoint_cpu(<cpu_num>)
# Save a checkpoint periodically during simulation execution. default False
trick.checkpoint_safestore_set_enabled(True|False)
# Set the safestore checkpoint period. default 9x10e18
trick.checkpoint_safestore(<period>)
# Load a checkpoint
trick.load_checkpoint(<filename>)
# Load a checkpoint without restoring STLs
trick.load_checkpoint(<filename>, False)