# -*- coding: utf-8 -*-
# (C) Copyright 2020, 2021, 2022, 2023, 2024 IBM. All Rights Reserved.
#
# Licensed under the MIT license. See LICENSE file in the project root for details.
"""Compound configurations presets for resistive processing units."""
# pylint: disable=too-many-instance-attributes
from typing import List
from dataclasses import dataclass, field
from aihwkit.simulator.configs.compounds import OneSidedUnitCell
from aihwkit.simulator.parameters.training import UpdateParameters
from aihwkit.simulator.parameters.io import IOParameters
from aihwkit.simulator.presets.devices import PCMPresetDevice
from aihwkit.simulator.presets.utils import PresetIOParameters, PresetUpdateParameters
[docs]
@dataclass
class PCMPresetUnitCell(OneSidedUnitCell):
"""A unit cell that is comprised of two uni-directional PCM devices of
opposite sign (see :class:`~PCMPresetDevice`).
Check for refresh is performed after each mini-batch update. See
:class:`~aihwkit.simulator.configs.device.OneSidedUnitCell` for
details on the refresh implementation.
"""
unit_cell_devices: List = field(default_factory=lambda: [PCMPresetDevice(), PCMPresetDevice()])
refresh_every: int = 1
units_in_mbatch: bool = True
refresh_forward: IOParameters = field(default_factory=PresetIOParameters)
refresh_update: UpdateParameters = field(
default_factory=lambda: PresetUpdateParameters(desired_bl=31)
)