116 lines
2.7 KiB
Python
116 lines
2.7 KiB
Python
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# Copyright (c) Facebook, Inc. and its affiliates.
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#
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# This source code is licensed under the MIT license found in the
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# LICENSE file in the root directory of this source tree.
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from bitsandbytes.optim.optimizer import Optimizer1State
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class Lion(Optimizer1State):
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def __init__(
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self,
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params,
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lr=1e-2,
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alpha=0.99,
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eps=1e-8,
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weight_decay=0,
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momentum=0,
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centered=False,
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optim_bits=32,
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args=None,
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min_8bit_size=4096,
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percentile_clipping=100,
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block_wise=True,
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):
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if alpha == 0:
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raise NotImplementedError(
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"RMSprop with alpha==0.0 is not supported!"
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)
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if centered:
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raise NotImplementedError("Centered RMSprop is not supported!")
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super().__init__(
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"rmsprop",
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params,
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lr,
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(alpha, momentum),
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eps,
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weight_decay,
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optim_bits,
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args,
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min_8bit_size,
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percentile_clipping,
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block_wise,
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)
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class Lion8bit(Optimizer1State):
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def __init__(
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self,
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params,
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lr=1e-2,
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alpha=0.99,
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eps=1e-8,
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weight_decay=0,
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momentum=0,
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centered=False,
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args=None,
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min_8bit_size=4096,
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percentile_clipping=100,
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block_wise=True,
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):
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if alpha == 0:
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raise NotImplementedError(
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"RMSprop with alpha==0.0 is not supported!"
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)
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if centered:
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raise NotImplementedError("Centered RMSprop is not supported!")
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super().__init__(
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"rmsprop",
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params,
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lr,
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(alpha, momentum),
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eps,
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weight_decay,
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8,
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args,
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min_8bit_size,
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percentile_clipping,
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block_wise,
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)
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class Lion32bit(Optimizer1State):
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def __init__(
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self,
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params,
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lr=1e-2,
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alpha=0.99,
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eps=1e-8,
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weight_decay=0,
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momentum=0,
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centered=False,
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args=None,
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min_8bit_size=4096,
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percentile_clipping=100,
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block_wise=True,
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):
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if alpha == 0:
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raise NotImplementedError(
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"RMSprop with alpha==0.0 is not supported!"
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)
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if centered:
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raise NotImplementedError("Centered RMSprop is not supported!")
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super().__init__(
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"rmsprop",
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params,
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lr,
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(alpha, momentum),
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eps,
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weight_decay,
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32,
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args,
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min_8bit_size,
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percentile_clipping,
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block_wise,
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)
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