From 2f8083bd8b084290f888fe59b329d98ebd6dd468 Mon Sep 17 00:00:00 2001 From: Tim Dettmers Date: Sun, 28 Nov 2021 21:18:11 -0800 Subject: Added AdamW. #10 #13 --- bitsandbytes/optim/adamw.py | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 bitsandbytes/optim/adamw.py (limited to 'bitsandbytes/optim/adamw.py') diff --git a/bitsandbytes/optim/adamw.py b/bitsandbytes/optim/adamw.py new file mode 100644 index 0000000..7761f3b --- /dev/null +++ b/bitsandbytes/optim/adamw.py @@ -0,0 +1,29 @@ +# Copyright (c) Facebook, Inc. and its affiliates. +# +# This source code is licensed under the MIT license found in the +# LICENSE file in the root directory of this source tree. +import torch +from bitsandbytes.optim.optimizer import Optimizer2State +import bitsandbytes.functional as F + +class AdamW(Optimizer2State): + def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8, + weight_decay=1e-2, amsgrad=False, optim_bits=32, args=None, + min_8bit_size=4096, percentile_clipping=100, block_wise=True): + super(AdamW, self).__init__('adam', params, lr, betas, eps, + weight_decay, optim_bits, args, min_8bit_size, percentile_clipping, block_wise) + +class AdamW8bit(Optimizer2State): + def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8, + weight_decay=1e-2, amsgrad=False, args=None, + min_8bit_size=4096, percentile_clipping=100, block_wise=True): + super(AdamW8bit, self).__init__('adam', params, lr, betas, eps, + weight_decay, 8, args, min_8bit_size, percentile_clipping, block_wise) + +class AdamW32bit(Optimizer2State): + def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8, + weight_decay=1e-2, amsgrad=False, args=None, + min_8bit_size=4096, percentile_clipping=100, block_wise=True): + super(AdamW32bit, self).__init__('adam', params, lr, betas, eps, + weight_decay, 32, args, min_8bit_size, percentile_clipping, block_wise) + -- cgit v1.2.3