From 2f8083bd8b084290f888fe59b329d98ebd6dd468 Mon Sep 17 00:00:00 2001
From: Tim Dettmers <tim.dettmers@gmail.com>
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)
+
--
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