1 files changed, 37 insertions, 0 deletions
diff --git a/bitsandbytes/optim/rmsprop.py b/bitsandbytes/optim/rmsprop.py
new file mode 100644
index 0000000..99b718e
--- /dev/null
+++ b/bitsandbytes/optim/rmsprop.py
@@ -0,0 +1,37 @@
+# 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 Optimizer1State
+
+class RMSprop(Optimizer1State):
+    def __init__(self, params, lr=1e-2, alpha=0.99, eps=1e-8, weight_decay=0, momentum=0, centered=False, optim_bits=32, args=None,
+            min_8bit_size=4096, percentile_clipping=100, block_wise=True):
+        if alpha == 0:
+            raise NotImplementError(f'RMSprop with alpha==0.0 is not supported!')
+        if centered:
+            raise NotImplementError(f'Centered RMSprop is not supported!')
+        super(RMSprop, self).__init__('rmsprop', params, lr, (alpha, momentum), eps,
+                weight_decay, optim_bits, args, min_8bit_size, percentile_clipping, block_wise)
+
+class RMSprop8bit(Optimizer1State):
+    def __init__(self, params, lr=1e-2, alpha=0.99, eps=1e-8, weight_decay=0, momentum=0, centered=False, args=None,
+            min_8bit_size=4096, percentile_clipping=100, block_wise=True):
+        if alpha == 0:
+            raise NotImplementError(f'RMSprop with alpha==0.0 is not supported!')
+        if centered:
+            raise NotImplementError(f'Centered RMSprop is not supported!')
+        super(RMSprop8bit, self).__init__('rmsprop', params, lr, (alpha, momentum), eps,
+                weight_decay, 8, args, min_8bit_size, percentile_clipping, block_wise)
+
+class RMSprop32bit(Optimizer1State):
+    def __init__(self, params, lr=1e-2, alpha=0.99, eps=1e-8, weight_decay=0, momentum=0, centered=False, args=None,
+            min_8bit_size=4096, percentile_clipping=100, block_wise=True):
+
+        if alpha == 0:
+            raise NotImplementError(f'RMSprop with alpha==0.0 is not supported!')
+        if centered:
+            raise NotImplementError(f'Centered RMSprop is not supported!')
+        super(RMSprop32bit, self).__init__('rmsprop', params, lr, (alpha, momentum), eps,
+                weight_decay, 32, args, min_8bit_size, percentile_clipping, block_wise)