Added analysis Adam.

BUCK

-prebuilt_python_library(
-  name = 'bnb-cuda102',
-  binary_src = ':bnb-cuda102-wheel',
-)
-
-
-remote_file(
-  name = 'bnb-cuda102-wheel',
-  url = 'https://test-files.pythonhosted.org/packages/4e/69/025b08bf1b7e777ca3800dc79ebe9dfd7309931f0a5f3de132d1433076ff/bitsandbytes_cuda102-0.0.22-py3-none-any.whl',
-  sha1 = '8c89e640afab18cdc6b7c5924c70e25036811686',
-  )
-
-
-prebuilt_python_library(
-  name = 'bnb-cuda111',
-  binary_src = ':bnb-cuda111-wheel',
-)
-
-
-remote_file(
-  name = 'bnb-cuda111-wheel',
-  url = 'https://test-files.pythonhosted.org/packages/f9/38/2179701c80ae2aa9606bce7d498f397bd94e7bb2ff7e7c30ed032a3a39c2/bitsandbytes_cuda111-0.0.22-py3-none-any.whl',
-  sha1 = '433f534b225bc29391782c8a9d82635bc0eb9d33',
-  )
-

bitsandbytes/optim/adam.py

@@ -3,6 +3,7 @@
 # This source code is licensed under the MIT license found in the 
 # LICENSE file in the root directory of this source tree.
 from bitsandbytes.optim.optimizer import Optimizer2State
+import bitsandbytes.functional as F
 
 class Adam(Optimizer2State):
     def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8,
@@ -28,7 +29,7 @@ class Adam32bit(Optimizer2State):
 
 
 class AnalysisAdam(torch.optim.Optimizer):
-    """Implements 8-bit Adam and performs error analysis.
+    """Adam that performs 8-bit vs 32-bit error analysis.
 
     This implementation is modified from torch.optim.Adam based on:
     `Fixed Weight Decay Regularization in Adam`
@@ -190,6 +191,11 @@ class AnalysisAdam(torch.optim.Optimizer):
                         state1 = F.dequantize_no_absmax(C1, code1)
                         C2 = F.quantize_no_absmax(exp_avg_sq, code=code2)
                         state2 = F.dequantize_no_absmax(C2, code2)
+                    elif self.analysis == 'my-quantization-routine':
+                        # 1. get code
+                        # 2. quantize
+                        # 3. dequantize
+                        # Error will be calculated automatically!
                     else:
                         raise ValueError(f'Invalid analysis value: {self.analysis}!')