Add a CPU-only build option

1 files changed, 8 insertions, 3 deletions

diff --git a/bitsandbytes/__init__.py b/bitsandbytes/__init__.py
index 6e29322..22fb841 100644
--- a/bitsandbytes/__init__.py
+++ b/bitsandbytes/__init__.py
@@ -2,9 +2,14 @@
 #   
 # This source code is licensed under the MIT license found in the 
 # LICENSE file in the root directory of this source tree.
-from .optim import adam
+
 from .nn import modules
-__pdoc__ = {'libBitsNBytes' : False,
+from cextension import COMPILED_WITH_CUDA
+
+if COMPILED_WITH_CUDA:
+    from .optim import adam
+
+__pdoc__ = {'libBitsNBytes': False,
             'optim.optimizer.Optimizer8bit': False,
             'optim.optimizer.MockArgs': False
-           }
+            }