lib methods can now safely be assigned, no more cryptic errors on missing lib

bitsandbytes/functional.py

@@ -19,102 +19,101 @@ from .cextension import lib
 
 name2qmap = {}
 
-if lib and lib.compiled_with_cuda:
-    """C FUNCTIONS FOR OPTIMIZERS"""
-    str2optimizer32bit = {
-        "adam": (
-            lib.cadam32bit_grad_fp32,
-            lib.cadam32bit_grad_fp16,
-            lib.cadam32bit_grad_bf16,
-        ),
-        "momentum": (
-            lib.cmomentum32bit_grad_32,
-            lib.cmomentum32bit_grad_16,
-        ),
-        "rmsprop": (
-            lib.crmsprop32bit_grad_32,
-            lib.crmsprop32bit_grad_16,
-        ),
-        "lion": (
-            lib.clion32bit_grad_fp32,
-            lib.clion32bit_grad_fp16,
-            lib.clion32bit_grad_bf16,
-        ),
-        "adagrad": (
-            lib.cadagrad32bit_grad_32,
-            lib.cadagrad32bit_grad_16,
-        ),
-        "lamb": (
-            lib.cadam32bit_grad_fp32,
-            lib.cadam32bit_grad_fp16,
-            lib.cadam32bit_grad_bf16,
-        ),
-        "ademamix": (
-            lib.cademamix32bit_grad_fp32,
-            lib.cademamix32bit_grad_fp16,
-            lib.cademamix32bit_grad_bf16,
-        ),
-    }
-
-    str2optimizer8bit = {
-        "adam": (
-            lib.cadam_static_8bit_grad_32,
-            lib.cadam_static_8bit_grad_16,
-        ),
-        "momentum": (
-            lib.cmomentum_static_8bit_grad_32,
-            lib.cmomentum_static_8bit_grad_16,
-        ),
-        "rmsprop": (
-            lib.crmsprop_static_8bit_grad_32,
-            lib.crmsprop_static_8bit_grad_16,
-        ),
-        "lion": (
-            lib.clion_static_8bit_grad_32,
-            lib.clion_static_8bit_grad_16,
-        ),
-        "lamb": (
-            lib.cadam_static_8bit_grad_32,
-            lib.cadam_static_8bit_grad_16,
-        ),
-        "lars": (
-            lib.cmomentum_static_8bit_grad_32,
-            lib.cmomentum_static_8bit_grad_16,
-        ),
-    }
-
-    str2optimizer8bit_blockwise = {
-        "adam": (
-            lib.cadam_8bit_blockwise_grad_fp32,
-            lib.cadam_8bit_blockwise_grad_fp16,
-            lib.cadam_8bit_blockwise_grad_bf16,
-        ),
-        "momentum": (
-            lib.cmomentum_8bit_blockwise_grad_fp32,
-            lib.cmomentum_8bit_blockwise_grad_fp16,
-            lib.cmomentum_8bit_blockwise_grad_bf16,
-        ),
-        "rmsprop": (
-            lib.crmsprop_8bit_blockwise_grad_fp32,
-            lib.crmsprop_8bit_blockwise_grad_fp16,
-            lib.crmsprop_8bit_blockwise_grad_bf16,
-        ),
-        "lion": (
-            lib.clion_8bit_blockwise_grad_fp32,
-            lib.clion_8bit_blockwise_grad_fp16,
-            lib.clion_8bit_blockwise_grad_bf16,
-        ),
-        "adagrad": (
-            lib.cadagrad_8bit_blockwise_grad_fp32,
-            lib.cadagrad_8bit_blockwise_grad_fp16,
-            lib.cadagrad_8bit_blockwise_grad_bf16,
-        ),
-        "ademamix": (
-            lib.cademamix_8bit_blockwise_grad_fp32,
-            lib.cademamix_8bit_blockwise_grad_fp16,
-            lib.cademamix_8bit_blockwise_grad_bf16,
-        ),
-    }
+"""C FUNCTIONS FOR OPTIMIZERS"""
+str2optimizer32bit = {
+    "adam": (
+        lib.cadam32bit_grad_fp32,
+        lib.cadam32bit_grad_fp16,
+        lib.cadam32bit_grad_bf16,
+    ),
+    "momentum": (
+        lib.cmomentum32bit_grad_32,
+        lib.cmomentum32bit_grad_16,
+    ),
+    "rmsprop": (
+        lib.crmsprop32bit_grad_32,
+        lib.crmsprop32bit_grad_16,
+    ),
+    "lion": (
+        lib.clion32bit_grad_fp32,
+        lib.clion32bit_grad_fp16,
+        lib.clion32bit_grad_bf16,
+    ),
+    "adagrad": (
+        lib.cadagrad32bit_grad_32,
+        lib.cadagrad32bit_grad_16,
+    ),
+    "lamb": (
+        lib.cadam32bit_grad_fp32,
+        lib.cadam32bit_grad_fp16,
+        lib.cadam32bit_grad_bf16,
+    ),
+    "ademamix": (
+        lib.cademamix32bit_grad_fp32,
+        lib.cademamix32bit_grad_fp16,
+        lib.cademamix32bit_grad_bf16,
+    ),
+}
+
+str2optimizer8bit = {
+    "adam": (
+        lib.cadam_static_8bit_grad_32,
+        lib.cadam_static_8bit_grad_16,
+    ),
+    "momentum": (
+        lib.cmomentum_static_8bit_grad_32,
+        lib.cmomentum_static_8bit_grad_16,
+    ),
+    "rmsprop": (
+        lib.crmsprop_static_8bit_grad_32,
+        lib.crmsprop_static_8bit_grad_16,
+    ),
+    "lion": (
+        lib.clion_static_8bit_grad_32,
+        lib.clion_static_8bit_grad_16,
+    ),
+    "lamb": (
+        lib.cadam_static_8bit_grad_32,
+        lib.cadam_static_8bit_grad_16,
+    ),
+    "lars": (
+        lib.cmomentum_static_8bit_grad_32,
+        lib.cmomentum_static_8bit_grad_16,
+    ),
+}
+
+str2optimizer8bit_blockwise = {
+    "adam": (
+        lib.cadam_8bit_blockwise_grad_fp32,
+        lib.cadam_8bit_blockwise_grad_fp16,
+        lib.cadam_8bit_blockwise_grad_bf16,
+    ),
+    "momentum": (
+        lib.cmomentum_8bit_blockwise_grad_fp32,
+        lib.cmomentum_8bit_blockwise_grad_fp16,
+        lib.cmomentum_8bit_blockwise_grad_bf16,
+    ),
+    "rmsprop": (
+        lib.crmsprop_8bit_blockwise_grad_fp32,
+        lib.crmsprop_8bit_blockwise_grad_fp16,
+        lib.crmsprop_8bit_blockwise_grad_bf16,
+    ),
+    "lion": (
+        lib.clion_8bit_blockwise_grad_fp32,
+        lib.clion_8bit_blockwise_grad_fp16,
+        lib.clion_8bit_blockwise_grad_bf16,
+    ),
+    "adagrad": (
+        lib.cadagrad_8bit_blockwise_grad_fp32,
+        lib.cadagrad_8bit_blockwise_grad_fp16,
+        lib.cadagrad_8bit_blockwise_grad_bf16,
+    ),
+    "ademamix": (
+        lib.cademamix_8bit_blockwise_grad_fp32,
+        lib.cademamix_8bit_blockwise_grad_fp16,
+        lib.cademamix_8bit_blockwise_grad_bf16,
+    ),
+}
 
 
 class GlobalPageManager: