fix KExpertsMarlin on GPU with out CUDA Graph

ktransformers/optimize/optimize_rules/Moonlight-16B-A3B.yaml

@@ -53,6 +53,17 @@
       generate_op: "KExpertsCPU"
       out_device: "cuda"
   recursive: False # don't recursively inject submodules of this module
+# if want to use more VRAM, use experts Marlin and disable CUDA Graph(disable CUDA Graph may cause low performance)
+#- match:
+#    name: "^model\\.layers\\..*\\.mlp\\.experts$"
+#  replace:
+#    class: ktransformers.operators.experts.KTransformersExperts     # custom MoE Kernel with expert paralleism
+#    kwargs:
+#      prefill_device: "cuda"
+#      prefill_op: "KExpertsTorch"
+#      generate_device: "cuda"
+#      generate_op: "KExpertsMarlin"
+#  recursive: False # don't recursively inject submodules of this module
 - match:
     name: "^model\\.layers\\..*\\.self_attn$"
   replace:

ktransformers/util/custom_gguf.py

@@ -310,6 +310,8 @@ class GGUFLoader:
             values = GGML_DEQUANTIZE[ggml_name](data)
             values = torch.from_numpy(values.copy())
 
+        if ggml_name == "BF16":
+            values = values.view(torch.bfloat16)
         values = values.view(shape[-2::-1])
 
         return values