Merge pull request #684 from KMSorSMS/main

fix dockerfile in devcontainer and fix expert torch

.devcontainer/Dockerfile

@@ -10,7 +10,6 @@ apt update -y &&  apt install -y  --no-install-recommends \
     g++ \
     cmake && 
 rm -rf /var/lib/apt/lists/* &&
-cd ktransformers &&
 pip install ninja pyproject numpy cpufeature &&
 pip install flash-attn &&
 cp /usr/lib/x86_64-linux-gnu/libstdc++.so.6 /opt/conda/lib/

ktransformers/operators/experts.py

@@ -459,9 +459,9 @@ class KExpertsTorch(KExpertsBase):
                     self.up[i] = w["up"][i, ...].to(device=device, dtype=self.dtype)
                     self.down[i] = w["down"][i, ...].to(device=device, dtype=self.dtype)
         
-        self.up = torch.cat(self.up, dim=0)
-        self.gate = torch.cat(self.gate, dim=0)
-        self.down = torch.cat(self.down, dim=0)
+        self.up = torch.stack(self.up, dim=0)
+        self.gate = torch.stack(self.gate, dim=0)
+        self.down = torch.stack(self.down, dim=0)
         return 
 
     def unload(self):