empty list indicates no available GPU types

Author: ngc92

src/discord-cluster-manager/api/main.py

@@ -442,16 +442,11 @@ async def get_gpus(leaderboard_name: str, db_context=Depends(get_db)) -> list[st
             if leaderboard_name not in leaderboard_names:
                 raise HTTPException(status_code=400, detail="Invalid leaderboard name")
 
-            gpu_types = db.get_leaderboard_gpu_types(leaderboard_name)
-            if gpu_types is None:  # Handle case where function returns None
-                return []
+            return db.get_leaderboard_gpu_types(leaderboard_name)
 
     except Exception as e:
         raise HTTPException(status_code=500, detail=f"Error fetching GPU data: {e}") from e
 
-    # Filter based on known runners
-    return gpu_types
-
 
 @app.get("/submissions/{leaderboard_name}/{gpu_name}")
 async def get_submissions(

src/discord-cluster-manager/leaderboard_db.py

@@ -368,7 +368,7 @@ def get_leaderboards(self) -> list["LeaderboardItem"]:
 
         return leaderboards
 
-    def get_leaderboard_gpu_types(self, leaderboard_name: str) -> List[str] | None:
+    def get_leaderboard_gpu_types(self, leaderboard_name: str) -> List[str]:
         self.cursor.execute(
             """
             SELECT *
@@ -382,12 +382,7 @@ def get_leaderboard_gpu_types(self, leaderboard_name: str) -> List[str] | None:
             (leaderboard_name,),
         )
 
-        gpu_types = [x[1] for x in self.cursor.fetchall()]
-
-        if gpu_types:
-            return gpu_types
-        else:
-            return None
+        return [x[1] for x in self.cursor.fetchall()]
 
     def get_leaderboard(self, leaderboard_name: str) -> "LeaderboardItem":
         self.cursor.execute(

src/discord-cluster-manager/submission.py

@@ -97,7 +97,7 @@ def get_avail_gpus(leaderboard: str, lb_db: LeaderboardDB):
         gpus = db.get_leaderboard_gpu_types(leaderboard)
 
     if len(gpus) == 0:
-        raise KernelBotError("❌ No available GPUs for Leaderboard " + f"`{leaderboard}`.")
+        raise KernelBotError(f"❌ No available GPUs for Leaderboard `{leaderboard}`.")
 
     return gpus