Fix 0 GPUs bug

Author: kzscisoft

simvue/eco/emissions_monitor.py

@@ -108,7 +108,7 @@ def __init__(self, *args, **kwargs) -> None:
             )
 
         if not isinstance(kwargs.get("thermal_design_power_per_gpu"), float):
-            kwargs["thermal_design_power_per_gpu"] = 80.0
+            kwargs["thermal_design_power_per_gpu"] = 130.0
             _logger.warning(
                 "⚠️  No TDP value provided for current GPUs, will use arbitrary value of 130W."
             )

simvue/metrics.py

@@ -177,8 +177,8 @@ def to_dict(self) -> dict[str, float]:
 
     @property
     def gpu_percent(self) -> float:
-        return sum(m[0] for m in self.gpus) / (len(self.gpus) or 1)
+        return sum(m[0] for m in self.gpus or []) / (len(self.gpus or []) or 1)
 
     @property
     def gpu_memory(self) -> float:
-        return sum(m[1] for m in self.gpus) / (len(self.gpus) or 1)
+        return sum(m[1] for m in self.gpus or []) / (len(self.gpus or []) or 1)