switch to ERROR_METRIC on failed trials

Signed-off-by: Jeff Ng <[email protected]>

Author: jeffng-or

tools/AutoTuner/src/autotuner/distributed.py

@@ -175,7 +175,7 @@ def evaluate(self, metrics):
         error = "ERR" in metrics.values()
         not_found = "N/A" in metrics.values()
         if error or not_found:
-            return (ERROR_METRIC, "-", "-", "-")
+            return (ERROR_METRIC, ERROR_METRIC, ERROR_METRIC, ERROR_METRIC)
         effective_clk_period = metrics["clk_period"] - metrics["worst_slack"]
         num_drc = metrics["num_drc"]
         gamma = effective_clk_period / 10
@@ -248,7 +248,7 @@ def evaluate(self, metrics):
         error = "ERR" in metrics.values() or "ERR" in reference.values()
         not_found = "N/A" in metrics.values() or "N/A" in reference.values()
         if error or not_found:
-            return (ERROR_METRIC, "-", "-", "-")
+            return (ERROR_METRIC, ERROR_METRIC, ERROR_METRIC, ERROR_METRIC)
         ppa = self.get_ppa(metrics)
         gamma = ppa / 10
         score = ppa * (self.step_ / 100) ** (-1) + (gamma * metrics["num_drc"])