Track top k nodes by norm score rather than top k nodes per scorer

api/allocations.go

@@ -112,14 +112,15 @@ type AllocationMetric struct {
 	Scores             map[string]float64
 	AllocationTime     time.Duration
 	CoalescedFailures  int
-	ScoreMetaData      map[string][]*NodeScoreMeta
+	ScoreMetaData      []*NodeScoreMeta
 }
 
 // NodeScoreMeta is used to serialize node scoring metadata
 // displayed in the CLI during verbose mode
 type NodeScoreMeta struct {
-	NodeID string
-	Score  float64
+	NodeID    string
+	Scores    map[string]float64
+	NormScore float64
 }
 
 // AllocationListStub is used to return a subset of an allocation