Fix PD Scorers Configurations

README.md

@@ -59,6 +59,12 @@ export PREFILL_ENABLE_LOAD_AWARE_SCORER=true
 export PREFILL_LOAD_AWARE_SCORER_WEIGHT=1.0
 ```
 
+To enable and configure the prefix aware scorer for prefill, the following environment variables must be configured:
+```
+export PREFILL_ENABLE_PREFIX_AWARE_SCORER=true
+export PREFILL_PREFIX_AWARE_SCORER_WEIGHT=1.0
+```
+
 Decode configuration:
 
 To enable and configure the kv cache scorer for decode, the following environment variables must be configured:
@@ -72,6 +78,12 @@ To enable and configure the load aware scorer for decode, the following environm
 export DECODE_ENABLE_LOAD_AWARE_SCORER=true
 export DECODE_LOAD_AWARE_SCORER_WEIGHT=1.0
 ```
+
+To enable and configure the prefix aware scorer for decode, the following environment variables must be configured:
+```
+export DECODE_ENABLE_PREFIX_AWARE_SCORER=true
+export DECODE_PREFIX_AWARE_SCORER_WEIGHT=1.0
+```
 ---
 [Inference Gateways]:#concepts-and-definitions
 

pkg/epp/scheduling/config_utils.go

@@ -29,13 +29,17 @@ import (
 const (
 	prefillKvCacheScorerEnablementEnvVar   = "PREFILL_ENABLE_KVCACHE_AWARE_SCORER"
 	prefillLoadAwareScorerEnablementEnvVar = "PREFILL_ENABLE_LOAD_AWARE_SCORER"
+	prefillPrefixScorerEnablementEnvVar    = "PREFILL_ENABLE_PREFIX_AWARE_SCORER"
 	decodeKvCacheScorerEnablementEnvVar    = "DECODE_ENABLE_KVCACHE_AWARE_SCORER"
 	decodeLoadAwareScorerEnablementEnvVar  = "DECODE_ENABLE_LOAD_AWARE_SCORER"
+	decodePrefixScorerEnablementEnvVar     = "DECODE_ENABLE_PREFIX_AWARE_SCORER"
 
 	prefillKvCacheScorerWeightEnvVar   = "PREFILL_KVCACHE_AWARE_SCORER_WEIGHT"
 	prefillLoadAwareScorerWeightEnvVar = "PREFILL_LOAD_AWARE_SCORER_WEIGHT"
+	prefillPrefixScorerWeightEnvVar    = "PREFILL_PREFIX_AWARE_SCORER_WEIGHT"
 	decodeKvCacheScorerWeightEnvVar    = "DECODE_KVCACHE_AWARE_SCORER_WEIGHT"
 	decodeLoadAwareScorerWeightEnvVar  = "DECODE_LOAD_AWARE_SCORER_WEIGHT"
+	decodePrefixScorerWeightEnvVar     = "DECODE_PREFIX_AWARE_SCORER_WEIGHT"
 
 	pdEnabledEnvKey = "PD_ENABLED"
 
@@ -46,6 +50,7 @@ const (
 const (
 	loadAwareScorerName    = "LoadAwareScorer"
 	kvCacheAwareScorerName = "KVCacheAwareScorer"
+	prefixAwareScorerName  = "PrefixAwareScorer"
 )
 
 func addScorerByEnvironment(ctx context.Context, config *SchedulerConfig, scorerName string, scorerEnabledEnvKey string, weightEnvKey string, logger logr.Logger) {

pkg/epp/scheduling/pd_config.go

@@ -66,12 +66,20 @@ func init() {
 
 func loadPrefillConfiguration(ctx context.Context, logger logr.Logger) {
 	// add scorers
-	addScorerByEnvironment(ctx, prefillConfig, kvCacheAwareScorerName, kvCacheScorerEnablementEnvVar, kvCacheScorerWeightEnvVar, logger)
-	addScorerByEnvironment(ctx, prefillConfig, loadAwareScorerName, loadAwareScorerEnablementEnvVar, loadAwareScorerWeightEnvVar, logger)
+	addScorerByEnvironment(ctx, prefillConfig, kvCacheAwareScorerName, prefillKvCacheScorerEnablementEnvVar,
+		prefillKvCacheScorerWeightEnvVar, logger)
+	addScorerByEnvironment(ctx, prefillConfig, loadAwareScorerName, prefillLoadAwareScorerEnablementEnvVar,
+		prefillLoadAwareScorerWeightEnvVar, logger)
+	addScorerByEnvironment(ctx, prefillConfig, prefixAwareScorerName, prefillPrefixScorerEnablementEnvVar,
+		prefillPrefixScorerWeightEnvVar, logger)
 }
 
 func loadDecodeConfiguration(ctx context.Context, logger logr.Logger) {
 	// add scorers
-	addScorerByEnvironment(ctx, decodeConfig, kvCacheAwareScorerName, kvCacheScorerEnablementEnvVar, kvCacheScorerWeightEnvVar, logger)
-	addScorerByEnvironment(ctx, decodeConfig, loadAwareScorerName, loadAwareScorerEnablementEnvVar, loadAwareScorerWeightEnvVar, logger)
+	addScorerByEnvironment(ctx, decodeConfig, kvCacheAwareScorerName, decodeKvCacheScorerEnablementEnvVar,
+		decodeKvCacheScorerWeightEnvVar, logger)
+	addScorerByEnvironment(ctx, decodeConfig, loadAwareScorerName, decodeLoadAwareScorerEnablementEnvVar,
+		decodeLoadAwareScorerWeightEnvVar, logger)
+	addScorerByEnvironment(ctx, decodeConfig, prefixAwareScorerName, decodePrefixScorerEnablementEnvVar,
+		decodePrefixScorerWeightEnvVar, logger)
 }