#2382: ccm-lb: another optimization

lifflander · lifflander · commit dc55d2c3a0e0 · 2024-12-23T14:20:24.000-08:00
diff --git a/src/vt/vrt/collection/balance/temperedlb/temperedlb.cc b/src/vt/vrt/collection/balance/temperedlb/temperedlb.cc
@@ -1213,7 +1213,9 @@ void TemperedLB::doLBStages(LoadType start_imb) {
           vtAbort("This should never be possible to go over the threshold\n");
         }
 
-        computeClusterSummary();
+        if (iter_ == 0) {
+          computeClusterSummary();
+        }
 
         // Verbose printing about local clusters
         for (auto const& [shared_id, cluster_info] : cur_clusters_) {

Original file line number	Diff line number	Diff line change
`@@ -1213,7 +1213,9 @@ void TemperedLB::doLBStages(LoadType start_imb) {`
`1213`	`1213`	`vtAbort("This should never be possible to go over the threshold\n");`
`1214`	`1214`	`}`
`1215`	`1215`
`1216`		`- computeClusterSummary();`
	`1216`	`+ if (iter_ == 0) {`
	`1217`	`+ computeClusterSummary();`
	`1218`	`+ }`
`1217`	`1219`
`1218`	`1220`	`// Verbose printing about local clusters`
`1219`	`1221`	`for (auto const& [shared_id, cluster_info] : cur_clusters_) {`