#2452: temperedlb: add rank-based alpha from file read in

[lifflander]

Fixes #2452

[github-actions]

clang-format output for this changeset:

diff --git a/src/vt/vrt/collection/balance/temperedlb/temperedlb.cc b/src/vt/vrt/collection/balance/temperedlb/temperedlb.cc
index 4b4906754..be4791e1c 100644
--- a/src/vt/vrt/collection/balance/temperedlb/temperedlb.cc
+++ b/src/vt/vrt/collection/balance/temperedlb/temperedlb.cc
@@ -522,15 +522,16 @@ std::tuple<std::string, int, int> TemperedLB::getNodeRank() {
   MPI_Get_processor_name(hostname, &hostname_len);
 
   MPI_Comm shared_comm;
-  MPI_Comm_split_type(world_comm, MPI_COMM_TYPE_SHARED, 0, MPI_INFO_NULL, &shared_comm);
+  MPI_Comm_split_type(
+    world_comm, MPI_COMM_TYPE_SHARED, 0, MPI_INFO_NULL, &shared_comm
+  );
 
   int shared_rank = -1, shared_size = -1;
   MPI_Comm_rank(shared_comm, &shared_rank);
   MPI_Comm_size(shared_comm, &shared_size);
 
   vt_debug_print(
-    verbose, temperedlb,
-    "hostname: {}, global rank: {}, local rank: {}\n",
+    verbose, temperedlb, "hostname: {}, global rank: {}, local rank: {}\n",
     hostname, world_rank, shared_rank
   );
 
@@ -558,10 +559,8 @@ void TemperedLB::readAlphaFromFile() {
         if (file_hostname == hostname and shared_rank == file_shared_rank) {
           alpha = rank_alpha;
           vt_debug_print(
-            verbose, temperedlb,
-            "For rank {}, setting alpha to {}\n",
-            theContext()->getNode(),
-            alpha
+            verbose, temperedlb, "For rank {}, setting alpha to {}\n",
+            theContext()->getNode(), alpha
           );
           break;
         }
@@ -1236,8 +1235,12 @@ void TemperedLB::doLBStages(LoadType start_imb) {
           // Perform the reduction for Rank_load_modeled -> processor load only
           proxy_.allreduce<&TemperedLB::workStatsHandler, collective::PlusOp>(
             std::vector<balance::LoadData>{
-              {balance::LoadData{Statistic::Rank_load_modeled, this_new_load_ * alpha}},
-              {balance::LoadData{Statistic::Rank_strategy_specific_load_modeled, this_new_work_}}
+              {balance::LoadData{
+                Statistic::Rank_load_modeled, this_new_load_ * alpha
+              }},
+              {balance::LoadData{
+                Statistic::Rank_strategy_specific_load_modeled, this_new_work_
+              }}
             }
           );
         });
@@ -1367,8 +1370,12 @@ void TemperedLB::doLBStages(LoadType start_imb) {
           // Perform the reduction for Rank_load_modeled -> processor load only
           proxy_.allreduce<&TemperedLB::loadStatsHandler, collective::PlusOp>(
             std::vector<balance::LoadData>{
-              {balance::LoadData{Statistic::Rank_load_modeled, this_new_load_ * alpha}},
-              {balance::LoadData{Statistic::Rank_strategy_specific_load_modeled, this_new_work_}}
+              {balance::LoadData{
+                Statistic::Rank_load_modeled, this_new_load_ * alpha
+              }},
+              {balance::LoadData{
+                Statistic::Rank_strategy_specific_load_modeled, this_new_work_
+              }}
             }
           );
         });
@@ -1702,9 +1709,12 @@ void TemperedLB::propagateRound(uint8_t k_cur, bool sync, EpochType epoch) {
       }
       NodeInfo info{
         alpha,
-        this_new_load_, this_new_work_,
-        this_new_breakdown_.inter_send_vol, this_new_breakdown_.inter_recv_vol,
-        this_new_breakdown_.intra_send_vol, this_new_breakdown_.intra_recv_vol,
+        this_new_load_,
+        this_new_work_,
+        this_new_breakdown_.inter_send_vol,
+        this_new_breakdown_.inter_recv_vol,
+        this_new_breakdown_.intra_send_vol,
+        this_new_breakdown_.intra_recv_vol,
         this_new_breakdown_.shared_vol
       };
       msg->addNodeInfo(this_node, info);
@@ -1722,9 +1732,12 @@ void TemperedLB::propagateRound(uint8_t k_cur, bool sync, EpochType epoch) {
       }
       NodeInfo info{
         alpha,
-        this_new_load_, this_new_work_,
-        this_new_breakdown_.inter_send_vol, this_new_breakdown_.inter_recv_vol,
-        this_new_breakdown_.intra_send_vol, this_new_breakdown_.intra_recv_vol,
+        this_new_load_,
+        this_new_work_,
+        this_new_breakdown_.inter_send_vol,
+        this_new_breakdown_.inter_recv_vol,
+        this_new_breakdown_.intra_send_vol,
+        this_new_breakdown_.intra_recv_vol,
         this_new_breakdown_.shared_vol
       };
       msg->addNodeInfo(this_node, info);
@@ -2345,9 +2358,12 @@ void TemperedLB::considerSwapsAfterLock(MsgSharedPtr<LockedInfoMsg> msg) {
 
   NodeInfo this_info{
     alpha,
-    this_new_load_, this_new_work_,
-    this_new_breakdown_.inter_send_vol, this_new_breakdown_.inter_recv_vol,
-    this_new_breakdown_.intra_send_vol, this_new_breakdown_.intra_recv_vol,
+    this_new_load_,
+    this_new_work_,
+    this_new_breakdown_.inter_send_vol,
+    this_new_breakdown_.inter_recv_vol,
+    this_new_breakdown_.intra_send_vol,
+    this_new_breakdown_.intra_recv_vol,
     this_new_breakdown_.shared_vol
   };
 
@@ -2677,9 +2693,12 @@ void TemperedLB::satisfyLockRequest() {
 
     NodeInfo this_info{
       alpha,
-      this_new_load_, this_new_work_,
-      this_new_breakdown_.inter_send_vol, this_new_breakdown_.inter_recv_vol,
-      this_new_breakdown_.intra_send_vol, this_new_breakdown_.intra_recv_vol,
+      this_new_load_,
+      this_new_work_,
+      this_new_breakdown_.inter_send_vol,
+      this_new_breakdown_.inter_recv_vol,
+      this_new_breakdown_.intra_send_vol,
+      this_new_breakdown_.intra_recv_vol,
       this_new_breakdown_.shared_vol
     };
 
@@ -2701,9 +2720,12 @@ void TemperedLB::swapClusters() {
 
   NodeInfo this_info{
     alpha,
-    this_new_load_, this_new_work_,
-    this_new_breakdown_.inter_send_vol, this_new_breakdown_.inter_recv_vol,
-    this_new_breakdown_.intra_send_vol, this_new_breakdown_.intra_recv_vol,
+    this_new_load_,
+    this_new_work_,
+    this_new_breakdown_.inter_send_vol,
+    this_new_breakdown_.inter_recv_vol,
+    this_new_breakdown_.intra_send_vol,
+    this_new_breakdown_.intra_recv_vol,
     this_new_breakdown_.shared_vol
   };