83   std::optional<BPThreadPool> TP;  in run()  local
87     TP.emplace(TheThreadPool);  in run()
95   auto BisectTask = [=, &TP]() {  in run()
96     bisect(NodesRange, /*RecDepth=*/0, /*RootBucket=*/1, /*Offset=*/0, TP);  in run()
98   if (TP) {  in run()
99     TP->async(std::move(BisectTask));  in run()
100     TP->wait();  in run()
115                                   std::optional<BPThreadPool> &TP) const {  in bisect()
149   auto LeftRecTask = [=, &TP]() {  in bisect()
150     bisect(LeftNodes, RecDepth + 1, LeftBucket, Offset, TP);  in bisect()
152   auto RightRecTask = [=, &TP]() {  in bisect()
153     bisect(RightNodes, RecDepth + 1, RightBucket, MidOffset, TP);  in bisect()
156   if (TP && RecDepth < Config.TaskSplitDepth && NumNodes >= 4) {  in bisect()
157     TP->async(std::move(LeftRecTask));  in bisect()
158     TP->async(std::move(RightRecTask));  in bisect()