From f832796b18d19aa868ba27e018dcb50d58e29e4f Mon Sep 17 00:00:00 2001
From: Nicole Lemaster Slattengren <nlslatt@sandia.gov>
Date: Tue, 23 Mar 2021 15:04:32 -0700
Subject: [PATCH] #1279: gossiplb: name barrier to prevent hang

---
 src/vt/vrt/collection/balance/gossiplb/gossiplb.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/vt/vrt/collection/balance/gossiplb/gossiplb.cc b/src/vt/vrt/collection/balance/gossiplb/gossiplb.cc
index 2c141ec1d6..62637450c4 100644
--- a/src/vt/vrt/collection/balance/gossiplb/gossiplb.cc
+++ b/src/vt/vrt/collection/balance/gossiplb/gossiplb.cc
@@ -405,7 +405,8 @@ void GossipLB::informSync() {
   theSched()->runSchedulerWhile([this]{ return not setup_done_; });
 
   for (; k_cur_ < k_max_; ++k_cur_) {
-    vt::theCollective()->barrier();
+    auto kbarr = theCollective()->newNamedCollectiveBarrier();
+    theCollective()->barrier(nullptr, kbarr);
 
     auto name = fmt::format("GossipLB: informSync k_cur={}", k_cur_);
     auto propagate_epoch = theTerm()->makeEpochCollective(name);