diff --git a/src/axom/lumberjack/MPIUtility.cpp b/src/axom/lumberjack/MPIUtility.cpp
index a12f4befde..0859da8ea8 100644
--- a/src/axom/lumberjack/MPIUtility.cpp
+++ b/src/axom/lumberjack/MPIUtility.cpp
@@ -49,18 +49,18 @@ const char* mpiBlockingReceiveMessages(MPI_Comm comm)
   return charArray;
 }
 
-const char* mpiNonBlockingReceiveMessages(MPI_Comm comm, const int tag)
+const char* mpiNonBlockingReceiveMessages(MPI_Comm comm, int tag)
 {
-  const int mpiTag = (tag == false) ? LJ_TAG : tag;
+  const int mpiTag = (tag == 0) ? LJ_TAG : tag;
   char* charArray = nullptr;
   int messageSize = -1;
   MPI_Status mpiStatus;
 
   // Get size and source of MPI message
-  int mpiFlag = true;
+  int mpiFlag = 0;
   MPI_Iprobe(MPI_ANY_SOURCE, tag, comm, &mpiFlag, &mpiStatus);
 
-  if (mpiFlag == true) {
+  if (mpiFlag == 1) {
     MPI_Get_count(&mpiStatus, MPI_CHAR, &messageSize);
 
     // Setup where to receive the char array
@@ -83,9 +83,9 @@ const char* mpiNonBlockingReceiveMessages(MPI_Comm comm, const int tag)
 void mpiNonBlockingSendMessages(MPI_Comm comm,
                                 int destinationRank,
                                 const char* packedMessagesToBeSent,
-                                const int tag)
+                                int tag)
 {
-  const int mpiTag = (tag == false) ? LJ_TAG : tag;
+  const int mpiTag = (tag == 0) ? LJ_TAG : tag;
   MPI_Request mpiRequest;
   MPI_Isend(const_cast<char*>(packedMessagesToBeSent),
             strlen(packedMessagesToBeSent),
diff --git a/src/axom/lumberjack/MPIUtility.hpp b/src/axom/lumberjack/MPIUtility.hpp
index 1842eada49..0fcdd0a926 100644
--- a/src/axom/lumberjack/MPIUtility.hpp
+++ b/src/axom/lumberjack/MPIUtility.hpp
@@ -38,7 +38,7 @@ const char* mpiBlockingReceiveMessages(MPI_Comm comm);
  * \param [in] comm The MPI Communicator.
  *****************************************************************************
  */
-const char* mpiNonBlockingReceiveMessages(MPI_Comm comm, const int tag = 0);
+const char* mpiNonBlockingReceiveMessages(MPI_Comm comm, int tag = 0);
 
 /*!
  *****************************************************************************
@@ -57,7 +57,7 @@ const char* mpiNonBlockingReceiveMessages(MPI_Comm comm, const int tag = 0);
 void mpiNonBlockingSendMessages(MPI_Comm comm,
                                 int destinationRank,
                                 const char* packedMessagesToBeSent,
-                                const int tag = 0);
+                                int tag = 0);
 }  // end namespace lumberjack
 }  // end namespace axom
 
diff --git a/src/axom/lumberjack/NonBlockingRootCommunicator.cpp b/src/axom/lumberjack/NonCollectiveRootCommunicator.cpp
similarity index 68%
rename from src/axom/lumberjack/NonBlockingRootCommunicator.cpp
rename to src/axom/lumberjack/NonCollectiveRootCommunicator.cpp
index a1bc6040a9..d2076a8059 100644
--- a/src/axom/lumberjack/NonBlockingRootCommunicator.cpp
+++ b/src/axom/lumberjack/NonCollectiveRootCommunicator.cpp
@@ -6,21 +6,21 @@
 /*!
  ******************************************************************************
  *
- * \file NonBlockingRootCommunicator.cpp
+ * \file NonCollectiveRootCommunicator.cpp
  *
- * \brief Implementation of the NonBlockingRootCommunicator class.
+ * \brief Implementation of the NonCollectiveRootCommunicator class.
  *
  ******************************************************************************
  */
 
-#include "axom/lumberjack/NonBlockingRootCommunicator.hpp"
+#include "axom/lumberjack/NonCollectiveRootCommunicator.hpp"
 #include "axom/lumberjack/MPIUtility.hpp"
 
 namespace axom
 {
 namespace lumberjack
 {
-void NonBlockingRootCommunicator::initialize(MPI_Comm comm, int ranksLimit)
+void NonCollectiveRootCommunicator::initialize(MPI_Comm comm, int ranksLimit)
 {
   m_mpiComm = comm;
   MPI_Comm_rank(m_mpiComm, &m_mpiCommRank);
@@ -28,17 +28,17 @@ void NonBlockingRootCommunicator::initialize(MPI_Comm comm, int ranksLimit)
   m_ranksLimit = ranksLimit;
 }
 
-void NonBlockingRootCommunicator::finalize() { }
+void NonCollectiveRootCommunicator::finalize() { }
 
-int NonBlockingRootCommunicator::rank() { return m_mpiCommRank; }
+int NonCollectiveRootCommunicator::rank() { return m_mpiCommRank; }
 
-void NonBlockingRootCommunicator::ranksLimit(int value) { m_ranksLimit = value; }
+void NonCollectiveRootCommunicator::ranksLimit(int value) { m_ranksLimit = value; }
 
-int NonBlockingRootCommunicator::ranksLimit() { return m_ranksLimit; }
+int NonCollectiveRootCommunicator::ranksLimit() { return m_ranksLimit; }
 
-int NonBlockingRootCommunicator::numPushesToFlush() { return 1; }
+int NonCollectiveRootCommunicator::numPushesToFlush() { return 1; }
 
-void NonBlockingRootCommunicator::push(const char* packedMessagesToBeSent,
+void NonCollectiveRootCommunicator::push(const char* packedMessagesToBeSent,
                             std::vector<const char*>& receivedPackedMessages)
 {
   constexpr int mpiTag = 32767; 
@@ -78,7 +78,7 @@ void NonBlockingRootCommunicator::push(const char* packedMessagesToBeSent,
   }
 }
 
-bool NonBlockingRootCommunicator::isOutputNode()
+bool NonCollectiveRootCommunicator::isOutputNode()
 {
   if(m_mpiCommRank == 0)
   {
diff --git a/src/axom/lumberjack/NonBlockingRootCommunicator.hpp b/src/axom/lumberjack/NonCollectiveRootCommunicator.hpp
similarity index 94%
rename from src/axom/lumberjack/NonBlockingRootCommunicator.hpp
rename to src/axom/lumberjack/NonCollectiveRootCommunicator.hpp
index ec432ef22c..fb2ff23c16 100644
--- a/src/axom/lumberjack/NonBlockingRootCommunicator.hpp
+++ b/src/axom/lumberjack/NonCollectiveRootCommunicator.hpp
@@ -5,15 +5,15 @@
 
 /*!
  *******************************************************************************
- * \file NonBlockingRootCommunicator.hpp
+ * \file NonCollectiveRootCommunicator.hpp
  *
  * \brief This file contains the class definition of the 
- *  NonBlockingRootCommunicator.
+ *  NonCollectiveRootCommunicator.
  *******************************************************************************
  */
 
-#ifndef NONBLOCKINGROOTCOMMUNICATOR_HPP
-#define NONBLOCKINGROOTCOMMUNICATOR_HPP
+#ifndef NONCOLLECTIVEROOTCOMMUNICATOR_HPP
+#define NONCOLLECTIVEROOTCOMMUNICATOR_HPP
 
 #include "axom/lumberjack/Lumberjack.hpp"
 #include "axom/lumberjack/Communicator.hpp"
@@ -24,13 +24,13 @@ namespace lumberjack
 {
 /*!
  *******************************************************************************
- * \class NonBlockingRootCommunicator
+ * \class NonCollectiveRootCommunicator
  *
  * \brief Based off of RootCommunicator. This communicator pushes
     messages from any rank to root non-collectively, if any messages are sent.
  *******************************************************************************
  */
-class NonBlockingRootCommunicator : public axom::lumberjack::Communicator
+class NonCollectiveRootCommunicator : public axom::lumberjack::Communicator
 {
 public:
   /*!