From 159b1f00cea2624e37a3ecd91e75156ff782191a Mon Sep 17 00:00:00 2001
From: Martin Schoenherr <m.schoenherr@tu-braunschweig.de>
Date: Wed, 7 Aug 2024 16:34:39 +0200
Subject: [PATCH] rename namespace utilities

---
 apps/cpu/LidDrivenCavity/LidDrivenCavity.cpp  |  8 ++--
 .../Connectors/CoarseToFineVectorConnector.h  |  4 +-
 .../Connectors/FineToCoarseVectorConnector.h  |  6 +--
 .../MPIIOMigrationBESimulationObserver.cpp    | 40 +++++++++----------
 .../MPIIOMigrationSimulationObserver.cpp      | 34 ++++++++--------
 .../MPIIORestartSimulationObserver.cpp        | 34 ++++++++--------
 .../MPIIOSimulationObserver.cpp               | 10 ++---
 src/cpu/core/Utilities/ChangeRandomQs.hpp     |  4 +-
 src/cpu/core/Utilities/MathUtil.hpp           |  4 +-
 src/cpu/core/Utilities/MemoryUtil.h           |  6 +--
 src/cpu/core/Utilities/VoxelMatrixUtil.hpp    |  4 +-
 .../core/Visitors/SetKernelBlockVisitor.cpp   |  2 +-
 src/gpu/core/Utilities/ScalingUtilities.h     |  2 +-
 13 files changed, 79 insertions(+), 79 deletions(-)

diff --git a/apps/cpu/LidDrivenCavity/LidDrivenCavity.cpp b/apps/cpu/LidDrivenCavity/LidDrivenCavity.cpp
index 69ee5767c..8244182d1 100644
--- a/apps/cpu/LidDrivenCavity/LidDrivenCavity.cpp
+++ b/apps/cpu/LidDrivenCavity/LidDrivenCavity.cpp
@@ -178,7 +178,7 @@ int main(int argc, char* argv[])
         intHelper.selectBlocks();
 
         if (myid == 0)
-            VF_LOG_INFO("{}", Utilities::toString(grid, comm->getNumberOfProcesses()));
+            VF_LOG_INFO("{}", utilities::toString(grid, comm->getNumberOfProcesses()));
 
         // Generate grid
         SetKernelBlockVisitor kernelVisitor(kernel, viscosityLB);
@@ -204,10 +204,10 @@ int main(int argc, char* argv[])
 
         UBLOG(logINFO, "Preprocess - end");
 
-        UBLOG(logINFO, "Total Physical Memory (RAM): " << Utilities::getTotalPhysMem() / 1e9 << " GB");
-        UBLOG(logINFO, "Physical Memory currently used: " << Utilities::getPhysMemUsed() / 1e9 << " GB");
+        UBLOG(logINFO, "Total Physical Memory (RAM): " << utilities::getTotalPhysMem() / 1e9 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used: " << utilities::getPhysMemUsed() / 1e9 << " GB");
         UBLOG(logINFO,
-              "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1e9 << " GB");
+              "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1e9 << " GB");
 
         // Create coprocessor object for writing macroscopic quantities to VTK-file
         SPtr<UbScheduler> visSch(new UbScheduler(timeStepOut));
diff --git a/src/cpu/core/Connectors/CoarseToFineVectorConnector.h b/src/cpu/core/Connectors/CoarseToFineVectorConnector.h
index b7becf19e..340b09433 100644
--- a/src/cpu/core/Connectors/CoarseToFineVectorConnector.h
+++ b/src/cpu/core/Connectors/CoarseToFineVectorConnector.h
@@ -806,11 +806,11 @@ void CoarseToFineVectorConnector<VectorTransmitter>::getLocalMinMax(const int &g
     if (dataDistribution)
         dCoef = 1;
 
-    if (Utilities::isOdd(gMax)) {
+    if (utilities::isOdd(gMax)) {
         halfEven = gMax / 2;
         halfOdd  = gMax / 2;
     }
-    if (Utilities::isEven(gMax)) {
+    if (utilities::isEven(gMax)) {
         halfEven = gMax / 2;
         halfOdd  = gMax / 2 - 1 + dCoef;
     }
diff --git a/src/cpu/core/Connectors/FineToCoarseVectorConnector.h b/src/cpu/core/Connectors/FineToCoarseVectorConnector.h
index 6c4f0a1cc..af303e56b 100644
--- a/src/cpu/core/Connectors/FineToCoarseVectorConnector.h
+++ b/src/cpu/core/Connectors/FineToCoarseVectorConnector.h
@@ -845,7 +845,7 @@ void FineToCoarseVectorConnector<VectorTransmitter>::writeICellCtoData(vector_ty
 template <typename VectorTransmitter>
 void FineToCoarseVectorConnector<VectorTransmitter>::getLocalMinMaxCF(int gMax, int &lMin, int &lMax)
 {
-    if (Utilities::isOdd(gMax)) {
+    if (utilities::isOdd(gMax)) {
         if (connType == OddEvenSE || connType == OddOddNE) {
             lMin = 1;
             lMax = gMax;
@@ -1447,10 +1447,10 @@ void FineToCoarseVectorConnector<VectorTransmitter>::getLocalMinMax(int &minX1,
 template <typename VectorTransmitter>
 void FineToCoarseVectorConnector<VectorTransmitter>::getLocalOffsets(const int &gMax, int &oMin)
 {
-    if (Utilities::isEven(gMax)) {
+    if (utilities::isEven(gMax)) {
         oMin = 0;
     }
-    if (Utilities::isOdd(gMax)) {
+    if (utilities::isOdd(gMax)) {
         oMin = -1;
     }
 }
diff --git a/src/cpu/core/SimulationObservers/MPIIOMigrationBESimulationObserver.cpp b/src/cpu/core/SimulationObservers/MPIIOMigrationBESimulationObserver.cpp
index 8a90d5232..a941801e3 100644
--- a/src/cpu/core/SimulationObservers/MPIIOMigrationBESimulationObserver.cpp
+++ b/src/cpu/core/SimulationObservers/MPIIOMigrationBESimulationObserver.cpp
@@ -155,7 +155,7 @@ void MPIIOMigrationBESimulationObserver::writeDataSet(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::writeDataSet start collect data rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     bool multiPhase1 = false;
@@ -321,7 +321,7 @@ void MPIIOMigrationBESimulationObserver::writeDataSet(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::writeDataSet start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     
@@ -460,7 +460,7 @@ void MPIIOMigrationBESimulationObserver::write4DArray(int step, Arrays arrayType
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::write4DArray start collect data rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     for (int level = minInitLevel; level <= maxInitLevel; level++) 
@@ -511,7 +511,7 @@ void MPIIOMigrationBESimulationObserver::write4DArray(int step, Arrays arrayType
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::write4DArray start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     // register new MPI-type depending on the block-specific information
@@ -576,7 +576,7 @@ void MPIIOMigrationBESimulationObserver::write3DArray(int step, Arrays arrayType
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::write3DArray start collect data rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     for (int level = minInitLevel; level <= maxInitLevel; level++) 
@@ -625,7 +625,7 @@ void MPIIOMigrationBESimulationObserver::write3DArray(int step, Arrays arrayType
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::write3DArray start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     // register new MPI-type depending on the block-specific information
@@ -672,7 +672,7 @@ void MPIIOMigrationBESimulationObserver::writeBoundaryConds(int step)
     if (comm->isRoot())
     {
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::writeBoundaryConds start collect data rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     int blocksCount          = 0; // quantity of blocks, that belong to this process
@@ -767,7 +767,7 @@ void MPIIOMigrationBESimulationObserver::writeBoundaryConds(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::writeBoundaryConds start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     
@@ -1034,7 +1034,7 @@ void MPIIOMigrationBESimulationObserver::readDataSet(int step)
     if (comm->isRoot())
     {
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readDataSet start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     bool multiPhase1 = false;
@@ -1125,7 +1125,7 @@ void MPIIOMigrationBESimulationObserver::readDataSet(int step)
         finish = MPI_Wtime();
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readDataSet time: " << finish - start << " s");
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readDataSet start of exchange of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     std::vector<real>* rawDataReceiveF = new std::vector<real>[size];
@@ -1155,7 +1155,7 @@ void MPIIOMigrationBESimulationObserver::readDataSet(int step)
         finish = MPI_Wtime();
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readDataSet time: " << finish - start << " s");
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readDataSet start of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
     
     //-------------------------------------- restore blocks ---------------------------------
@@ -1263,7 +1263,7 @@ void MPIIOMigrationBESimulationObserver::readDataSet(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readDataSet end of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     //-------------------------------------------------------------
@@ -1325,7 +1325,7 @@ void MPIIOMigrationBESimulationObserver::readArray(int step, Arrays arrType, std
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readArray start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     
@@ -1374,7 +1374,7 @@ void MPIIOMigrationBESimulationObserver::readArray(int step, Arrays arrType, std
         finish = MPI_Wtime();
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readArray time: " << finish - start << " s");
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readArray start of exchange of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     std::vector<real> *rawDataReceive = new std::vector<real>[size];
@@ -1389,7 +1389,7 @@ void MPIIOMigrationBESimulationObserver::readArray(int step, Arrays arrType, std
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readArray end of exchange of data, rank = " << rank);
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readArray time: " << finish - start << " s");
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readArray start of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     //----------------------------- restore data ---------------------------------
@@ -1473,7 +1473,7 @@ void MPIIOMigrationBESimulationObserver::readArray(int step, Arrays arrType, std
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readArray end of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 }
 
@@ -1486,7 +1486,7 @@ void MPIIOMigrationBESimulationObserver::readBoundaryConds(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readBoundaryConds start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     
@@ -1533,7 +1533,7 @@ void MPIIOMigrationBESimulationObserver::readBoundaryConds(int step)
         finish = MPI_Wtime();
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readBoundaryConds time: " << finish - start << " s");
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readBoundaryConds start of exchange of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     std::vector<int> *rawDataReceive = new std::vector<int>[size];
@@ -1614,7 +1614,7 @@ void MPIIOMigrationBESimulationObserver::readBoundaryConds(int step)
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readBoundaryConds end of exchange of data, rank = " << rank);
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readBoundaryConds time: " << finish - start << " s");
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readBoundaryConds start of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     filename = path + "/mpi_io_cp/mpi_io_cp_" + ub_system::toString(step) + "/cpBC2.bin";
@@ -1726,7 +1726,7 @@ void MPIIOMigrationBESimulationObserver::readBoundaryConds(int step)
         finish = MPI_Wtime();
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readBoundaryConds end of restore of data, rank = " << rank);
         UBLOG(logINFO, "MPIIOMigrationBESimulationObserver::readBoundaryConds time: " << finish - start << " s");
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 }
 
diff --git a/src/cpu/core/SimulationObservers/MPIIOMigrationSimulationObserver.cpp b/src/cpu/core/SimulationObservers/MPIIOMigrationSimulationObserver.cpp
index fcac2f12a..19c9bbf9d 100644
--- a/src/cpu/core/SimulationObservers/MPIIOMigrationSimulationObserver.cpp
+++ b/src/cpu/core/SimulationObservers/MPIIOMigrationSimulationObserver.cpp
@@ -173,7 +173,7 @@ void MPIIOMigrationSimulationObserver::writeDataSet(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::writeDataSet start collect data rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     bool multiPhase1 = false;
@@ -355,7 +355,7 @@ void MPIIOMigrationSimulationObserver::writeDataSet(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::writeDataSet start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     real start {0.};
@@ -502,7 +502,7 @@ void MPIIOMigrationSimulationObserver::write4DArray(int step, Arrays arrayType,
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::write4DArray start collect data rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     bool firstBlock           = true;
@@ -564,7 +564,7 @@ void MPIIOMigrationSimulationObserver::write4DArray(int step, Arrays arrayType,
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::write4DArray start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     
@@ -632,7 +632,7 @@ void MPIIOMigrationSimulationObserver::write3DArray(int step, Arrays arrayType,
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::write3DArray start collect data to file = " << fname);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     bool firstBlock           = true;
@@ -691,7 +691,7 @@ void MPIIOMigrationSimulationObserver::write3DArray(int step, Arrays arrayType,
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::write3DArray start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     
@@ -744,7 +744,7 @@ void MPIIOMigrationSimulationObserver::writeBoundaryConds(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::writeBoundaryConds start collect data rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     int blocksCount          = 0; // quantity of blocks, that belong to this process
@@ -840,7 +840,7 @@ void MPIIOMigrationSimulationObserver::writeBoundaryConds(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::writeBoundaryConds start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: "<< Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: "<< utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     
@@ -954,7 +954,7 @@ void MPIIOMigrationSimulationObserver::readDataSet(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::readDataSet start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
     
     real start {0.};
@@ -1080,7 +1080,7 @@ void MPIIOMigrationSimulationObserver::readDataSet(int step)
         finish = MPI_Wtime();
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::readDataSet time: " << finish - start << " s");
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::readDataSet start of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     size_t index = 0;
@@ -1184,7 +1184,7 @@ void MPIIOMigrationSimulationObserver::readDataSet(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::readDataSet end of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     delete[] dataSetArray;
@@ -1238,7 +1238,7 @@ void MPIIOMigrationSimulationObserver::readArray(int step, Arrays arrType, std::
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::readArray start fname = " << fname);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
     
     real start {0.};
@@ -1300,7 +1300,7 @@ void MPIIOMigrationSimulationObserver::readArray(int step, Arrays arrType, std::
         finish = MPI_Wtime();
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::readArray readArray: " << finish - start << " s");
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::readArray start of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     //----------------------------- restore data ---------------------------------
@@ -1374,7 +1374,7 @@ void MPIIOMigrationSimulationObserver::readArray(int step, Arrays arrType, std::
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::readArray end of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     delete[] dataSetSmallArray;
@@ -1389,7 +1389,7 @@ void MPIIOMigrationSimulationObserver::readBoundaryConds(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::readBoundaryConds start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     
@@ -1431,7 +1431,7 @@ void MPIIOMigrationSimulationObserver::readBoundaryConds(int step)
         finish = MPI_Wtime();
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::readBoundaryConds time: " << finish - start << " s");
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::readBoundaryConds start of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     MPI_File_read_at(file_handler, (MPI_Offset)0, &boundCondParamStr, 1, boundCondParamType, MPI_STATUS_IGNORE);
@@ -1533,7 +1533,7 @@ void MPIIOMigrationSimulationObserver::readBoundaryConds(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIOMigrationSimulationObserver::readBoundaryConds end of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 }
 
diff --git a/src/cpu/core/SimulationObservers/MPIIORestartSimulationObserver.cpp b/src/cpu/core/SimulationObservers/MPIIORestartSimulationObserver.cpp
index fd16fc338..e7088afc6 100644
--- a/src/cpu/core/SimulationObservers/MPIIORestartSimulationObserver.cpp
+++ b/src/cpu/core/SimulationObservers/MPIIORestartSimulationObserver.cpp
@@ -178,7 +178,7 @@ void MPIIORestartSimulationObserver::writeDataSet(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::writeDataSet start collect data rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     bool multiPhase1 = false;
@@ -362,7 +362,7 @@ void MPIIORestartSimulationObserver::writeDataSet(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::writeDataSet start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     // write to the file
@@ -522,7 +522,7 @@ void MPIIORestartSimulationObserver::write4DArray(int step, Arrays arrayType, st
     if (comm->isRoot())
     {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::writeAverageDensityArray start collect data to file = " << fname);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     bool firstBlock = true;
@@ -587,7 +587,7 @@ void MPIIORestartSimulationObserver::write4DArray(int step, Arrays arrayType, st
     if (comm->isRoot())
     {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::write4DArray start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     // write to the file
@@ -673,7 +673,7 @@ void MPIIORestartSimulationObserver::write3DArray(int step, Arrays arrayType, st
     if (comm->isRoot())
     {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::write3DArray start collect data to file = " << fname);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     bool firstBlock = true;
@@ -735,7 +735,7 @@ void MPIIORestartSimulationObserver::write3DArray(int step, Arrays arrayType, st
     if (comm->isRoot())
     {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::write3DArray start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     // write to the file
@@ -809,7 +809,7 @@ void MPIIORestartSimulationObserver::writeBoundaryConds(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::writeBoundaryConds start collect data rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     int blocksCount          = 0; // quantity of blocks in the grid, max 2147483648 blocks!
@@ -942,7 +942,7 @@ void MPIIORestartSimulationObserver::writeBoundaryConds(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::writeBoundaryConds start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     
@@ -1027,7 +1027,7 @@ void MPIIORestartSimulationObserver::readDataSet(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::readDataSet start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     
@@ -1128,7 +1128,7 @@ void MPIIORestartSimulationObserver::readDataSet(int step)
         finish = MPI_Wtime();
         UBLOG(logINFO, "MPIIORestartSimulationObserver::readDataSet time: " << finish - start << " s");
         UBLOG(logINFO, "MPIIORestartSimulationObserver::readDataSet start of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
     
     size_t index = 0;
@@ -1229,7 +1229,7 @@ void MPIIORestartSimulationObserver::readDataSet(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::readDataSet end of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     delete[] dataSetArray;
@@ -1283,7 +1283,7 @@ void MPIIORestartSimulationObserver::readArray(int step, Arrays arrType, std::st
     if (comm->isRoot())
     {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::readArray start fname = " << fname);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     real start{ 0. };
@@ -1347,7 +1347,7 @@ void MPIIORestartSimulationObserver::readArray(int step, Arrays arrType, std::st
         finish = MPI_Wtime();
         UBLOG(logINFO, "MPIIORestartSimulationObserver::readArray time: " << finish - start << " s");
         UBLOG(logINFO, "MPIIORestartSimulationObserver::readArray start of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     //----------------------------- restore data ---------------------------------
@@ -1422,7 +1422,7 @@ void MPIIORestartSimulationObserver::readArray(int step, Arrays arrType, std::st
     if (comm->isRoot())
     {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::readArray end of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     delete[] dataSetSmallArray;
@@ -1437,7 +1437,7 @@ void MPIIORestartSimulationObserver::readBoundaryConds(int step)
     if (comm->isRoot()) 
     {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::readBoundaryConds start MPI IO rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
     
     real start {0.};
@@ -1512,7 +1512,7 @@ void MPIIORestartSimulationObserver::readBoundaryConds(int step)
         finish = MPI_Wtime();
         UBLOG(logINFO, "MPIIORestartSimulationObserver::readBoundaryConds time: " << finish - start << " s");
         UBLOG(logINFO, "MPIIORestartSimulationObserver::readBoundaryConds start of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     int index = 0, index1 = 0, index2 = 0;
@@ -1584,7 +1584,7 @@ void MPIIORestartSimulationObserver::readBoundaryConds(int step)
 
     if (comm->isRoot()) {
         UBLOG(logINFO, "MPIIORestartSimulationObserver::readBoundaryConds end of restore of data, rank = " << rank);
-        UBLOG(logINFO, "Physical Memory currently used by current process: " << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+        UBLOG(logINFO, "Physical Memory currently used by current process: " << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 }
 //////////////////////////////////////////////////////////////////////////
diff --git a/src/cpu/core/SimulationObservers/MPIIOSimulationObserver.cpp b/src/cpu/core/SimulationObservers/MPIIOSimulationObserver.cpp
index 1ab7c063a..fdf79f84a 100644
--- a/src/cpu/core/SimulationObservers/MPIIOSimulationObserver.cpp
+++ b/src/cpu/core/SimulationObservers/MPIIOSimulationObserver.cpp
@@ -126,7 +126,7 @@ void MPIIOSimulationObserver::writeBlocks(int step)
     if (comm->isRoot()) {
         UBLOG(logINFO, "MPIIOSimulationObserver::writeBlocksToFile start collect data rank = " << rank);
         UBLOG(logINFO, "Physical Memory currently used by current process: "
-                           << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+                           << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     int blocksCount  = 0; // quantity of all the blocks in the grid, max 2147483648 blocks!
@@ -222,7 +222,7 @@ void MPIIOSimulationObserver::writeBlocks(int step)
     if (comm->isRoot()) {
         UBLOG(logINFO, "MPIIOSimulationObserver::writeBlocksToFile start MPI IO rank = " << rank);
         UBLOG(logINFO, "Physical Memory currently used by current process: "
-                           << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+                           << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     // write to the file
@@ -272,7 +272,7 @@ void MPIIOSimulationObserver::readBlocks(int step)
     if (comm->isRoot()) {
         UBLOG(logINFO, "MPIIOSimulationObserver::readBlocks start MPI IO rank = " << rank);
         UBLOG(logINFO, "Physical Memory currently used by current process: "
-                           << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+                           << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
     
     real start {0.};
@@ -312,7 +312,7 @@ void MPIIOSimulationObserver::readBlocks(int step)
         UBLOG(logINFO, "MPIIOSimulationObserver::readBlocks time: " << finish - start << " s");
         UBLOG(logINFO, "MPIIOSimulationObserver::readBlocks start of restore of data, rank = " << rank);
         UBLOG(logINFO, "Physical Memory currently used by current process: "
-                           << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+                           << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 
     // clear the grid
@@ -394,7 +394,7 @@ void MPIIOSimulationObserver::readBlocks(int step)
     if (comm->isRoot()) {
         UBLOG(logINFO, "MPIIOSimulationObserver::readBlocks end of restore of data, rank = " << rank);
         UBLOG(logINFO, "Physical Memory currently used by current process: "
-                           << Utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
+                           << utilities::getPhysMemUsedByMe() / 1073741824.0 << " GB");
     }
 }
 
diff --git a/src/cpu/core/Utilities/ChangeRandomQs.hpp b/src/cpu/core/Utilities/ChangeRandomQs.hpp
index b10617ec2..64c5349e2 100644
--- a/src/cpu/core/Utilities/ChangeRandomQs.hpp
+++ b/src/cpu/core/Utilities/ChangeRandomQs.hpp
@@ -26,7 +26,7 @@
 //  SPDX-License-Identifier: GPL-3.0-or-later
 //  SPDX-FileCopyrightText: Copyright © VirtualFluids Project contributors, see AUTHORS.md in root folder
 //
-//! \addtogroup cpu_Utilities Utilities
+//! \addtogroup cpu_Utilities utilities
 //! \ingroup cpu_core core
 //! \{
 //! \author Konstantin Kutscher
@@ -41,7 +41,7 @@
 #include "BCArray3D.h"
 #include "BCSet.h"
 
-namespace Utilities
+namespace utilities
 {
    void ChangeRandomQs(SPtr<IntegrateValuesHelper> integrateValues)
    {
diff --git a/src/cpu/core/Utilities/MathUtil.hpp b/src/cpu/core/Utilities/MathUtil.hpp
index dce9ecca3..0da7de883 100644
--- a/src/cpu/core/Utilities/MathUtil.hpp
+++ b/src/cpu/core/Utilities/MathUtil.hpp
@@ -26,7 +26,7 @@
 //  SPDX-License-Identifier: GPL-3.0-or-later
 //  SPDX-FileCopyrightText: Copyright © VirtualFluids Project contributors, see AUTHORS.md in root folder
 //
-//! \addtogroup cpu_Utilities Utilities
+//! \addtogroup cpu_Utilities utilities
 //! \ingroup cpu_core core
 //! \{
 #ifndef MATHUTIL_H
@@ -35,7 +35,7 @@
 #include <math.h>
 #include "muParser.h"
 
-namespace Utilities
+namespace utilities
 {
    static bool isEven( int integer )
    {
diff --git a/src/cpu/core/Utilities/MemoryUtil.h b/src/cpu/core/Utilities/MemoryUtil.h
index c0140c3d7..67d318fab 100644
--- a/src/cpu/core/Utilities/MemoryUtil.h
+++ b/src/cpu/core/Utilities/MemoryUtil.h
@@ -26,7 +26,7 @@
 //  SPDX-License-Identifier: GPL-3.0-or-later
 //  SPDX-FileCopyrightText: Copyright © VirtualFluids Project contributors, see AUTHORS.md in root folder
 //
-//! \addtogroup cpu_Utilities Utilities
+//! \addtogroup cpu_Utilities utilities
 //! \ingroup cpu_core core
 //! \{
 //! \author Konstantin Kutscher
@@ -72,7 +72,7 @@
 //////////////////////////////////////////////////////////////////////////
 // MemoryUtil
 //////////////////////////////////////////////////////////////////////////
-namespace Utilities
+namespace utilities
 {
 //////////////////////////////////////////////////////////////////////////
 static long long getTotalPhysMem()
@@ -205,7 +205,7 @@ static std::string toString(SPtr<Grid3D> grid, int numberOfProcesses)
     return out.str();
 }
 
-} // namespace Utilities
+} // namespace utilities
 
 #endif
 
diff --git a/src/cpu/core/Utilities/VoxelMatrixUtil.hpp b/src/cpu/core/Utilities/VoxelMatrixUtil.hpp
index ab337e357..d54c31e46 100644
--- a/src/cpu/core/Utilities/VoxelMatrixUtil.hpp
+++ b/src/cpu/core/Utilities/VoxelMatrixUtil.hpp
@@ -26,7 +26,7 @@
 //  SPDX-License-Identifier: GPL-3.0-or-later
 //  SPDX-FileCopyrightText: Copyright © VirtualFluids Project contributors, see AUTHORS.md in root folder
 //
-//! \addtogroup cpu_Utilities Utilities
+//! \addtogroup cpu_Utilities utilities
 //! \ingroup cpu_core core
 //! \{
 //! \author Konstantin Kutscher
@@ -43,7 +43,7 @@
 #include "Grid3D.h"
 
 
-namespace Utilities
+namespace utilities
 {
    void voxelMatrixDiscretisation(SPtr<GbVoxelMatrix3D> matrix, std::string& pathname, int myid, int fileCounter, SPtr<Grid3D> grid, int bounceBackOption, bool vmFile)
    {
diff --git a/src/cpu/core/Visitors/SetKernelBlockVisitor.cpp b/src/cpu/core/Visitors/SetKernelBlockVisitor.cpp
index f6730647e..197b7c052 100644
--- a/src/cpu/core/Visitors/SetKernelBlockVisitor.cpp
+++ b/src/cpu/core/Visitors/SetKernelBlockVisitor.cpp
@@ -111,7 +111,7 @@ void SetKernelBlockVisitor::visit(SPtr<Grid3D> grid, SPtr<Block3D> block)
 
 void SetKernelBlockVisitor::throwExceptionIfNotEnoughMemory(const SPtr<Grid3D> &grid)
 {
-    auto availableMemory = Utilities::getTotalPhysMem();
+    auto availableMemory = utilities::getTotalPhysMem();
     auto requiredMemory  = getRequiredPhysicalMemory(grid);
     if (requiredMemory > availableMemory)
         throw UbException(UB_EXARGS, "SetKernelBlockVisitor: Not enough memory!!! Rank = " + ub_system::toString(grid->getRank()));
diff --git a/src/gpu/core/Utilities/ScalingUtilities.h b/src/gpu/core/Utilities/ScalingUtilities.h
index c0cfe5f9d..70275f434 100644
--- a/src/gpu/core/Utilities/ScalingUtilities.h
+++ b/src/gpu/core/Utilities/ScalingUtilities.h
@@ -26,7 +26,7 @@
 //  SPDX-License-Identifier: GPL-3.0-or-later
 //  SPDX-FileCopyrightText: Copyright © VirtualFluids Project contributors, see AUTHORS.md in root folder
 //
-//! \addtogroup gpu_Utilities Utilities
+//! \addtogroup gpu_Utilities utilities
 //! \ingroup gpu_core core
 //! \{
 //! \author Martin Schoenherr, Anna Wellmann
-- 
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