diff --git a/README b/README
new file mode 100644
index 00000000..a677e0a8
--- /dev/null
+++ b/README
@@ -0,0 +1,82 @@
+/*---------------------------------------------------------------------------*\
+    CFDEMcoupling - Open Source CFD-DEM coupling
+
+    CFDEMcoupling is part of the CFDEMproject
+    www.cfdem.com
+                                Christoph Goniva, christoph.goniva@cfdem.com
+                                Copyright 2009-2012 JKU Linz
+                                Copyright 2012-     DCS Computing GmbH, Linz
+-------------------------------------------------------------------------------
+License
+    This file is part of CFDEMcoupling.
+
+    CFDEMcoupling is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 3 of the License, or (at your
+    option) any later version.
+
+    CFDEMcoupling is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with CFDEMcoupling; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Description
+    This code is designed to realize coupled CFD-DEM simulations using LIGGGHTS
+    and OpenFOAM. Note: this code is not part of OpenFOAM (see DISCLAIMER).
+\*---------------------------------------------------------------------------*/
+
+
+CFDEM coupling provides an open source parallel coupled CFD-DEM framework 
+combining the strengths of LIGGGHTS DEM code and the Open Source 
+CFD package OpenFOAM(R)(*). The CFDEMcoupling toolbox allows to expand 
+standard CFD solvers of OpenFOAM(R)(*) to include a coupling to the DEM 
+code LIGGGHTS. In this toolbox the particle representation within the 
+CFD solver is organized by "cloud" classes. Key functionalities are organised 
+in sub-models (e.g. force models, data exchange models, etc.) which can easily 
+be selected and combined by dictionary settings.
+
+The coupled solvers run fully parallel on distributed-memory clusters. 
+
+Features are:
+
+- its modular approach allows users to easily implement new models
+- its MPI parallelization enables to use it for large scale problems
+- the "forum"_lws on CFD-DEM gives the possibility to exchange with other 
+  users / developers
+- the use of GIT allows to easily update to the latest version
+- basic documentation is provided
+
+The file structure:
+
+- "src" directory including the source files of the coupling toolbox and models
+- "applications" directory including the solver files for coupled CFD-DEM simulations
+- "doc" directory including the documentation of CFDEMcoupling
+- "tutorials" directory including basic tutorial cases showing the functionality
+
+
+
+Details on installation are given on the "www.cfdem.com"
+
+The functionality of this CFD-DEM framwork is described via "tutorial cases" showing 
+how to use different solvers and models.
+
+CFDEMcoupling stands for Computational Fluid Dynamics (CFD) -
+Discrete Element Method (DEM) coupling.
+
+CFDEMcoupling is an open-source code, distributed freely under the terms of the 
+GNU Public License (GPL).
+
+Core development of CFDEMcoupling is done by 
+Christoph Goniva and Christoph Kloss, both at DCS Computing GmbH, 2012
+
+
+\*---------------------------------------------------------------------------*/
+(*) "OpenFOAM(R)"_of is a registered trade mark of Silicon Graphics 
+International Corp. This offering is not affiliated, approved or endorsed by 
+Silicon Graphics International Corp., the producer of the OpenFOAM(R) software 
+and owner of the OpenFOAM(R) trademark.
+\*---------------------------------------------------------------------------*/
diff --git a/applications/utilities/cfdemPostproc/cfdemPostproc.C b/applications/utilities/cfdemPostproc/cfdemPostproc.C
index 52dc61c5..7fbec647 100644
--- a/applications/utilities/cfdemPostproc/cfdemPostproc.C
+++ b/applications/utilities/cfdemPostproc/cfdemPostproc.C
@@ -62,6 +62,7 @@ int main(int argc, char *argv[])
 
     int count=0;
     int DEM_dump_Interval=1000;
+    particleCloud.reAllocArrays();
 
     double **positions_;
     double **velocities_;
@@ -73,11 +74,14 @@ int main(int argc, char *argv[])
     
     particleCloud.dataExchangeM().allocateArray(positions_,0.,3);
     particleCloud.dataExchangeM().allocateArray(velocities_,0.,3);
-    particleCloud.dataExchangeM().allocateArray(radii_,0.,1);
+    particleCloud.get_radii(radii_);  // get ref to radii
+    //particleCloud.dataExchangeM().allocateArray(radii_,0.,1);
     particleCloud.dataExchangeM().allocateArray(voidfractions_,0.,1);
     particleCloud.dataExchangeM().allocateArray(particleWeights_,0.,1);
     particleCloud.dataExchangeM().allocateArray(particleVolumes_,0.,1);
-    particleCloud.dataExchangeM().allocateArray(cellIDs_,0.,1);
+    particleCloud.get_cellIDs(cellIDs_);  // get ref to cellIDs
+    //particleCloud.dataExchangeM().allocateArray(cellIDs_,0.,1);
+    
 
     while (runTime.loop())
     {
@@ -97,12 +101,8 @@ int main(int argc, char *argv[])
         particleCloud.dataExchangeM().getData("v","vector-atom",velocities_,count);
         particleCloud.dataExchangeM().getData("radius","scalar-atom",radii_,count);
 
-        particleCloud.set_radii(radii_);
-
         particleCloud.locateM().findCell(NULL,positions_,cellIDs_,particleCloud.numberOfParticles());
 
-        particleCloud.set_cellIDs(cellIDs_);
-
         particleCloud.voidFractionM().setvoidFraction
         (
             NULL,voidfractions_,particleWeights_,particleVolumes_
@@ -128,13 +128,13 @@ int main(int argc, char *argv[])
 
     }
 
-    delete positions_;
-    delete velocities_;
-    delete radii_;
-    delete voidfractions_;
-    delete particleWeights_;
-    delete particleVolumes_;
-    delete cellIDs_;
+    particleCloud.dataExchangeM().destroy(positions_,3);
+    particleCloud.dataExchangeM().destroy(velocities_,3);
+    //particleCloud.dataExchangeM().destroy(radii_); // destroyed in cloud
+    particleCloud.dataExchangeM().destroy(voidfractions_,1);
+    particleCloud.dataExchangeM().destroy(particleWeights_,1);
+    particleCloud.dataExchangeM().destroy(particleVolumes_,1);
+    //particleCloud.dataExchangeM().destroy(cellIDs_); // destroyed in cloud
 
     Info<< "End\n" << endl;
 
diff --git a/doc/CFDEMcoupling_Manual.pdf b/doc/CFDEMcoupling_Manual.pdf
new file mode 100644
index 00000000..455d35f7
Binary files /dev/null and b/doc/CFDEMcoupling_Manual.pdf differ
diff --git a/doc/githubAccess_public.pdf b/doc/githubAccess_public.pdf
new file mode 100644
index 00000000..4e14c2ce
Binary files /dev/null and b/doc/githubAccess_public.pdf differ
diff --git a/doc/liggghtsCommandModel_writeLiggghts.html b/doc/liggghtsCommandModel_writeLiggghts.html
index 709e7063..685b9014 100644
--- a/doc/liggghtsCommandModel_writeLiggghts.html
+++ b/doc/liggghtsCommandModel_writeLiggghts.html
@@ -25,7 +25,7 @@ writeLiggghtsProps
     overwrite switch2;
 } 
 </PRE>
-<UL><LI><I>switch1</I> = switch (choose on/off) to select if only last step is stored or every write step. "off" is not recommended (DEM data might get lost) 
+<UL><LI><I>switch1</I> = switch (choose on/off) to select if only last step is stored or every write step. 
 
 <LI><I>name</I> = name of the restart file to be written in /$caseDir/DEM/  default default "liggghts.restartCFDEM" 
 
diff --git a/doc/liggghtsCommandModel_writeLiggghts.txt b/doc/liggghtsCommandModel_writeLiggghts.txt
index 875ebd27..c0a2a310 100644
--- a/doc/liggghtsCommandModel_writeLiggghts.txt
+++ b/doc/liggghtsCommandModel_writeLiggghts.txt
@@ -23,7 +23,7 @@ writeLiggghtsProps
     overwrite switch2;
 \} :pre
 
-{switch1} = switch (choose on/off) to select if only last step is stored or every write step. "off" is not recommended (DEM data might get lost) :ulb,l
+{switch1} = switch (choose on/off) to select if only last step is stored or every write step. :ulb,l
 {name} = name of the restart file to be written in /$caseDir/DEM/  default default "liggghts.restartCFDEM" :l
 {switch2} = switch (choose on/off) to select if only one restart file $name or many files $name_$timeStamp are written :l
 :ule
diff --git a/src/lagrangian/cfdemParticle/Make/files b/src/lagrangian/cfdemParticle/Make/files
index d1578924..c939c8b0 100644
--- a/src/lagrangian/cfdemParticle/Make/files
+++ b/src/lagrangian/cfdemParticle/Make/files
@@ -6,7 +6,6 @@ voidFractionModels = subModels/voidFractionModel
 locateModels = subModels/locateModel
 meshMotionModels = subModels/meshMotionModel
 momCoupleModels = subModels/momCoupleModel
-regionModels = subModels/regionModel
 dataExchangeModels = subModels/dataExchangeModel
 averagingModels = subModels/averagingModel
 clockModels = subModels/clockModel
@@ -20,18 +19,33 @@ $(forceModels)/forceModel/forceModel.C
 $(forceModels)/forceModel/newForceModel.C
 $(forceModels)/noDrag/noDrag.C
 $(forceModels)/DiFeliceDrag/DiFeliceDrag.C
+$(forceModels)/DiFeliceDragNLift/DiFeliceDragNLift.C
 $(forceModels)/GidaspowDrag/GidaspowDrag.C
 $(forceModels)/SchillerNaumannDrag/SchillerNaumannDrag.C
 $(forceModels)/Archimedes/Archimedes.C
 $(forceModels)/ArchimedesIB/ArchimedesIB.C
 $(forceModels)/interface/interface.C
 $(forceModels)/ShirgaonkarIB/ShirgaonkarIB.C
+$(forceModels)/fieldTimeAverage/fieldTimeAverage.C
+$(forceModels)/fieldBound/fieldBound.C
+$(forceModels)/volWeightedAverage/volWeightedAverage.C
+$(forceModels)/totalMomentumExchange/totalMomentumExchange.C
 $(forceModels)/KochHillDrag/KochHillDrag.C
+$(forceModels)/BeetstraDrag/multiphaseFlowBasic/multiphaseFlowBasic.C
+$(forceModels)/BeetstraDrag/BeetstraDrag.C
+$(forceModels)/LaEuScalarLiquid/LaEuScalarLiquid.C
 $(forceModels)/LaEuScalarTemp/LaEuScalarTemp.C
+$(forceModels)/LaEuScalarDust/LaEuScalarDust.C
 $(forceModels)/virtualMassForce/virtualMassForce.C
 $(forceModels)/gradPForce/gradPForce.C
+$(forceModels)/gradULiftForce/gradULiftForce.C
 $(forceModels)/viscForce/viscForce.C
 $(forceModels)/MeiLift/MeiLift.C
+$(forceModels)/KochHillDragNLift/KochHillDragNLift.C
+$(forceModels)/solidsPressureForce/solidsPressureForce.C
+$(forceModels)/periodicPressure/periodicPressure.C
+$(forceModels)/periodicPressureControl/periodicPressureControl.C
+$(forceModels)/averageSlipVel/averageSlipVel.C
 
 $(forceModelsMS)/forceModelMS/forceModelMS.C
 $(forceModelsMS)/forceModelMS/newForceModelMS.C
@@ -42,6 +56,7 @@ $(IOModels)/IOModel/newIOModel.C
 $(IOModels)/noIO/noIO.C
 $(IOModels)/basicIO/basicIO.C
 $(IOModels)/trackIO/trackIO.C
+$(IOModels)/sophIO/sophIO.C
 
 $(voidFractionModels)/voidFractionModel/voidFractionModel.C
 $(voidFractionModels)/voidFractionModel/newVoidFractionModel.C
@@ -60,21 +75,18 @@ $(locateModels)/turboEngineSearch/turboEngineSearch.C
 $(locateModels)/turboEngineSearchM2M/turboEngineSearchM2M.C
 $(locateModels)/engineSearchIB/engineSearchIB.C
 
-
 $(meshMotionModels)/meshMotionModel/meshMotionModel.C
 $(meshMotionModels)/meshMotionModel/newMeshMotionModel.C
 $(meshMotionModels)/noMeshMotion/noMeshMotion.C
+$(meshMotionModels)/DEMdrivenMeshMotion/DEMdrivenMeshMotion.C
 
 $(momCoupleModels)/momCoupleModel/momCoupleModel.C
 $(momCoupleModels)/momCoupleModel/newMomCoupleModel.C
 $(momCoupleModels)/explicitCouple/explicitCouple.C
+$(momCoupleModels)/explicitCoupleSource/explicitCoupleSource.C
 $(momCoupleModels)/implicitCouple/implicitCouple.C
 $(momCoupleModels)/noCouple/noCouple.C
 
-$(regionModels)/regionModel/regionModel.C
-$(regionModels)/regionModel/newRegionModel.C
-$(regionModels)/allRegion/allRegion.C
-
 $(dataExchangeModels)/dataExchangeModel/dataExchangeModel.C
 $(dataExchangeModels)/dataExchangeModel/newDataExchangeModel.C
 $(dataExchangeModels)/oneWayVTK/oneWayVTK.C
diff --git a/src/lagrangian/cfdemParticle/cfdTools/versionInfo.H b/src/lagrangian/cfdemParticle/cfdTools/versionInfo.H
index b2a63cb1..2ef8725e 100755
--- a/src/lagrangian/cfdemParticle/cfdTools/versionInfo.H
+++ b/src/lagrangian/cfdemParticle/cfdTools/versionInfo.H
@@ -1,5 +1,5 @@
-word CFDEMversion="cfdem-2.4.7";
-word compatibleLIGGGHTSversion="2.2.3";
+word CFDEMversion="cfdem-2.5.0";
+word compatibleLIGGGHTSversion="2.2.4";
 
 Info << "\nCFDEMcoupling version: " << CFDEMversion << "\n" <<  endl;
 Info << "\n, compatible to LIGGGHTS version: " << compatibleLIGGGHTSversion << "\n" <<  endl;
diff --git a/src/lagrangian/cfdemParticle/cfdemCloud/cfdemCloud.C b/src/lagrangian/cfdemParticle/cfdemCloud/cfdemCloud.C
index f5cd91a8..f94af2d2 100644
--- a/src/lagrangian/cfdemParticle/cfdemCloud/cfdemCloud.C
+++ b/src/lagrangian/cfdemParticle/cfdemCloud/cfdemCloud.C
@@ -42,7 +42,6 @@ Description
 #include "clockModel.H"
 #include "liggghtsCommandModel.H"
 
-#include "mpi.h"
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 Foam::cfdemCloud::cfdemCloud
 (
@@ -222,24 +221,18 @@ Foam::cfdemCloud::~cfdemCloud()
 {
     clockM().evalPar();
     clockM().normHist();
-    free2D(positions_);
-    free2D(velocities_);
-    free2D(impForces_);
-    free2D(expForces_);
-    free2D(DEMForces_);
-    free2D(radii_);
-    free2D(voidfractions_);
-    free2D(cellIDs_);
-    free2D(particleWeights_);
-    free2D(particleVolumes_);
+    dataExchangeM().destroy(positions_,3);
+    dataExchangeM().destroy(velocities_,3);
+    dataExchangeM().destroy(impForces_,3);
+    dataExchangeM().destroy(expForces_,3);
+    dataExchangeM().destroy(DEMForces_,3);
+    dataExchangeM().destroy(radii_,1);
+    dataExchangeM().destroy(voidfractions_,1);
+    dataExchangeM().destroy(cellIDs_,1);
+    dataExchangeM().destroy(particleWeights_,1);
+    dataExchangeM().destroy(particleVolumes_,1);
 }
 // * * * * * * * * * * * * * * * private Member Functions  * * * * * * * * * * * * * //
-inline void Foam::cfdemCloud::free2D(double** array)
-{
-    if(array) free(array[0]);
-    free(array);
-}
-
 void Foam::cfdemCloud::getDEMdata()
 {
     dataExchangeM().getData("radius","scalar-atom",radii_);
diff --git a/src/lagrangian/cfdemParticle/cfdemCloud/cfdemCloud.H b/src/lagrangian/cfdemParticle/cfdemCloud/cfdemCloud.H
index a8d60166..76b36f9a 100644
--- a/src/lagrangian/cfdemParticle/cfdemCloud/cfdemCloud.H
+++ b/src/lagrangian/cfdemParticle/cfdemCloud/cfdemCloud.H
@@ -162,8 +162,6 @@ protected:
     autoPtr<liggghtsCommandModel>* liggghtsCommand_;
 
 // Private member functions
-    inline void free2D(double**);
-
     virtual void getDEMdata();
 
     virtual void giveDEMdata();
@@ -238,11 +236,11 @@ public:
 
        inline double ** voidfractions() const;
 
-       inline void set_radii(double**&) const;
+       inline void get_radii(double**&) const;
 
        inline double ** cellIDs() const;
 
-       inline void set_cellIDs(double**&) const;
+       inline void get_cellIDs(double**&) const;
 
        inline double ** particleWeights() const;
 
diff --git a/src/lagrangian/cfdemParticle/cfdemCloud/cfdemCloudI.H b/src/lagrangian/cfdemParticle/cfdemCloud/cfdemCloudI.H
index 3bf79c50..af5f61a9 100644
--- a/src/lagrangian/cfdemParticle/cfdemCloud/cfdemCloudI.H
+++ b/src/lagrangian/cfdemParticle/cfdemCloud/cfdemCloudI.H
@@ -89,9 +89,13 @@ inline double ** cfdemCloud::voidfractions() const
     return voidfractions_;
 }
 
-inline void cfdemCloud::set_radii(double **& values) const
+inline void cfdemCloud::get_radii(double **& values) const
 {
-    radii_=values;
+//    Info << "set_radii level=" << numberOfParticles_ << endl;
+    // make a copy of the array entries
+//    for (int i=0;i<numberOfParticles_;i++)
+//        radii_[0][i]=values[0][i];
+    values=radii_;
 }
 
 inline double ** cfdemCloud::cellIDs() const
@@ -99,9 +103,12 @@ inline double ** cfdemCloud::cellIDs() const
     return cellIDs_;
 }
 
-inline void cfdemCloud::set_cellIDs(double **& values) const
+inline void cfdemCloud::get_cellIDs(double **& values) const
 {
-    cellIDs_=values;
+//    // make a copy of the array entries
+//    for (int i=0;i<numberOfParticles_;i++)
+//        cellIDs_[0][i]=values[0][i];
+    values=cellIDs_;
 }
 
 inline double ** cfdemCloud::particleWeights() const
diff --git a/src/lagrangian/cfdemParticle/subModels/clockModel/clockModel/clockModel.C b/src/lagrangian/cfdemParticle/subModels/clockModel/clockModel/clockModel.C
index 9e2219e3..990a9526 100644
--- a/src/lagrangian/cfdemParticle/subModels/clockModel/clockModel/clockModel.C
+++ b/src/lagrangian/cfdemParticle/subModels/clockModel/clockModel/clockModel.C
@@ -32,6 +32,8 @@ Description
 #include "error.H"
 #include "mpi.h"
 #include "clockModel.H"
+#include <unistd.h>
+
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -56,22 +58,22 @@ void Foam::clockModel::start(int pos,std::string ident) const
 {
     if(particleCloud_.mesh().time().value() > startTime_)
     {
-	if (pos >= n_) // alternatively one fixed size?
-	{
-		n_ = 2*n_;
-		deltaT_.resize(n_,0);
-		identifier_.resize(n_,"");
-		nOfRuns_.resize(n_,0);
-		level_.resize(n_,-1);
-		parent_.resize(n_,-2);
-	}
-	identifier_[pos]=ident;
-	level_[pos] = curLev_;
-	curLev_ += 1;
-	parent_[pos]=curParent_;
-	curParent_ = pos;
-	nOfRuns_[pos] += 1;
-	deltaT_[pos]-=std::clock();
+    	if (pos >= n_) // alternatively one fixed size?
+    	{
+    		n_ = 2*n_;
+	    	deltaT_.resize(n_,0);
+	    	identifier_.resize(n_,"");
+	    	nOfRuns_.resize(n_,0);
+	    	level_.resize(n_,-1);
+	    	parent_.resize(n_,-2);
+	    }
+	    identifier_[pos]=ident;
+	    level_[pos] = curLev_;
+	    curLev_ += 1;
+	    parent_[pos]=curParent_;
+	    curParent_ = pos;
+	    nOfRuns_[pos] += 1;
+	    deltaT_[pos]-=std::clock();
     }
 	return;
 }
@@ -80,16 +82,16 @@ void Foam::clockModel::stop() const
 {
     if(particleCloud_.mesh().time().value() > startTime_)
     {
-	deltaT_[curParent_]+=std::clock();
-	curLev_ -= 1;
-	if (curParent_ >= 0)
-	{
-		curParent_ = parent_[curParent_];
-	}
-	else
-	{
-		curParent_ = -1;
-	}
+    	deltaT_[curParent_]+=std::clock();
+	    curLev_ -= 1;
+	    if (curParent_ >= 0)
+	    {
+	    	curParent_ = parent_[curParent_];
+	    }
+	    else
+	    {
+	    	curParent_ = -1;
+	    }
     }
 	return;
 }
@@ -98,20 +100,20 @@ void Foam::clockModel::stop(std::string ident) const
 {
     if(particleCloud_.mesh().time().value() > startTime_)
     {
-	deltaT_[curParent_] += std::clock();
-	if (curParent_ > 0 && identifier_[curParent_].compare(ident)!=0)
-	{
-		Pout<<"Warning: stop identifier did not equal start identifier! "<<ident<<" & "<<identifier_[curParent_]<<nl;
-	}
-	curLev_ -= 1;
-	if (curParent_ >= 0)
-	{
-		curParent_ = parent_[curParent_];
-	}
-	else
-	{
-		curParent_ = -1;
-	}
+    	deltaT_[curParent_] += std::clock();
+	    if (curParent_ > 0 && identifier_[curParent_].compare(ident)!=0)
+	    {
+	    	Pout<<"Warning: stop identifier did not equal start identifier! "<<ident<<" & "<<identifier_[curParent_]<<nl;
+	    }
+	    curLev_ -= 1;
+	    if (curParent_ >= 0)
+	    {
+	    	curParent_ = parent_[curParent_];
+	    }
+	    else
+	    {
+	    	curParent_ = -1;
+	    }
     }
 	return;
 }
@@ -355,11 +357,13 @@ void Foam::clockModel::normHist() const
     plotHist(buffIn,identifier_[26],numprocs,myrank);
     Info << "===========================" << endl;
 
+	getRAMUsage();
 	return;
 }
 
 void Foam::clockModel::plotHist(double buffIn,std::string identifier,int numprocs,int myrank) const
 {
+/*  // version using double*, problem: no alloc for double * and MPI
     double* globalTime=NULL;
     double* globalTime_all=NULL;
     particleCloud_.dataExchangeM().allocateArray(globalTime,0.,numprocs);
@@ -374,7 +378,24 @@ void Foam::clockModel::plotHist(double buffIn,std::string identifier,int numproc
     Info << "\t" <<identifier << endl;
 
     particleCloud_.dataExchangeM().destroy(globalTime);
-    particleCloud_.dataExchangeM().destroy(globalTime_all);
+    particleCloud_.dataExchangeM().destroy(globalTime_all);*/
+
+
+    double** globalTime=NULL;
+    double** globalTime_all=NULL;
+    particleCloud_.dataExchangeM().allocateArray(globalTime,0.,1,numprocs);
+    particleCloud_.dataExchangeM().allocateArray(globalTime_all,0.,1,numprocs);  
+   
+    globalTime[0][myrank]=buffIn;
+    MPI_Allreduce(globalTime[0], globalTime_all[0], numprocs, MPI_DOUBLE, MPI_SUM, MPI_COMM_WORLD);
+
+    if(myrank==0)
+        for(int j=0;j<numprocs;j++)
+            printf("%4f  ",globalTime_all[0][j]);
+    Info << "\t" <<identifier << endl;
+
+    particleCloud_.dataExchangeM().destroy(globalTime,1);
+    particleCloud_.dataExchangeM().destroy(globalTime_all,1);
 }
 
 void Foam::clockModel::Hist() const
@@ -396,8 +417,73 @@ void Foam::clockModel::Hist() const
 	return;
 }
 
+void Foam::clockModel::getRAMUsage() const
+{
+	int myrank=-10;
+    	MPI_Comm_rank(MPI_COMM_WORLD,&myrank);
+	int numprocs=-10;
+	MPI_Comm_size(MPI_COMM_WORLD, &numprocs);
+	
+	pid_t myPID = getpid();	//get PID of running process
+	//Pout << myPID << "\n";
+	
+	std::string fileName = "/proc/"; //build path to /proc/PID/smaps and open file
+	std::stringstream strs;
+	strs << myPID;
 
+	fileName.append(strs.str());
+	fileName.append("/smaps");
+	std::ifstream inFile;
+	inFile.open(fileName.data(),ios_base::in);
 
+	std::string line;
+	int RssMem = 0;
+	int SwapMem = 0;
+	int temp = 0;
+	strs.str("");
+	if (inFile.is_open())	//search in File smaps for Rss and Swap entries
+	{
+		while(inFile.good())
+		{
+			getline(inFile,line);
+			strs.str("");
+			if (line.substr(0,4).compare("Rss:") == 0)
+			{
+			strs << line;
+			strs >> line >> temp;
+			RssMem = RssMem + temp;
+			//Pout << temp << " ";
+			}
+			else if (line.substr(0,5).compare("Swap:") == 0)
+			{
+			strs << line;
+			strs >> line >> temp;
+			SwapMem = SwapMem + temp;
+			//Pout << strs.str() << " ";
+			}
+		
+		}
+	}
+	double SwapMB = (double)SwapMem/1024.0; //kB -> MB
+	double RssMB = (double)RssMem/1024.0;
+
+	inFile.close();
+
+	// set up communication between Procs and plot Stuff
+	Info << " RAM USAGE HISTOGRAM in MB" << endl;
+	plotHist(RssMB,"RSS memory used",numprocs,myrank);
+	if (SwapMem > 0) 
+	{
+		plotHist(SwapMB,"WARNING: Swap",numprocs,myrank);
+	}
+	Info << "===========================" << endl;
+
+	//Pout << "SWAP Memory used: " << SwapMem <<"MB\n";
+	//Pout << "Rss Memory used: " << RssMem <<"MB\n";
+	
+
+	return;
+}
 // * * * * * * * * * * * * * private Member Functions  * * * * * * * * * * * * //
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
diff --git a/src/lagrangian/cfdemParticle/subModels/clockModel/clockModel/clockModel.H b/src/lagrangian/cfdemParticle/subModels/clockModel/clockModel/clockModel.H
index 392767a9..1049ac69 100644
--- a/src/lagrangian/cfdemParticle/subModels/clockModel/clockModel/clockModel.H
+++ b/src/lagrangian/cfdemParticle/subModels/clockModel/clockModel/clockModel.H
@@ -130,8 +130,10 @@ public:
 	    void initElems();
 	    std::vector<int> calcShift() const;			//detects empty indices in vector, when times are evaluated
 	    void Hist() const;					//calc Histogram
-	    void normHist() const;				//calc normalized Histogram
+	    virtual void normHist() const;				//calc normalized Histogram
         void plotHist(double,std::string,int,int) const;    //plot histogramm to terminal
+    	void getRAMUsage() const;
+
 };
 
 
diff --git a/src/lagrangian/cfdemParticle/subModels/clockModel/noClock/noClock.C b/src/lagrangian/cfdemParticle/subModels/clockModel/noClock/noClock.C
index f1f2b682..550724fb 100644
--- a/src/lagrangian/cfdemParticle/subModels/clockModel/noClock/noClock.C
+++ b/src/lagrangian/cfdemParticle/subModels/clockModel/noClock/noClock.C
@@ -72,7 +72,6 @@ noClock::~noClock()
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
-
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 } // End namespace Foam
diff --git a/src/lagrangian/cfdemParticle/subModels/clockModel/noClock/noClock.H b/src/lagrangian/cfdemParticle/subModels/clockModel/noClock/noClock.H
index 002693e0..dc89ad22 100644
--- a/src/lagrangian/cfdemParticle/subModels/clockModel/noClock/noClock.H
+++ b/src/lagrangian/cfdemParticle/subModels/clockModel/noClock/noClock.H
@@ -77,13 +77,14 @@ public:
 
     // Member Functions
 
-	    virtual void start(int pos) const {};
-	    virtual void start(int pos,std::string identifier) const {};
-	    virtual void stop() const {};
-	    virtual void stop(std::string identifier) const {};
-	    virtual std::string eval() const {return "";};
-	    virtual void evalFile() const {};
-	    virtual void evalPar() const {};
+	    void start(int pos) const {};
+	    void start(int pos,std::string identifier) const {};
+	    void stop() const {};
+	    void stop(std::string identifier) const {};
+	    std::string eval() const {return "";};
+	    void evalFile() const {};
+	    void evalPar() const {};
+        void normHist() const {};
 };
 
 
diff --git a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/dataExchangeModel/dataExchangeModel.C b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/dataExchangeModel/dataExchangeModel.C
index d5225158..9aefceb5 100755
--- a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/dataExchangeModel/dataExchangeModel.C
+++ b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/dataExchangeModel/dataExchangeModel.C
@@ -63,6 +63,10 @@ void Foam::dataExchangeModel::allocateArray
     int length
 ) const
 {
+    // this model should only be used for VTK (and File exchange model)
+    //if(particleCloud_.dataExchangeM().type() != "oneWayVTK")
+    //    FatalError<< "dataExchangeModel::allocateArray should not be used with your dataExchangeModel" << abort(FatalError);
+    
     // allocate and init double array
     array = new double*[length];
     for (int i=0; i<length; i++)
@@ -88,10 +92,13 @@ void Foam::dataExchangeModel::allocateArray
     else FatalError<<"call allocateArray with length, nparticles or nbodies!\n" << abort(FatalError);
     allocateArray(array,initVal,width,len);
 }
-void Foam::dataExchangeModel::destroy(double** array) const
+void Foam::dataExchangeModel::destroy(double** array,int len) const
 {
     if (array == NULL) return;
-    delete [] array[0];
+
+    for ( int i = 0; i < len; i++ )
+        delete [] array[i];  
+
     delete [] array;
 }
 
@@ -105,6 +112,10 @@ void Foam::dataExchangeModel::allocateArray
     int length
 ) const
 {
+    // this model should only be used for VTK (and File exchange model)
+    //if(particleCloud_.dataExchangeM().type() != "oneWayVTK")
+    //    FatalError<< "dataExchangeModel::allocateArray should not be used with your dataExchangeModel" << abort(FatalError);
+
     // allocate and init double array
     array = new int*[length];
     for (int i=0; i<length; i++)
@@ -130,10 +141,13 @@ void Foam::dataExchangeModel::allocateArray
     else FatalError<<"call allocateArray with length, nparticles or nbodies!\n" << abort(FatalError);
     allocateArray(array,initVal,width,len);
 }
-void Foam::dataExchangeModel::destroy(int** array) const
+void Foam::dataExchangeModel::destroy(int** array,int len) const
 {
     if (array == NULL) return;
-    delete [] array[0];
+
+    for ( int i = 0; i < len; i++ )
+        delete [] array[i];  
+
     delete [] array;
 }
 //====
@@ -147,6 +161,10 @@ void Foam::dataExchangeModel::allocateArray
     int length
 ) const
 {
+    // this model should only be used for VTK (and File exchange model)
+    //if(particleCloud_.dataExchangeM().type() != "oneWayVTK")
+    //    FatalError<< "dataExchangeModel::allocateArray should not be used with your dataExchangeModel" << abort(FatalError);
+
     // allocate and init int array
     array = new int[length];
     for (int i=0; i<length; i++)
@@ -154,6 +172,7 @@ void Foam::dataExchangeModel::allocateArray
 }
 void Foam::dataExchangeModel::destroy(int* array) const
 {
+    if (array == NULL) return;
     delete [] array;
 }
 //====
@@ -167,6 +186,10 @@ void Foam::dataExchangeModel::allocateArray
     int length
 ) const
 {
+    // this model should only be used for VTK (and File exchange model)
+    //if(particleCloud_.dataExchangeM().type() != "oneWayVTK")
+    //    FatalError<< "dataExchangeModel::allocateArray should not be used with your dataExchangeModel" << abort(FatalError);
+
     // allocate and init double array
     array = new double[length];
     for (int i=0; i<length; i++)
@@ -174,6 +197,7 @@ void Foam::dataExchangeModel::allocateArray
 }
 void Foam::dataExchangeModel::destroy(double* array) const
 {
+    if (array == NULL) return;
     delete [] array;
 }
 //====
diff --git a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/dataExchangeModel/dataExchangeModel.H b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/dataExchangeModel/dataExchangeModel.H
index 94f0a95e..d3ff9d39 100755
--- a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/dataExchangeModel/dataExchangeModel.H
+++ b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/dataExchangeModel/dataExchangeModel.H
@@ -158,13 +158,13 @@ public:
         // double **
         virtual void allocateArray(double**&, double, int, int) const;
         virtual void allocateArray(double**&, double, int, const char* ="nparticles") const;
-        virtual void destroy(double**) const;
+        virtual void destroy(double**,int) const;
 
         //====
         // int **
         virtual void allocateArray(int**&, int, int, int) const;
         virtual void allocateArray(int**&, int, int, const char* ="nparticles") const;
-        virtual void destroy(int**) const;
+        virtual void destroy(int**,int) const;
         //====
 
         //====
diff --git a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayFiles/twoWayFiles.C b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayFiles/twoWayFiles.C
index bf9c244e..efd27f0d 100644
--- a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayFiles/twoWayFiles.C
+++ b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayFiles/twoWayFiles.C
@@ -33,7 +33,6 @@ Description
 
 #include "twoWayFiles.H"
 #include "addToRunTimeSelectionTable.H"
-
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
diff --git a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayM2M/twoWayM2M.C b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayM2M/twoWayM2M.C
index 5e8d8ce6..af14e66a 100644
--- a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayM2M/twoWayM2M.C
+++ b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayM2M/twoWayM2M.C
@@ -162,7 +162,7 @@ twoWayM2M::~twoWayM2M()
     delete[] id_foamLostAll;
     destroy(tmpI_);
     destroy(tmp_);
-    destroy(pos_lammps_);
+    destroy(pos_lammps_,3);
     delete lmp2foam_;
     delete lmp2foam_vec_;
     delete foam2lmp_vec_;
@@ -293,8 +293,9 @@ void Foam::twoWayM2M::allocateArray
         for (int j = 0; j < width; j++)
             array[i][j] = initVal;
 }
-void Foam::twoWayM2M::destroy(double** array) const
+void Foam::twoWayM2M::destroy(double** array,int len) const
 {
+    // destroy array[i] first?
     lmp->memory->destroy(array);
 }
 //============
@@ -328,8 +329,9 @@ void Foam::twoWayM2M::allocateArray
         for (int j = 0; j < width; j++)
             array[i][j] = initVal;
 }
-void Foam::twoWayM2M::destroy(int** array) const
+void Foam::twoWayM2M::destroy(int** array,int len) const
 {
+    // destroy array[i] first?
     lmp->memory->destroy(array);
 }
 //============
diff --git a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayM2M/twoWayM2M.H b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayM2M/twoWayM2M.H
index 88b888a3..7aa0188a 100644
--- a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayM2M/twoWayM2M.H
+++ b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayM2M/twoWayM2M.H
@@ -182,12 +182,12 @@ public:
         // double **
         void allocateArray(double**&, double, int, int) const;
         void allocateArray(double**&, double, int,const char* ="nparticles") const;
-        void destroy(double**) const;
+        void destroy(double**,int) const;
         //============
         // int **
         void allocateArray(int**&, int, int, int) const;
         void allocateArray(int**&, int, int,const char* ="nparticles") const;
-        void destroy(int**) const;
+        void destroy(int**,int) const;
         //==============
 
         //==============
diff --git a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayMPI/twoWayMPI.C b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayMPI/twoWayMPI.C
index a59ba8d4..4352ea1c 100644
--- a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayMPI/twoWayMPI.C
+++ b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayMPI/twoWayMPI.C
@@ -198,10 +198,14 @@ void Foam::twoWayMPI::allocateArray
     char* charLength= const_cast<char*> (length);
     allocate_external_double(array, width,charLength,initVal,lmp);
 }
-void Foam::twoWayMPI::destroy(double** array) const
+void Foam::twoWayMPI::destroy(double** array,int len) const
 {
     if (array == NULL) return;
-    free(array[0]);
+
+    //for ( int i = 0; i < len; i++ ) // does not work
+    for ( int i = 0; i < 1; i++ )
+        free(array[i]); 
+
     free(array);
 }
 //============
@@ -230,10 +234,28 @@ void Foam::twoWayMPI::allocateArray
     char* charLength= const_cast<char*> (length);
     allocate_external_int(array, width,charLength,initVal,lmp);
 }
-void Foam::twoWayMPI::destroy(int** array) const
+void Foam::twoWayMPI::destroy(int** array,int len) const
+{
+    if (array == NULL) return;
+
+    //for ( int i = 0; i < len; i++ ) // does not work
+    for ( int i = 0; i < 1; i++ )
+        free(array[i]); 
+
+    free(array);
+}
+//============
+// int *
+void Foam::twoWayMPI::destroy(int* array) const
+{
+    if (array == NULL) return;
+    free(array);
+}
+//============
+// double *
+void Foam::twoWayMPI::destroy(double* array) const
 {
     if (array == NULL) return;
-    free(array[0]);
     free(array);
 }
 //============
diff --git a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayMPI/twoWayMPI.H b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayMPI/twoWayMPI.H
index d006458c..0cd9bdba 100644
--- a/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayMPI/twoWayMPI.H
+++ b/src/lagrangian/cfdemParticle/subModels/dataExchangeModel/twoWayMPI/twoWayMPI.H
@@ -143,12 +143,18 @@ public:
         // double **
         void allocateArray(double**&, double, int, int) const;
         void allocateArray(double**&, double, int,const char* ="nparticles") const;
-        void destroy(double**) const;
+        void destroy(double**,int) const;
         //============
         // int **
         void allocateArray(int**&, int, int, int) const;
         void allocateArray(int**&, int, int,const char* ="nparticles") const;
-        void destroy(int**) const;
+        void destroy(int**,int) const;
+        //==============
+        // double *
+        void destroy(double*) const;
+        //============
+        // int **
+        void destroy(int*) const;
         //==============
 
         bool couple() const;
diff --git a/src/lagrangian/cfdemParticle/subModels/voidFractionModel/voidFractionModel/voidFractionModel.C b/src/lagrangian/cfdemParticle/subModels/voidFractionModel/voidFractionModel/voidFractionModel.C
index 94cc822d..e5ec3e31 100644
--- a/src/lagrangian/cfdemParticle/subModels/voidFractionModel/voidFractionModel/voidFractionModel.C
+++ b/src/lagrangian/cfdemParticle/subModels/voidFractionModel/voidFractionModel/voidFractionModel.C
@@ -94,7 +94,7 @@ voidFractionModel::voidFractionModel
 
 voidFractionModel::~voidFractionModel()
 {
-    particleCloud_.dataExchangeM().destroy(cellsPerParticle_);
+    particleCloud_.dataExchangeM().destroy(cellsPerParticle_,1);
 }
 
 // * * * * * * * * * * * * * * public Member Functions  * * * * * * * * * * * * * //
diff --git a/tutorials/cfdemPostproc/fillCylinder/Allrun.sh b/tutorials/cfdemPostproc/fillCylinder/Allrun.sh
index cae4aacb..f7a8bc58 100755
--- a/tutorials/cfdemPostproc/fillCylinder/Allrun.sh
+++ b/tutorials/cfdemPostproc/fillCylinder/Allrun.sh
@@ -46,7 +46,7 @@ if [ $liggghtsSim == "true" ]
 
     #- generate VTK data
     cd $casePath/DEM/post
-    python -i $CFDEM_LPP_DIR/lpp.py  dump.liggghts_init
+    python $CFDEM_LPP_DIR/lpp.py  dump.liggghts_init
 
 fi
 
@@ -58,7 +58,7 @@ if [ $cfdemPostProc == "true" ]
     headerText="run_cfdemPostproc_fillCylinder_CFD"
     logfileName="log_$headerText"
     solverName="cfdemPostproc"
-    debugMode="off"          # on | off
+    debugMode="off"          # on | off | strict
     #--------------------------------------------------------------------------------#
 
     #- clean up case
@@ -90,7 +90,6 @@ rm -r $casePath/CFD/particles
 rm -r $casePath/CFD/VTK
 rm -r $casePath/DEM/post/*
 rm -r $casePath/DEM/log.*
-rm -r $casePath/log*
 echo "done"
 
 #- preserve post directory
diff --git a/tutorials/cfdemSolverPiso/ErgunTestMPI/CFD/system/controlDict b/tutorials/cfdemSolverPiso/ErgunTestMPI/CFD/system/controlDict
index 84219dac..b550dd41 100644
--- a/tutorials/cfdemSolverPiso/ErgunTestMPI/CFD/system/controlDict
+++ b/tutorials/cfdemSolverPiso/ErgunTestMPI/CFD/system/controlDict
@@ -23,7 +23,7 @@ startTime       0;
 
 stopAt          endTime;
 
-endTime         0.1;//0.01;
+endTime         0.1;//0.1;
 
 deltaT          0.001;
 
diff --git a/tutorials/cfdemSolverPiso/ErgunTestMPI/DEM/liggghts.restart b/tutorials/cfdemSolverPiso/ErgunTestMPI/DEM/liggghts.restart
index b42fba18..015fc1f0 100644
Binary files a/tutorials/cfdemSolverPiso/ErgunTestMPI/DEM/liggghts.restart and b/tutorials/cfdemSolverPiso/ErgunTestMPI/DEM/liggghts.restart differ
diff --git a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/Allrun.sh b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/Allrun.sh
index 90d8d867..a5fb18b5 100755
--- a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/Allrun.sh
+++ b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/Allrun.sh
@@ -107,6 +107,7 @@ rm -rf $casePath/CFD/patchAverage_pressureDrop
 rm -rf $casePath/CFD/probes
 rm -rf $casePath/CFD/particles
 rm -r $casePath/CFD/log.*
+rm -r $casePath/CFD/lagrangian
 rm $casePath/log.liggghts
 rm $casePath/DEM/liggghts.restartCFDEM*
 rm $casePath/DEM/post/dump.*
diff --git a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/constant/liggghtsCommands_init b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/constant/liggghtsCommands_init
index 4b17c060..07d5447b 100644
--- a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/constant/liggghtsCommands_init
+++ b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/constant/liggghtsCommands_init
@@ -29,12 +29,12 @@ liggghtsCommandModels
     writeLiggghts
 );
 
-/*
+
 //- optional
 writeLiggghtsProps
 {
-    writeLast on;   // off is not recommended
-    overwrite on;   
-}*/
+    writeLast off;
+    overwrite off;   
+}
 
 // ************************************************************************* //
diff --git a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/system/controlDict b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/system/controlDict
index 820de536..672e8e74 100644
--- a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/system/controlDict
+++ b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/system/controlDict
@@ -29,7 +29,7 @@ deltaT          0.001;
 
 writeControl    adjustableRunTime;
 
-writeInterval   0.001;//0.01;
+writeInterval   0.01;//0.01;
 
 purgeWrite      0;
 
diff --git a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/system/controlDict_init b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/system/controlDict_init
index 0a199a10..02f3633a 100644
--- a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/system/controlDict_init
+++ b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/system/controlDict_init
@@ -29,7 +29,7 @@ deltaT          0.001;
 
 writeControl    adjustableRunTime;
 
-writeInterval   0.001;//0.01;
+writeInterval   0.01;//0.01;
 
 purgeWrite      0;
 
diff --git a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/system/controlDict_restart b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/system/controlDict_restart
index 820de536..672e8e74 100644
--- a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/system/controlDict_restart
+++ b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/CFD/system/controlDict_restart
@@ -29,7 +29,7 @@ deltaT          0.001;
 
 writeControl    adjustableRunTime;
 
-writeInterval   0.001;//0.01;
+writeInterval   0.01;//0.01;
 
 purgeWrite      0;
 
diff --git a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/DEM/in.liggghts_restart b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/DEM/in.liggghts_restart
index 17651640..e13e6f8e 100644
--- a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/DEM/in.liggghts_restart
+++ b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/DEM/in.liggghts_restart
@@ -11,7 +11,8 @@ units		si
 processors	2 1 1
 
 #read the restart file
-read_restart 	../DEM/liggghts.restartCFDEM
+#read_restart 	../DEM/liggghts.restartCFDEM
+read_restart 	../DEM/liggghts.restartCFDEM_0.050000
 
 #do not do this here, the simulation box is in the restart file!
 #region		reg block -0.015 0.015 -0.015 0.015 -0.001 0.0554 units box
diff --git a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/DEM/liggghts.restart b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/DEM/liggghts.restart
index fbbeb42d..015fc1f0 100644
Binary files a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/DEM/liggghts.restart and b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/DEM/liggghts.restart differ
diff --git a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/DEM/post/dummy b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/DEM/post/dummy
index c20f250d..93cbd9a9 100644
--- a/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/DEM/post/dummy
+++ b/tutorials/cfdemSolverPiso/ErgunTestMPI_restart/DEM/post/dummy
@@ -27,3 +27,11 @@ dummyfile
 dummyfile
 dummyfile
 dummyfile
+dummyfile
+dummyfile
+dummyfile
+dummyfile
+dummyfile
+dummyfile
+dummyfile
+dummyfile
diff --git a/tutorials/cfdemSolverPiso/settlingTestMPI/CFD/constant/couplingProperties b/tutorials/cfdemSolverPiso/settlingTestMPI/CFD/constant/couplingProperties
index 8b929d6a..56342556 100755
--- a/tutorials/cfdemSolverPiso/settlingTestMPI/CFD/constant/couplingProperties
+++ b/tutorials/cfdemSolverPiso/settlingTestMPI/CFD/constant/couplingProperties
@@ -32,7 +32,7 @@ couplingInterval 100;
 
 voidFractionModel divided;//centre;//bigParticle;//
 
-locateModel turboEngineM2M;//standard;
+locateModel engine;//standard;
 
 meshMotionModel noMeshMotion;
 
@@ -40,7 +40,7 @@ regionModel allRegion;
 
 IOModel basicIO; //trackIO; // 
 
-dataExchangeModel twoWayM2M;//twoWayMPI;//twoWayFiles;//oneWayVTK;//
+dataExchangeModel twoWayMPI;//twoWayFiles;//oneWayVTK;//
 
 averagingModel dense;//dilute;//
 
@@ -123,11 +123,6 @@ twoWayMPIProps
     liggghtsPath "../DEM/in.liggghts_init";
 }
 
-twoWayM2MProps
-{
-    liggghtsPath "../DEM/in.liggghts_init";
-}
-
 twoWayFilesProps
 {
     maxNumberOfParticles 10000;
@@ -152,11 +147,9 @@ bigParticleProps
     scaleUpVol 1.0;
 }
 
-turboEngineM2MProps
+engineProps
 {
-    turboEngineProps
-    {
         treeSearch true;
-    }
 }
+
 // ************************************************************************* //
diff --git a/tutorials/cfdemSolverPisoScalar/packedBedTemp/DEM/liggghts.restart b/tutorials/cfdemSolverPisoScalar/packedBedTemp/DEM/liggghts.restart
index ac58871e..140dfa7d 100644
Binary files a/tutorials/cfdemSolverPisoScalar/packedBedTemp/DEM/liggghts.restart and b/tutorials/cfdemSolverPisoScalar/packedBedTemp/DEM/liggghts.restart differ