From 94d3e79a8617f88dc0219cfdeedfa3147833719d Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Mon, 24 Jun 2019 14:43:36 +0200
Subject: Initialize at openlb-1-3

---
 src/core/latticeStatistics.hh | 344 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 344 insertions(+)
 create mode 100644 src/core/latticeStatistics.hh

(limited to 'src/core/latticeStatistics.hh')

diff --git a/src/core/latticeStatistics.hh b/src/core/latticeStatistics.hh
new file mode 100644
index 0000000..9fd15b2
--- /dev/null
+++ b/src/core/latticeStatistics.hh
@@ -0,0 +1,344 @@
+/*  This file is part of the OpenLB library
+ *
+ *  Copyright (C) 2006, 2007, 2008 Jonas Latt
+ *  E-mail contact: info@openlb.net
+ *  The most recent release of OpenLB can be downloaded at
+ *  <http://www.openlb.net/>
+ *
+ *  This program 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 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program 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 this program; if not, write to the Free
+ *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+*/
+
+#ifndef LATTICE_STATISTICS_HH
+#define LATTICE_STATISTICS_HH
+
+#include "blockLattice2D.h"
+#include "blockLattice3D.h"
+#include "latticeStatistics.h"
+#include <cmath>
+#include <numeric>
+#include <limits>
+#include "util.h"
+
+namespace olb {
+
+////////////////////// Class LatticeStatistics /////////////////
+
+template<typename T>
+LatticeStatistics<T>::LatticeStatistics() : clout(std::cout,"LatticeStatistics")
+{
+  initialize();
+}
+
+template<typename T>
+LatticeStatistics<T>::~LatticeStatistics()
+{
+}
+
+template<typename T>
+void LatticeStatistics<T>::reset()
+{
+  // avoid division by zero
+  if (tmpNumCells == 0) {
+    for (unsigned iVect=0; iVect<averageVect.size(); ++iVect) {
+      averageVect[iVect] = T();
+    }
+    for (unsigned iVect=0; iVect<sumVect.size(); ++iVect) {
+      sumVect[iVect] = T();
+    }
+    for (unsigned iVect=0; iVect<minVect.size(); ++iVect) {
+      minVect[iVect] = T();
+    }
+    for (unsigned iVect=0; iVect<maxVect.size(); ++iVect) {
+      maxVect[iVect] = T();
+    }
+    numCells = 0;
+    firstCall = false;
+  } else {
+    // The average density is actually used in the "ConstRhoBgk" model.
+    // Depending on the simulation setup, it is possible that it has
+    // a nonsensical value before the simulation is started. For this
+    // and similar cases, averages are initialized to 1.
+    if (firstCall) {
+      for (unsigned iVect=0; iVect<averageVect.size(); ++iVect) {
+        averageVect[iVect] = (T)1;
+      }
+      firstCall = false;
+    } else {
+      for (unsigned iVect=0; iVect<averageVect.size(); ++iVect) {
+        averageVect[iVect] = tmpAv[iVect] / (T)tmpNumCells;
+      }
+    }
+    for (unsigned iVect=0; iVect<sumVect.size(); ++iVect) {
+      sumVect[iVect] = tmpSum[iVect];
+    }
+    for (unsigned iVect=0; iVect<minVect.size(); ++iVect) {
+      minVect[iVect] = tmpMin[iVect];
+    }
+    for (unsigned iVect=0; iVect<maxVect.size(); ++iVect) {
+      maxVect[iVect] = tmpMax[iVect];
+    }
+    averageVect[avEnergy] *= (T)0.5; // energy is 0.5 *uSqr
+    maxVect[maxU]         = sqrt(maxVect[maxU]); // u is sqrt(uSqr)
+    numCells              = tmpNumCells;
+  }
+
+  for (unsigned iVect=0; iVect<averageVect.size(); ++iVect) {
+    tmpAv[iVect]    = T();
+  }
+  for (unsigned iVect=0; iVect<sumVect.size(); ++iVect) {
+    tmpSum[iVect]   = T();
+  }
+  for (unsigned iVect=0; iVect<minVect.size(); ++iVect) {
+    tmpMin[iVect]   = std::numeric_limits<T>::max();
+  }
+  for (unsigned iVect=0; iVect<maxVect.size(); ++iVect) {
+    tmpMax[iVect]   = std::numeric_limits<T>::min();
+  }
+
+  tmpNumCells     = 0;
+}
+
+template<typename T>
+void LatticeStatistics<T>::reset (
+  T average_rho_, T average_energy_, T maxU_, size_t numCells_ )
+{
+  averageVect[avRho]    = average_rho_;
+  averageVect[avEnergy] = average_energy_;
+  maxVect[maxU]         = maxU_;
+  numCells              = numCells_;
+
+  tmpAv[avRho]    = T();
+  tmpAv[avEnergy] = T();
+  tmpMax[maxU]    = T();
+  tmpNumCells     = 0;
+}
+
+template<typename T>
+void LatticeStatistics<T>::initialize()
+{
+  tmpAv.resize(2);
+  averageVect.resize(2);
+  tmpMax.resize(1);
+  maxVect.resize(1);
+
+  tmpAv[avRho]    = T();
+  tmpAv[avEnergy] = T();
+  tmpMax[maxU]    = T();
+  tmpNumCells     = 0;
+
+  averageVect[avRho]    = (T)1;
+  averageVect[avEnergy] = T();
+  maxVect[maxU]         = T();
+
+  firstCall = true;
+
+  resetTime();
+}
+
+template<typename T>
+int LatticeStatistics<T>::subscribeAverage()
+{
+  int newSize = tmpAv.size()+1;
+  tmpAv.resize(newSize);
+  averageVect.resize(newSize);
+  return newSize-1;
+}
+
+template<typename T>
+int LatticeStatistics<T>::subscribeSum()
+{
+  int newSize = tmpSum.size()+1;
+  tmpSum.resize(newSize);
+  sumVect.resize(newSize);
+  return newSize-1;
+}
+
+template<typename T>
+int LatticeStatistics<T>::subscribeMin()
+{
+  int newSize = tmpMin.size()+1;
+  tmpMin.resize(newSize);
+  minVect.resize(newSize);
+  return newSize-1;
+}
+
+template<typename T>
+int LatticeStatistics<T>::subscribeMax()
+{
+  int newSize = tmpMax.size()+1;
+  tmpMax.resize(newSize);
+  maxVect.resize(newSize);
+  return newSize-1;
+}
+
+template<typename T>
+void LatticeStatistics<T>::incrementStats(T rho, T uSqr)
+{
+  tmpAv[avRho]    += rho;
+  tmpAv[avEnergy] += uSqr;
+  if (uSqr > tmpMax[maxU]) {
+    tmpMax[maxU] = uSqr;
+  }
+  ++tmpNumCells;
+}
+
+template<typename T>
+void LatticeStatistics<T>::gatherAverage(int whichAverage, T value)
+{
+  OLB_PRECONDITION( whichAverage < (int) tmpAv.size() );
+  tmpAv[whichAverage] += value;
+}
+
+template<typename T>
+void LatticeStatistics<T>::gatherSum(int whichSum, T value)
+{
+  OLB_PRECONDITION( whichSum < (int) tmpSum.size() );
+  tmpSum[whichSum] += value;
+}
+
+template<typename T>
+void LatticeStatistics<T>::gatherMin(int whichMin, T value)
+{
+  OLB_PRECONDITION( whichMin < (int) tmpMin.size() );
+  if (value < tmpMin[whichMin]) {
+    tmpMin[whichMin] = value;
+  }
+}
+
+template<typename T>
+void LatticeStatistics<T>::gatherMax(int whichMax, T value)
+{
+  OLB_PRECONDITION( whichMax < (int) tmpMax.size() );
+  if (value > tmpMax[whichMax]) {
+    tmpMax[whichMax] = value;
+  }
+}
+
+template<typename T>
+void LatticeStatistics<T>::incrementStats()
+{
+  ++tmpNumCells;
+}
+
+template<typename T>
+T LatticeStatistics<T>::getAverageRho() const
+{
+  return averageVect[avRho];
+}
+
+template<typename T>
+T LatticeStatistics<T>::getAverageEnergy() const
+{
+  return averageVect[avEnergy];
+}
+
+template<typename T>
+T LatticeStatistics<T>::getMaxU() const
+{
+  return maxVect[maxU];
+}
+
+template<typename T>
+size_t const& LatticeStatistics<T>::getNumCells() const
+{
+  return numCells;
+}
+
+template<typename T>
+T LatticeStatistics<T>::getAverage(int whichAverage) const
+{
+  OLB_PRECONDITION( whichAverage < (int) tmpAv.size() );
+  return averageVect[whichAverage];
+}
+
+template<typename T>
+T LatticeStatistics<T>::getSum(int whichSum) const
+{
+  OLB_PRECONDITION( whichSum < (int) tmpSum.size() );
+  return sumVect[whichSum];
+}
+
+template<typename T>
+T LatticeStatistics<T>::getMin(int whichMin) const
+{
+  OLB_PRECONDITION( whichMin < (int) tmpMin.size() );
+  return minVect[whichMin];
+}
+
+template<typename T>
+T LatticeStatistics<T>::getMax(int whichMax) const
+{
+  OLB_PRECONDITION( whichMax < (int) tmpMax.size() );
+  return maxVect[whichMax];
+}
+
+template<typename T>
+std::vector<T>& LatticeStatistics<T>::getAverageVect()
+{
+  return averageVect;
+}
+
+template<typename T>
+std::vector<T>& LatticeStatistics<T>::getSumVect()
+{
+  return sumVect;
+}
+
+template<typename T>
+std::vector<T>& LatticeStatistics<T>::getMinVect()
+{
+  return minVect;
+}
+
+template<typename T>
+std::vector<T>& LatticeStatistics<T>::getMaxVect()
+{
+  return maxVect;
+}
+
+template<typename T>
+void LatticeStatistics<T>::incrementTime()
+{
+  ++latticeTime;
+}
+
+template<typename T>
+void LatticeStatistics<T>::resetTime(size_t value)
+{
+  latticeTime=value;
+}
+
+template<typename T>
+size_t LatticeStatistics<T>::getTime() const
+{
+  return latticeTime;
+}
+
+template<typename T>
+void LatticeStatistics<T>::print(int iterationStep, T physicalTime) const
+{
+  clout
+      << "step=" << iterationStep << "; "
+      << "t=" << physicalTime << "; "
+      << "uMax=" << getMaxU() << "; "
+      << "avEnergy=" << getAverageEnergy() << "; "
+      << "avRho=" << getAverageRho()
+      << std::endl;
+}
+
+}  // namespace olb
+
+#endif
-- 
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