Chaste Commit::ca8ccdedf819b6e02855bc0e8e6f50bdecbc5208
ParallelColumnDataWriter.cpp
1/*
2
3Copyright (c) 2005-2024, University of Oxford.
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10This file is part of Chaste.
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15 this list of conditions and the following disclaimer.
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19 * Neither the name of the University of Oxford nor the names of its
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23THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
24AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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34*/
35
36#include "ParallelColumnDataWriter.hpp"
37#include "Exception.hpp"
38#include "DistributedVectorFactory.hpp"
39
41 const std::string& rBaseName,
42 bool cleanDirectory)
43 : ColumnDataWriter(rDirectory, rBaseName, cleanDirectory),
44 mConcentrated(nullptr)
45{
46 int num_procs;
47 MPI_Comm_size(PETSC_COMM_WORLD, &num_procs);
48 if (num_procs==1)
49 {
50 mIsParallel = false;
51 }
52 else
53 {
54 mIsParallel = true;
55 }
56}
57
58void ParallelColumnDataWriter::PutVector(int variableID, Vec petscVector)
59{
60 int size;
61 VecGetSize(petscVector,&size);
62
63 if (size != mFixedDimensionSize)
64 {
65 EXCEPTION("Size of vector does not match FixedDimensionSize.");
66 }
67
68 // Construct the appropriate "scatter" object to concentrate the vector on the master
69 if (mConcentrated==nullptr)
70 {
71 VecScatterCreateToZero(petscVector, &mToMaster, &mConcentrated);
72 }
73
74// int size2;
75// VecGetSize(mConcentrated, &size2);
76// std::cout << "Vector size=" << size << "," << size2 << std::endl << std::flush;
77
78//PETSc-3.x.x or PETSc-2.3.3
79#if ((PETSC_VERSION_MAJOR == 3) || (PETSC_VERSION_MAJOR == 2 && PETSC_VERSION_MINOR == 3 && PETSC_VERSION_SUBMINOR == 3)) //2.3.3 or 3.x.x
80 VecScatterBegin(mToMaster, petscVector, mConcentrated, INSERT_VALUES, SCATTER_FORWARD);
81 VecScatterEnd(mToMaster, petscVector, mConcentrated, INSERT_VALUES, SCATTER_FORWARD);
82#else
83 VecScatterBegin(petscVector, mConcentrated, INSERT_VALUES, SCATTER_FORWARD, mToMaster);
84 VecScatterEnd(petscVector, mConcentrated, INSERT_VALUES, SCATTER_FORWARD, mToMaster);
85#endif
86
87// std::cout << "Done scatter" << std::endl << std::flush;
88
90 {
91 double *concentrated_vector;
92 VecGetArray(mConcentrated, &concentrated_vector);
93 for (int i=0; i<size; i++)
94 {
95 ColumnDataWriter::PutVariable(variableID, concentrated_vector[i], i);
96 }
97 VecRestoreArray(mConcentrated, &concentrated_vector);
98 }
99}
100
102{
103 // Put the stripe into its own 'unstriped' vector
104 DistributedVectorFactory* p_factory = rStripe.GetFactory();
105 Vec unstriped_petsc = p_factory->CreateVec();
106 DistributedVector unstriped = p_factory->CreateDistributedVector(unstriped_petsc);
107 for (DistributedVector::Iterator index = unstriped.Begin();
108 index!= unstriped.End();
109 ++index)
110 {
111 unstriped[index] = rStripe[index];
112 }
113
114 // Put the unstriped vector
115 ParallelColumnDataWriter::PutVector(variableId, unstriped_petsc);
116 PetscTools::Destroy(unstriped_petsc);
117}
118
120{
122 {
124 }
125 else
126 {
127 mIsInDefineMode = false;
128 }
129}
130
139void ParallelColumnDataWriter::PutVariable(int variableID, double variableValue, long dimensionPosition)
140{
142 {
143 // Master process is allowed to write
144 ColumnDataWriter::PutVariable(variableID, variableValue, dimensionPosition);
145 }
146}
147
149{
150 if (mConcentrated != nullptr)
151 {
152 VecScatterDestroy(PETSC_DESTROY_PARAM(mToMaster));
154 }
155 Close();
156}
157
159{
160 // Paranoia
161 PetscTools::Barrier("ParallelColumnDataWriter::AdvanceAlongUnlimitedDimension");
162
164 {
166 }
167}
168
170{
171 // Paranoia
172 PetscTools::Barrier("ParallelColumnDataWriter::Close");
173
175 {
177 }
178}
#define EXCEPTION(message)
#define PETSC_DESTROY_PARAM(x)
virtual void EndDefineMode()
void DoAdvanceAlongUnlimitedDimension()
virtual void PutVariable(int variableID, double variableValue, long dimensionPosition=-1)
DistributedVector CreateDistributedVector(Vec vec, bool readOnly=false)
DistributedVectorFactory * GetFactory()
ParallelColumnDataWriter(const std::string &rDirectory, const std::string &rBaseName, bool cleanDirectory=true)
void PutVectorStripe(int variableId, DistributedVector::Stripe &rStripe)
void PutVariable(int variableID, double variableValue, long dimensionPosition=-1)
void PutVector(int variableID, Vec petscVector)
static void Destroy(Vec &rVec)
static bool AmMaster()
static void Barrier(const std::string callerId="")