LBPM/IO/HDF5Writer.cpp
2021-11-03 12:11:27 -04:00

284 lines
11 KiB
C++

#include "IO/HDF5_IO.h"
#include "IO/IOHelpers.h"
#include "IO/MeshDatabase.h"
#include "IO/Writer.h"
#include "IO/Xdmf.h"
#include "common/MPI.h"
#include "common/Utilities.h"
#include <algorithm>
#include <memory>
#include <set>
#include <sys/stat.h>
#include <vector>
#ifdef USE_HDF5
std::string to_string( const ArraySize &s )
{
std::string out = "[" + std::to_string( s[0] );
for ( size_t i = 1; i < s.ndim(); i++ )
out += "," + to_string( s[i] );
out += "]";
return out;
}
Xdmf::Center getXdmfType( IO::VariableType type )
{
if ( type == IO::VariableType::NodeVariable ) {
return Xdmf::Center::Node;
} else if ( type == IO::VariableType::VolumeVariable ) {
return Xdmf::Center::Cell;
} else {
ERROR( "Variable type not supported" );
}
return Xdmf::Center::Null;
}
// Write a PointList mesh (and variables) to a file
template<class TYPE>
static void writeCoordinates( hid_t fid, const std::vector<Point> &points )
{
std::vector<TYPE> x( points.size() ), y( points.size() ), z( points.size() );
for ( size_t i = 0; i < x.size(); i++ ) {
x[i] = points[i].x;
y[i] = points[i].y;
z[i] = points[i].z;
}
IO::HDF5::writeHDF5( fid, "x", x );
IO::HDF5::writeHDF5( fid, "y", y );
IO::HDF5::writeHDF5( fid, "z", z );
}
static void writeHDF5PointList( hid_t fid, const std::string &filename,
const IO::MeshDataStruct &meshData, IO::MeshDatabase database, Xdmf &xmf )
{
auto meshname = database.domains[0].name;
const auto &mesh = dynamic_cast<IO::PointList &>( *meshData.mesh );
auto gid = IO::HDF5::createGroup( fid, meshname );
if ( meshData.precision == IO::DataType::Double ) {
writeCoordinates<double>( gid, mesh.getPoints() );
} else if ( meshData.precision == IO::DataType::Float ) {
writeCoordinates<float>( gid, mesh.getPoints() );
} else {
ERROR( "Unsupported format" );
}
auto path = filename + ":/" + meshname + "/";
auto domain = Xdmf::createPointMesh(
meshname, 3, mesh.getPoints().size(), path + "x", path + "y", path + "z" );
for ( size_t i = 0; i < meshData.vars.size(); i++ ) {
auto &var = *meshData.vars[i];
auto data = var.data;
auto rankType = Xdmf::RankType::Null;
if ( data.ndim() == 1 ) {
rankType = Xdmf::RankType::Scalar;
} else if ( data.ndim() == 2 && data.size( 1 ) == 3 ) {
// Vector data, need to permute for visit
rankType = Xdmf::RankType::Vector;
data = data.permute( { 1, 0 } );
} else {
ERROR( "Unable to determine variable rank: " + to_string( var.data.size() ) );
}
if ( var.precision == IO::DataType::Double ) {
IO::HDF5::writeHDF5( gid, var.name, data );
} else if ( var.precision == IO::DataType::Float ) {
IO::HDF5::writeHDF5( gid, var.name, data.cloneTo<float>() );
} else if ( var.precision == IO::DataType::Int ) {
IO::HDF5::writeHDF5( gid, var.name, data.cloneTo<int>() );
} else {
ERROR( "Unsupported format" );
}
domain.addVariable(
meshname, var.name, data.size(), rankType, Xdmf::Center::Node, path + var.name );
}
xmf.addMesh( meshData.meshName, domain );
}
// Write a TriMesh mesh (and variables) to a file
static void writeHDF5TriMesh2( hid_t fid, const std::string &filename,
const IO::MeshDataStruct &meshData, const IO::TriMesh &mesh, IO::MeshDatabase database,
Xdmf &xmf )
{
auto meshname = database.domains[0].name;
auto gid = IO::HDF5::createGroup( fid, meshname );
auto path = filename + ":/" + meshname + "/";
// Write the verticies
if ( meshData.precision == IO::DataType::Double ) {
writeCoordinates<double>( gid, mesh.vertices->getPoints() );
} else if ( meshData.precision == IO::DataType::Float ) {
writeCoordinates<float>( gid, mesh.vertices->getPoints() );
} else {
ERROR( "Unsupported format" );
}
// Write the connectivity
Array<int> tri( 3, mesh.A.size() );
for ( size_t i = 0; i < mesh.A.size(); i++ ) {
tri( 0, i ) = mesh.A[i];
tri( 1, i ) = mesh.B[i];
tri( 2, i ) = mesh.C[i];
}
IO::HDF5::writeHDF5( gid, "tri", tri );
auto domain =
Xdmf::createUnstructuredMesh( meshname, 3, Xdmf::TopologyType::Triangle, tri.size( 1 ),
path + "tri", mesh.vertices->getPoints().size(), path + "x", path + "y", path + "z" );
// Write the variables
for ( size_t i = 0; i < meshData.vars.size(); i++ ) {
auto &var = *meshData.vars[i];
auto data = var.data;
auto rankType = Xdmf::RankType::Null;
if ( data.ndim() == 1 ) {
rankType = Xdmf::RankType::Scalar;
} else if ( data.ndim() == 2 && data.size( 1 ) == 3 ) {
// Vector data, need to permute for visit
rankType = Xdmf::RankType::Vector;
data = data.permute( { 1, 0 } );
} else {
ERROR( "Unable to determine variable rank: " + to_string( var.data.size() ) );
}
if ( var.precision == IO::DataType::Double ) {
IO::HDF5::writeHDF5( gid, var.name, data );
} else if ( var.precision == IO::DataType::Float ) {
IO::HDF5::writeHDF5( gid, var.name, data.cloneTo<float>() );
} else if ( var.precision == IO::DataType::Int ) {
IO::HDF5::writeHDF5( gid, var.name, data.cloneTo<int>() );
} else {
ERROR( "Unsupported format" );
}
domain.addVariable(
meshname, var.name, data.size(), rankType, getXdmfType( var.type ), path + var.name );
}
xmf.addMesh( meshData.meshName, domain );
}
static void writeHDF5TriMesh( hid_t fid, const std::string &filename,
const IO::MeshDataStruct &meshData, IO::MeshDatabase database, Xdmf &xmf )
{
const IO::TriMesh &mesh = dynamic_cast<IO::TriMesh &>( *meshData.mesh );
writeHDF5TriMesh2( fid, filename, meshData, mesh, database, xmf );
}
static void writeHDF5TriList( hid_t fid, const std::string &filename,
const IO::MeshDataStruct &meshData, IO::MeshDatabase database, Xdmf &xmf )
{
auto mesh = getTriMesh( meshData.mesh );
writeHDF5TriMesh2( fid, filename, meshData, *mesh, database, xmf );
}
// Write a DomainMesh mesh (and variables) to a file
static void writeHDF5DomainMesh( hid_t fid, const std::string &filename,
const IO::MeshDataStruct &meshData, IO::MeshDatabase database, Xdmf &xmf )
{
auto &mesh = dynamic_cast<IO::DomainMesh &>( *meshData.mesh );
auto meshname = database.domains[0].name;
auto gid = IO::HDF5::createGroup( fid, meshname );
auto path = filename + ":/" + meshname + "/";
// Write the mesh
RankInfoStruct info( mesh.rank, mesh.nprocx, mesh.nprocy, mesh.nprocz );
std::vector<double> range = { info.ix * mesh.Lx / info.nx, ( info.ix + 1 ) * mesh.Lx / info.nx,
info.jy * mesh.Ly / info.ny, ( info.jy + 1 ) * mesh.Ly / info.ny,
info.kz * mesh.Lz / info.nz, ( info.kz + 1 ) * mesh.Lz / info.nz };
std::vector<int> N = { mesh.nx, mesh.ny, mesh.nz };
std::vector<int> rankinfo = { mesh.rank, mesh.nprocx, mesh.nprocy, mesh.nprocz };
IO::HDF5::writeHDF5( gid, "range", range );
IO::HDF5::writeHDF5( gid, "N", N );
IO::HDF5::writeHDF5( gid, "rankinfo", rankinfo );
// xmf.addUniformMesh( meshname, range, ArraySize( N[0], N[1], N[2] ) );
// Write a curvilinear mesh due to bug with vector data on nodes loading into visit
Array<float> x( N[0] + 1, N[1] + 1, N[2] + 1 );
Array<float> y( N[0] + 1, N[1] + 1, N[2] + 1 );
Array<float> z( N[0] + 1, N[1] + 1, N[2] + 1 );
double dx = ( range[1] - range[0] ) / N[0];
double dy = ( range[3] - range[2] ) / N[1];
double dz = ( range[5] - range[4] ) / N[2];
for ( int k = 0; k <= N[2]; k++ ) {
for ( int j = 0; j <= N[1]; j++ ) {
for ( int i = 0; i <= N[0]; i++ ) {
x( i, j, k ) = range[0] + dx * i;
y( i, j, k ) = range[2] + dy * j;
z( i, j, k ) = range[4] + dz * k;
}
}
}
IO::HDF5::writeHDF5( gid, "x", x );
IO::HDF5::writeHDF5( gid, "y", y );
IO::HDF5::writeHDF5( gid, "z", z );
auto domain = Xdmf::createCurvilinearMesh(
meshname, ArraySize( N[0], N[1], N[2] ), path + "x", path + "y", path + "z" );
// Write the variables
for ( size_t i = 0; i < meshData.vars.size(); i++ ) {
auto &var = *meshData.vars[i];
auto data = var.data;
auto rankType = Xdmf::RankType::Null;
if ( data.ndim() == 3 ) {
rankType = Xdmf::RankType::Scalar;
} else if ( data.ndim() == 4 && data.size( 3 ) == 3 ) {
// Vector data, need to permute for visit
rankType = Xdmf::RankType::Vector;
data = data.permute( { 3, 0, 1, 2 } );
} else {
ERROR( "Unable to determine variable rank: " + to_string( var.data.size() ) );
}
if ( var.precision == IO::DataType::Double ) {
IO::HDF5::writeHDF5( gid, var.name, data );
} else if ( var.precision == IO::DataType::Float ) {
IO::HDF5::writeHDF5( gid, var.name, data.cloneTo<float>() );
} else if ( var.precision == IO::DataType::Int ) {
IO::HDF5::writeHDF5( gid, var.name, data.cloneTo<int>() );
} else {
ERROR( "Unsupported format" );
}
domain.addVariable(
meshname, var.name, data.size(), rankType, getXdmfType( var.type ), path + var.name );
}
IO::HDF5::closeGroup( gid );
xmf.addMesh( meshData.meshName, domain );
}
// Write a mesh (and variables) to a file
static IO::MeshDatabase write_domain_hdf5( hid_t fid, const std::string &filename,
const IO::MeshDataStruct &mesh, IO::FileFormat format, int rank, Xdmf &xmf )
{
// Create the MeshDatabase
auto database = getDatabase( filename, mesh, format, rank );
if ( database.meshClass == "PointList" ) {
writeHDF5PointList( fid, filename, mesh, database, xmf );
} else if ( database.meshClass == "TriMesh" ) {
writeHDF5TriMesh( fid, filename, mesh, database, xmf );
} else if ( database.meshClass == "TriList" ) {
writeHDF5TriList( fid, filename, mesh, database, xmf );
} else if ( database.meshClass == "DomainMesh" ) {
writeHDF5DomainMesh( fid, filename, mesh, database, xmf );
} else {
ERROR( "Unknown mesh class" );
}
return database;
}
// Write the mesh data to hdf5
std::vector<IO::MeshDatabase> writeMeshesHDF5( const std::vector<IO::MeshDataStruct> &meshData,
const std::string &path, IO::FileFormat format, int rank, Xdmf &xmf )
{
std::vector<IO::MeshDatabase> meshes_written;
char filename[100], fullpath[200];
sprintf( filename, "%05i.h5", rank );
sprintf( fullpath, "%s/%s", path.c_str(), filename );
auto fid = IO::HDF5::openHDF5( fullpath, "w", IO::HDF5::Compression::GZIP );
for ( size_t i = 0; i < meshData.size(); i++ ) {
meshes_written.push_back(
write_domain_hdf5( fid, filename, meshData[i], format, rank, xmf ) );
}
IO::HDF5::closeHDF5( fid );
return meshes_written;
}
#else
std::vector<IO::MeshDatabase> writeMeshesHDF5(
const std::vector<IO::MeshDataStruct> &, const std::string &, IO::FileFormat, int, Xdmf & )
{
return std::vector<IO::MeshDatabase>();
}
#endif