MOAB: Mesh Oriented datABase  (version 5.3.0)
elem_eval_time.cpp File Reference
#include "moab/Core.hpp"
#include "moab/Range.hpp"
#include "moab/ProgOptions.hpp"
#include "moab/CartVect.hpp"
#include "moab/ElemEvaluator.hpp"
#include "moab/CN.hpp"
#include "ElemUtil.hpp"
#include <iostream>
#include <ctime>
#include <cstdlib>
#include <cassert>
#include <sstream>
#include <string>
#include <sys/resource.h>
+ Include dependency graph for elem_eval_time.cpp:

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Defines

#define CHK(r, s)

Functions

static void fail (ErrorCode error_code, const char *str, const char *file_name, int line_number)
double mytime ()
ErrorCode get_ents (Interface &mbi, std::string &filename, int &dim, Range &elems, EntityType &tp, int &nv)
void parse_options (ProgOptions &opts, int &dim, std::string &filename)
ErrorCode get_elem_map (EntityType tp, std::vector< CartVect > &vcoords, int nconn, Element::Map *&elemmap)
ErrorCode time_forward_eval (Interface *mbi, int method, Range &elems, std::vector< CartVect > &params, std::vector< CartVect > &coords, double &evtime)
ErrorCode time_reverse_eval (Interface *mbi, int method, Range &elems, std::vector< CartVect > &coords, std::vector< CartVect > &params, double &retime)
ErrorCode time_jacobian (Interface *mbi, int method, Range &elems, std::vector< CartVect > &params, double &jactime)
ErrorCode time_integrate (Interface *mbi, int method, Tag tag, Range &elems, double &inttime)
ErrorCode put_random_field (Interface &mbi, Tag &tag, Range &elems)
ErrorCode elem_evals (Interface *mbi, int method, Range &elems, Tag tag, std::vector< CartVect > &params, std::vector< CartVect > &coords, double &evtime, double &retime, double &jactime, double &inttime)
int main (int argc, char *argv[])
double mytime2 (double &tot_time, double &utime, double &stime, long &imem, long &rmem)

Variables

const int ELEMEVAL = 0
const int ELEMUTIL = 1

Define Documentation

#define CHK (   r,
 
)
Value:
do                                                \
    {                                                 \
        if( MB_SUCCESS != ( r ) )                     \
        {                                             \
            fail( ( r ), ( s ), __FILE__, __LINE__ ); \
            return ( r );                             \
        }                                             \
    } while( false )

Definition at line 27 of file elem_eval_time.cpp.

Referenced by elem_evals(), get_ents(), main(), put_random_field(), time_forward_eval(), time_integrate(), time_jacobian(), and time_reverse_eval().


Function Documentation

ErrorCode elem_evals ( Interface mbi,
int  method,
Range elems,
Tag  tag,
std::vector< CartVect > &  params,
std::vector< CartVect > &  coords,
double &  evtime,
double &  retime,
double &  jactime,
double &  inttime 
)

Definition at line 319 of file elem_eval_time.cpp.

References CHK, ErrorCode, time_forward_eval(), time_integrate(), time_jacobian(), and time_reverse_eval().

Referenced by main().

{
    evtime = 0, retime = 0, jactime = 0, inttime = 0;  // initializations to avoid compiler warning

    // time/test forward evaluation, putting results into vector
    ErrorCode rval = time_forward_eval( mbi, method, elems, params, coords, evtime );
    CHK( rval, "time_forward_eval" );

    // time/test reverse evaluation, putting results into vector
    rval = time_reverse_eval( mbi, method, elems, coords, params, retime );
    CHK( rval, "time_reverse_eval" );

    // time/test Jacobian evaluation
    rval = time_jacobian( mbi, method, elems, params, jactime );
    CHK( rval, "time_jacobian" );

    // time/test integration
    rval = time_integrate( mbi, method, tag, elems, inttime );
    CHK( rval, "time_integrate" );

    return rval;
}
static void fail ( ErrorCode  error_code,
const char *  str,
const char *  file_name,
int  line_number 
) [static]

Definition at line 39 of file elem_eval_time.cpp.

{
    std::cerr << str << ", line " << line_number << " of file " << file_name << ", error code " << error_code
              << std::endl;
}
ErrorCode get_elem_map ( EntityType  tp,
std::vector< CartVect > &  vcoords,
int  nconn,
Element::Map *&  elemmap 
)

Definition at line 82 of file elem_eval_time.cpp.

References MB_SUCCESS, MBHEX, MBQUAD, and MBTET.

Referenced by time_forward_eval(), time_integrate(), time_jacobian(), and time_reverse_eval().

{
    switch( tp )
    {
        case MBHEX:
            if( nconn == 8 )
            {
                elemmap = new Element::LinearHex( vcoords );
                break;
            }
            else if( nconn == 27 )
            {
                elemmap = new Element::QuadraticHex( vcoords );
                break;
            }
            else
                return MB_FAILURE;
        case MBTET:
            if( nconn == 4 )
            {
                elemmap = new Element::LinearTet( vcoords );
                break;
            }
            else
                return MB_FAILURE;
        case MBQUAD:
            if( nconn == 4 )
            {
                elemmap = new Element::LinearQuad( vcoords );
                break;
            }
            else
                return MB_FAILURE;
        default:
            return MB_FAILURE;
    }

    return MB_SUCCESS;
}
ErrorCode get_ents ( Interface mbi,
std::string &  filename,
int &  dim,
Range elems,
EntityType &  tp,
int &  nv 
)

Definition at line 47 of file elem_eval_time.cpp.

References moab::Range::begin(), CHK, moab::Range::empty(), ErrorCode, moab::Interface::get_connectivity(), moab::Interface::get_entities_by_dimension(), moab::Interface::load_file(), MB_SUCCESS, moab::Range::rbegin(), and moab::Interface::type_from_handle().

Referenced by main().

{
    ErrorCode rval = mbi.load_file( filename.c_str(), 0 );
    while( elems.empty() && dim >= 1 )
    {
        rval = mbi.get_entities_by_dimension( 0, dim, elems );
        CHK( rval, "get_entities_by_dimension" );
        if( elems.empty() ) dim--;
    }
    if( elems.empty() ) { CHK( MB_FAILURE, "No elements in file" ); }

    // check to see they're all the same type & #vertices
    tp             = mbi.type_from_handle( *elems.begin() );
    EntityType tp2 = mbi.type_from_handle( *elems.rbegin() );
    if( tp != tp2 ) CHK( MB_FAILURE, "Elements must have same type" );

    int nv2;
    const EntityHandle* c1;
    rval = mbi.get_connectivity( *elems.begin(), c1, nv );
    CHK( rval, "get_connectivity" );
    rval = mbi.get_connectivity( *elems.rbegin(), c1, nv2 );
    CHK( rval, "get_connectivity" );
    if( nv != nv2 ) { CHK( MB_FAILURE, "Elements must have same #vertices" ); }

    return MB_SUCCESS;
}
int main ( int  argc,
char *  argv[] 
)

Definition at line 344 of file elem_eval_time.cpp.

References CHK, dim, elem_evals(), ELEMEVAL, ELEMUTIL, moab::CN::EntityTypeName(), ErrorCode, filename, get_ents(), MB_SUCCESS, parse_options(), ProgOptions::parseCommandLine(), put_random_field(), and moab::Range::size().

{
    // parse options
    ProgOptions opts;
    std::string filename;
    int dim = 3;
    parse_options( opts, dim, filename );
    opts.parseCommandLine( argc, argv );
    if( filename.empty() )
        CHK( MB_FAILURE, "No file specified" );
    else if( dim < 1 || dim > 3 )
        CHK( MB_FAILURE, "Dimension must be > 0 and <= 3" );

    // read mesh file & gather element handles
    Core mbi;
    Range elems;
    int nv;
    EntityType tp;
    ErrorCode rval = get_ents( mbi, filename, dim, elems, tp, nv );
    if( MB_SUCCESS != rval ) return 1;

    // construct (random) parameter values for queries
    unsigned int ne = elems.size();
    std::vector< CartVect > params( ne ), coords( ne );
    srand( time( NULL ) );
    for( unsigned int i = 0; i < ne; i++ )
    {
        params[i][0] = -1 + 2 * ( (double)rand() ) / RAND_MAX;
        if( dim > 1 ) params[i][1] = -1 + 2 * ( (double)rand() ) / RAND_MAX;
        if( dim > 2 ) params[i][2] = -1 + 2 * ( (double)rand() ) / RAND_MAX;
    }

    // put random field on vertices
    Tag tag;
    rval = put_random_field( mbi, tag, elems );
    CHK( rval, "put_random_field" );
    double evtime[2], retime[2], jactime[2],
        inttime[2];  // initializations to avoid compiler warning

    rval = elem_evals( &mbi, ELEMEVAL, elems, tag, params, coords, evtime[0], retime[0], jactime[0], inttime[0] );
    CHK( rval, "new elem_evals" );

    rval = elem_evals( &mbi, ELEMUTIL, elems, tag, params, coords, evtime[1], retime[1], jactime[1], inttime[1] );
    CHK( rval, "old elem_evals" );

    std::cout << filename << ": " << elems.size() << " " << CN::EntityTypeName( tp ) << " elements, " << nv
              << " vertices per element." << std::endl
              << std::endl;
    std::cout << "New, old element evaluation code:" << std::endl;
    std::cout << "Evaluation type, time, time per element:" << std::endl;
    std::cout << "                             New                   Old            (New/Old)*100" << std::endl;
    std::cout << "Forward evaluation " << evtime[0] << ", " << evtime[0] / elems.size() << "    " << evtime[1] << ", "
              << evtime[1] / elems.size() << "    " << ( evtime[0] / ( evtime[1] ? evtime[1] : 1 ) ) * 100.0
              << std::endl;
    std::cout << "Reverse evaluation " << retime[0] << ", " << retime[0] / elems.size() << "    " << retime[1] << ", "
              << retime[1] / elems.size() << "    " << ( retime[0] / ( retime[1] ? retime[1] : 1 ) ) * 100.0
              << std::endl;
    std::cout << "Jacobian           " << jactime[0] << ", " << jactime[0] / elems.size() << "    " << jactime[1]
              << ", " << jactime[1] / elems.size() << "    " << ( jactime[0] / ( jactime[1] ? jactime[1] : 1 ) ) * 100.0
              << std::endl;
    std::cout << "Integration        " << inttime[0] << ", " << inttime[0] / elems.size() << "    " << inttime[1]
              << ", " << inttime[1] / elems.size() << "    " << ( inttime[0] / ( inttime[1] ? inttime[1] : 1 ) ) * 100.0
              << std::endl;
}
double mytime ( )

Definition at line 436 of file elem_eval_time.cpp.

References mytime2().

Referenced by time_forward_eval(), time_integrate(), time_jacobian(), and time_reverse_eval().

{
    double ttime, utime, stime;
    long imem, rmem;
    return mytime2( ttime, utime, stime, imem, rmem );
}
double mytime2 ( double &  tot_time,
double &  utime,
double &  stime,
long &  imem,
long &  rmem 
)

Definition at line 418 of file elem_eval_time.cpp.

Referenced by mytime().

{
    struct rusage r_usage;
    getrusage( RUSAGE_SELF, &r_usage );
    utime    = (double)r_usage.ru_utime.tv_sec + ( (double)r_usage.ru_utime.tv_usec / 1.e6 );
    stime    = (double)r_usage.ru_stime.tv_sec + ( (double)r_usage.ru_stime.tv_usec / 1.e6 );
    tot_time = utime + stime;
#ifndef LINUX
    imem     = r_usage.ru_idrss;
    rmem     = r_usage.ru_maxrss;
#else
    system( "ps o args,drs,rss | grep perf | grep -v grep" );  // RedHat 9.0 doesnt fill in actual
                                                               // memory data
    imem = rmem = 0;
#endif
    return tot_time;
}
void parse_options ( ProgOptions opts,
int &  dim,
std::string &  filename 
)

Definition at line 74 of file elem_eval_time.cpp.

References ProgOptions::addOpt(), dim, filename, and ProgOptions::int_flag.

{
    opts.addOpt< int >( std::string( "dim" ),
                        std::string( "Evaluate 1d/2d/3d elements (default: maximal dimension in mesh)" ), &dim,
                        ProgOptions::int_flag );
    opts.addOpt< std::string >( std::string( "filename,f" ), std::string( "Filename containing mesh" ), &filename );
}
ErrorCode put_random_field ( Interface mbi,
Tag tag,
Range elems 
)

Definition at line 305 of file elem_eval_time.cpp.

References CHK, ErrorCode, moab::Interface::get_adjacencies(), MB_TAG_CREAT, MB_TAG_DENSE, MB_TYPE_DOUBLE, moab::Range::size(), moab::Interface::tag_get_handle(), moab::Interface::tag_set_data(), and moab::Interface::UNION.

Referenced by main().

{
    Range verts;
    ErrorCode rval = mbi.get_adjacencies( elems, 0, false, verts, Interface::UNION );
    CHK( rval, "get_adjacencies" );
    rval = mbi.tag_get_handle( "mytag", 1, MB_TYPE_DOUBLE, tag, MB_TAG_CREAT | MB_TAG_DENSE );
    CHK( rval, "tag_get_handle" );
    std::vector< double > tag_vals( verts.size() );
    for( unsigned int i = 0; i < verts.size(); i++ )
        tag_vals[i] = ( (double)rand() ) / RAND_MAX;
    rval = mbi.tag_set_data( tag, verts, &tag_vals[0] );
    return rval;
}
ErrorCode time_forward_eval ( Interface mbi,
int  method,
Range elems,
std::vector< CartVect > &  params,
std::vector< CartVect > &  coords,
double &  evtime 
)

Definition at line 122 of file elem_eval_time.cpp.

References moab::Range::begin(), CHK, ELEMEVAL, ELEMUTIL, moab::Range::end(), ErrorCode, moab::ElemEvaluator::eval(), moab::Element::Map::evaluate(), moab::Interface::get_connectivity(), moab::Interface::get_coords(), get_elem_map(), moab::CN::MAX_NODES_PER_ELEMENT, MB_SUCCESS, mytime(), moab::ElemEvaluator::set_ent_handle(), moab::ElemEvaluator::set_eval_set(), moab::ElemEvaluator::set_tag_handle(), and moab::Interface::type_from_handle().

Referenced by elem_evals().

{
    evtime = mytime();
    ErrorCode rval;
    Range::iterator rit;
    unsigned int i;
    if( ELEMEVAL == method )
    {
        // construct ElemEvaluator
        EvalSet eset;
        ElemEvaluator eeval( mbi );
        eeval.set_eval_set( *elems.begin() );
        eeval.set_tag_handle( 0, 0 );  // indicates coordinates as the field to evaluate

        for( rit = elems.begin(), i = 0; rit != elems.end(); ++rit, i++ )
        {
            eeval.set_ent_handle( *rit );
            rval = eeval.eval( params[i].array(), coords[i].array(), 3 );
#ifndef NDEBUG
            if( MB_SUCCESS != rval ) return rval;
#endif
        }
    }
    else if( ELEMUTIL == method )
    {
        std::vector< CartVect > vcoords( CN::MAX_NODES_PER_ELEMENT );
        const EntityHandle* connect;
        int nconn;
        Element::Map* elemmap = NULL;
        for( rit = elems.begin(), i = 0; rit != elems.end(); ++rit, i++ )
        {
            rval = mbi->get_connectivity( *rit, connect, nconn );
            CHK( rval, "get_connectivity" );
            rval = mbi->get_coords( connect, nconn, vcoords[0].array() );
            CHK( rval, "get_coords" );
            rval = get_elem_map( mbi->type_from_handle( *rit ), vcoords, nconn, elemmap );
            CHK( rval, "get_elem_map" );
            coords[i] = elemmap->evaluate( params[i] );
        }
    }

    evtime = mytime() - evtime;
    return MB_SUCCESS;
}
ErrorCode time_integrate ( Interface mbi,
int  method,
Tag  tag,
Range elems,
double &  inttime 
)

Definition at line 256 of file elem_eval_time.cpp.

References moab::Range::begin(), CHK, ELEMEVAL, ELEMUTIL, moab::Range::end(), ErrorCode, moab::Interface::get_connectivity(), moab::Interface::get_coords(), get_elem_map(), moab::ElemEvaluator::integrate(), moab::Element::Map::integrate_scalar_field(), moab::CN::MAX_NODES_PER_ELEMENT, MB_SUCCESS, mytime(), moab::ElemEvaluator::set_ent_handle(), moab::ElemEvaluator::set_eval_set(), moab::ElemEvaluator::set_tag_handle(), moab::Interface::tag_get_data(), and moab::Interface::type_from_handle().

Referenced by elem_evals().

{
    inttime = mytime();
    ErrorCode rval;
    double integral = 0.0;
    if( ELEMEVAL == method )
    {
        EvalSet eset;
        ElemEvaluator eeval( mbi );
        eeval.set_eval_set( *elems.begin() );
        eeval.set_tag_handle( 0, 0 );  // indicates coordinates as the field to evaluate
        rval = eeval.set_tag_handle( tag, 0 );
        CHK( rval, "set_tag_handle" );
        for( Range::iterator rit = elems.begin(); rit != elems.end(); ++rit )
        {
            eeval.set_ent_handle( *rit );
            rval = eeval.integrate( &integral );
#ifndef NDEBUG
            if( MB_SUCCESS != rval ) return rval;
#endif
        }
    }
    else if( ELEMUTIL == method )
    {
        std::vector< CartVect > vcoords( CN::MAX_NODES_PER_ELEMENT );
        std::vector< double > tagval( CN::MAX_NODES_PER_ELEMENT );
        const EntityHandle* connect;
        int nconn;
        Element::Map* elemmap = NULL;
        Range::iterator rit;
        unsigned int i;
        for( rit = elems.begin(), i = 0; rit != elems.end(); ++rit, i++ )
        {
            rval = mbi->get_connectivity( *rit, connect, nconn );
            CHK( rval, "get_connectivity" );
            rval = mbi->get_coords( connect, nconn, vcoords[0].array() );
            CHK( rval, "get_coords" );
            rval = get_elem_map( mbi->type_from_handle( *rit ), vcoords, nconn, elemmap );
            CHK( rval, "get_elem_map" );
            rval = mbi->tag_get_data( tag, connect, nconn, &tagval[0] );
            CHK( rval, "tag_get_data" );
            integral = elemmap->integrate_scalar_field( &tagval[0] );
        }
    }
    inttime = mytime() - inttime;
    std::cout << "integral = " << integral << std::endl;
    return MB_SUCCESS;
}
ErrorCode time_jacobian ( Interface mbi,
int  method,
Range elems,
std::vector< CartVect > &  params,
double &  jactime 
)

Definition at line 213 of file elem_eval_time.cpp.

References moab::Matrix3::array(), moab::Range::begin(), CHK, ELEMEVAL, ELEMUTIL, moab::Range::end(), ErrorCode, moab::Interface::get_connectivity(), moab::Interface::get_coords(), get_elem_map(), moab::Element::Map::jacobian(), moab::ElemEvaluator::jacobian(), moab::CN::MAX_NODES_PER_ELEMENT, MB_SUCCESS, mytime(), moab::ElemEvaluator::set_ent_handle(), moab::ElemEvaluator::set_eval_set(), moab::ElemEvaluator::set_tag_handle(), and moab::Interface::type_from_handle().

Referenced by elem_evals().

{
    jactime = mytime();
    ErrorCode rval;
    Range::iterator rit;
    unsigned int i;
    Matrix3 jac;
    if( ELEMEVAL == method )
    {
        EvalSet eset;
        ElemEvaluator eeval( mbi );
        eeval.set_eval_set( *elems.begin() );
        eeval.set_tag_handle( 0, 0 );  // indicates coordinates as the field to evaluate
        for( rit = elems.begin(), i = 0; rit != elems.end(); ++rit, i++ )
        {
            eeval.set_ent_handle( *rit );
            rval = eeval.jacobian( params[i].array(), jac.array() );
#ifndef NDEBUG
            if( MB_SUCCESS != rval ) return rval;
#endif
        }
    }
    else if( ELEMUTIL == method )
    {
        std::vector< CartVect > vcoords( CN::MAX_NODES_PER_ELEMENT );
        const EntityHandle* connect;
        int nconn;
        Element::Map* elemmap = NULL;
        for( rit = elems.begin(), i = 0; rit != elems.end(); ++rit, i++ )
        {
            rval = mbi->get_connectivity( *rit, connect, nconn );
            CHK( rval, "get_connectivity" );
            rval = mbi->get_coords( connect, nconn, vcoords[0].array() );
            CHK( rval, "get_coords" );
            rval = get_elem_map( mbi->type_from_handle( *rit ), vcoords, nconn, elemmap );
            CHK( rval, "get_elem_map" );
            jac = elemmap->jacobian( params[i] );
        }
    }
    jactime = mytime() - jactime;
    return MB_SUCCESS;
}
ErrorCode time_reverse_eval ( Interface mbi,
int  method,
Range elems,
std::vector< CartVect > &  coords,
std::vector< CartVect > &  params,
double &  retime 
)

Definition at line 168 of file elem_eval_time.cpp.

References moab::Range::begin(), CHK, ELEMEVAL, ELEMUTIL, moab::Range::end(), ErrorCode, moab::Interface::get_connectivity(), moab::Interface::get_coords(), get_elem_map(), moab::Element::Map::ievaluate(), moab::CN::MAX_NODES_PER_ELEMENT, MB_SUCCESS, mytime(), moab::ElemEvaluator::reverse_eval(), moab::ElemEvaluator::set_ent_handle(), moab::ElemEvaluator::set_eval_set(), moab::ElemEvaluator::set_tag_handle(), and moab::Interface::type_from_handle().

Referenced by elem_evals().

{
    retime = mytime();
    ErrorCode rval;
    Range::iterator rit;
    unsigned int i;
    if( ELEMEVAL == method )
    {
        EvalSet eset;
        ElemEvaluator eeval( mbi );
        eeval.set_eval_set( *elems.begin() );
        eeval.set_tag_handle( 0, 0 );  // indicates coordinates as the field to evaluate
        int ins;
        for( rit = elems.begin(), i = 0; rit != elems.end(); ++rit, i++ )
        {
            eeval.set_ent_handle( *rit );
            rval = eeval.reverse_eval( coords[i].array(), 1.0e-10, 1.0e-6, params[i].array(), &ins );
            assert( ins );
#ifndef NDEBUG
            if( MB_SUCCESS != rval ) return rval;
#endif
        }
    }
    else if( ELEMUTIL == method )
    {
        std::vector< CartVect > vcoords( CN::MAX_NODES_PER_ELEMENT );
        const EntityHandle* connect;
        int nconn;
        Element::Map* elemmap = NULL;
        for( rit = elems.begin(), i = 0; rit != elems.end(); ++rit, i++ )
        {
            rval = mbi->get_connectivity( *rit, connect, nconn );
            CHK( rval, "get_connectivity" );
            rval = mbi->get_coords( connect, nconn, vcoords[0].array() );
            CHK( rval, "get_coords" );
            rval = get_elem_map( mbi->type_from_handle( *rit ), vcoords, nconn, elemmap );
            CHK( rval, "get_elem_map" );
            coords[i] = elemmap->ievaluate( coords[i], 1.0e-6 );
        }
    }
    retime = mytime() - retime;
    return MB_SUCCESS;
}

Variable Documentation

const int ELEMEVAL = 0
const int ELEMUTIL = 1
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