netgen/nglib/parallelfunc.cpp

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2012-07-05 17:11:19 +06:00
#ifdef PARALLEL
#include "dlfcn.h"
// #include <mystdlib.h>
#include <meshing.hpp>
// #include <visual.hpp>
#include <meshing.hpp>
void (*NGS_ParallelRun) (const string & message) = NULL;
namespace netgen
{
#include "../interface/writeuser.hpp"
extern string ngdir;
}
void Parallel_Exit();
namespace netgen {
extern AutoPtr<Mesh> mesh;
// extern VisualSceneMesh vsmesh;
extern DLL_HEADER MeshingParameters mparam;
}
using namespace netgen;
using netgen::RegisterUserFormats;
void ParallelRun()
{
string message;
MPI_Status status;
MPI_Comm_size(MPI_COMM_WORLD, &ntasks);
MPI_Comm_rank(MPI_COMM_WORLD, &id);
while ( true )
{
message = MyMPI_RecvCmd();
if ( message.compare(0, 3, "ngs") == 0 )
{
if (NGS_ParallelRun == NULL)
{
static int timer = NgProfiler::CreateTimer ("load shared library ngsolve");
NgProfiler::RegionTimer reg (timer);
void * handle = dlopen ("libngsolve.so", RTLD_NOW | RTLD_GLOBAL);
if (!handle)
{
cerr << "cannot load shared library libngsolve.so" << endl;
exit(1);
}
NGS_ParallelRun = (void (*) (const string & message)) dlsym (handle, "NGS_ParallelRun");
if (!NGS_ParallelRun)
{
cerr << "cannot bind function NGS_ParallelRun" << endl;
exit(1);
}
}
(*NGS_ParallelRun) (message);
}
else if ( message == "mesh" )
{
VT_USER_START ("Mesh::ReceiveParallelMesh");
mesh.Reset( new netgen::Mesh);
mesh->SendRecvMesh();
VT_USER_END ("Mesh::ReceiveParallelMesh");
}
else if ( message == "visualize" )
{
cout << "parallel message visualize depreciated" << endl;
}
else if ( message == "bcastparthread" )
{
MyMPI_Bcast (mparam.parthread);
}
else if ( message == "end" )
{
break;
}
else
{
PrintMessage ( 1, "received unidentified message '" + message + "'\n");
break;
}
}
}
#endif