int
main( int argc, char* argv[] )
{
Initialize( argc, argv );
mpi::Comm comm = mpi::COMM_WORLD;
const Int commRank = mpi::Rank( comm );
const Int commSize = mpi::Size( comm );
try
{
const Int m = 3*commSize;
const Int n = 2*commSize;
Grid g( comm );
for( Int k=0; k<50; ++k )
{
if( commRank == 0 )
std::cout << "Iteration " << k << std::endl;
DistMatrix<double> A(g);
Zeros( A, m, n );
AxpyInterface<double> interface;
interface.Attach( LOCAL_TO_GLOBAL, A );
Matrix<double> X( commSize, 1 );
for( Int j=0; j<X.Width(); ++j )
for( Int i=0; i<commSize; ++i )
X.Set(i,j,commRank+1);
for( Int i=0; i<5; ++i )
{
interface.Axpy( 2, X, 2*commRank, commRank );
interface.Axpy( 2, X, 2*commRank, commRank+1 );
}
interface.Detach();
Print( A, "A" );
interface.Attach( GLOBAL_TO_LOCAL, A );
Matrix<double> Y;
if( commRank == 0 )
{
Zeros( Y, m, n );
interface.Axpy( 1.0, Y, 0, 0 );
}
interface.Detach();
if( commRank == 0 )
Print( Y, "Copy of global matrix on root process:" );
// TODO: Check to ensure that the result is correct
}
}
catch( std::exception& e ) { ReportException(e); }
Finalize();
return 0;
}
int
main( int argc, char* argv[] )
{
Initialize( argc, argv );
mpi::Comm comm = mpi::COMM_WORLD;
const int commRank = mpi::CommRank( comm );
const int commSize = mpi::CommSize( comm );
try
{
const int m = 3*commSize;
const int n = 2*commSize;
Grid g( comm );
for( int k=0; k<50; ++k )
{
if( commRank == 0 )
std::cout << "Iteration " << k << std::endl;
DistMatrix<double> A(g);
Zeros( m, n, A );
AxpyInterface<double> interface;
interface.Attach( LOCAL_TO_GLOBAL, A );
Matrix<double> X( commSize, 1 );
for( int j=0; j<X.Width(); ++j )
for( int i=0; i<commSize; ++i )
X.Set(i,j,commRank+1);
for( int i=0; i<5; ++i )
{
interface.Axpy( 2, X, 2*commRank, commRank );
interface.Axpy( 2, X, 2*commRank, commRank+1 );
}
interface.Detach();
A.Print("A");
interface.Attach( GLOBAL_TO_LOCAL, A );
Matrix<double> Y;
if( commRank == 0 )
{
Zeros( m, n, Y );
interface.Axpy( 1.0, Y, 0, 0 );
}
interface.Detach();
if( commRank == 0 )
Y.Print( "Copy of global matrix on root process:" );
// TODO: Check to ensure that the result is correct
}
}
catch( std::exception& e )
{
#ifndef RELEASE
DumpCallStack();
#endif
std::cerr << "Process " << commRank << " caught error message:\n"
<< e.what() << std::endl;
}
Finalize();
return 0;
}