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LATfield2_parallel2d.hpp
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#ifndef LATFIELD2_PARALLEL2D_HPP
#define LATFIELD2_PARALLEL2D_HPP
#include "LATfield2_parallel2d_decl.hpp"
/////////// add verif for the 2*2 process and dim>2.
/*! \file LATfield2_parallel2d.hpp
\brief LATfield2_parallel2d.hpp contains the class Parallel2d implementation.
\author David Daverio, edited by Wessel Valkenburg
*/
Parallel2d::Parallel2d() : neverFinalizeMPI(false)
{
int argc=1;
char** argv = new char*[argc];
for(int i=0; i<argc; i++) { argv[i]=new char[20]; }
#ifndef EXTERNAL_IO
lat_world_comm_ = MPI_COMM_WORLD;
world_comm_ = MPI_COMM_WORLD;
MPI_Init( &argc, &argv );
MPI_Comm_rank( lat_world_comm_, &lat_world_rank_ );
MPI_Comm_size( lat_world_comm_, &lat_world_size_ );
MPI_Comm_rank( world_comm_, &world_rank_ );
MPI_Comm_size( world_comm_, &world_size_ );
#else
world_comm_ = MPI_COMM_WORLD;
MPI_Init( &argc, &argv );
MPI_Comm_rank( world_comm_, &world_rank_ );
MPI_Comm_size( world_comm_, &world_size_ );
#endif
}
void Parallel2d::initialize(int proc_size0, int proc_size1)
{
this->initialize(proc_size0, proc_size1,0,0);
}
void Parallel2d::initialize(int proc_size0, int proc_size1,int IO_total_size, int IO_node_size)
{
grid_size_[0]=proc_size0;
grid_size_[1]=proc_size1;
dim0_comm_ = (MPI_Comm *)malloc(grid_size_[1]*sizeof(MPI_Comm));
dim1_comm_ = (MPI_Comm *)malloc(grid_size_[0]*sizeof(MPI_Comm));
dim0_group_ = (MPI_Group *)malloc(grid_size_[1]*sizeof(MPI_Group));
dim1_group_ = (MPI_Group *)malloc(grid_size_[0]*sizeof(MPI_Group));
int rang[3],i,j,comm_rank;
#ifdef EXTERNAL_IO
if(world_rank_==0)
{
if(proc_size0*proc_size1+IO_total_size!=world_size_)
{
cerr<<"Latfield::Parallel2d::initialization - wrong number of process"<<endl;
cerr<<"Latfield::Parallel2d::initialization - Number of total process must be equal to proc_size0*proc_size1+IO_total_size"<<endl;
cerr<<"Latfield::Parallel2d::initialization - Within the call : Parallel2d(int proc_size0, int proc_size1, int IO_total_size)"<<endl;
this->abortForce();
}
}
MPI_Comm_group(world_comm_,&world_group_);
rang[0]=0;
rang[1]=proc_size0*proc_size1-1;
rang[2]=1;
MPI_Group_range_incl(world_group_,1,&rang,&lat_world_group_);
MPI_Comm_create(world_comm_,lat_world_group_ , &lat_world_comm_);
rang[0]=proc_size0*proc_size1;
rang[1]=proc_size0*proc_size1 + IO_total_size - 1;
rang[2]=1;
MPI_Group_range_incl(world_group_,1,&rang,&IO_group_);
MPI_Comm_create(world_comm_,IO_group_ , &IO_comm_);
MPI_Group_rank(lat_world_group_, &comm_rank);
if(comm_rank!=MPI_UNDEFINED)
{
lat_world_rank_=comm_rank;
MPI_Comm_size( lat_world_comm_, &lat_world_size_ );
rang[2]=1;
for(j=0;j<grid_size_[1];j++)
{
rang[0] = j * grid_size_[0];
rang[1] = grid_size_[0] - 1 + j*grid_size_[0];
MPI_Group_range_incl(lat_world_group_,1,&rang,&dim0_group_[j]);
MPI_Comm_create(lat_world_comm_, dim0_group_[j], &dim0_comm_[j]);
}
rang[2]=grid_size_[0];
for(i=0;i<grid_size_[0];i++)
{
rang[0]=i;
rang[1]=i+(grid_size_[1]-1)*grid_size_[0];
MPI_Group_range_incl(lat_world_group_,1,&rang,&dim1_group_[i]);
MPI_Comm_create(lat_world_comm_, dim1_group_[i], &dim1_comm_[i]);
}
for(i=0;i<grid_size_[0];i++)
{
MPI_Group_rank(dim1_group_[i], &comm_rank);
if(comm_rank!=MPI_UNDEFINED)grid_rank_[1]=comm_rank;
}
for(j=0;j<grid_size_[1];j++)
{
MPI_Group_rank(dim0_group_[j], &comm_rank);
if(comm_rank!=MPI_UNDEFINED)grid_rank_[0]=comm_rank;
}
root_=0;
isIO_=false;
}
else
{
lat_world_rank_=-1;
root_=0;
grid_rank_[1]=-1;
grid_rank_[0]=-1;
isIO_=true;
}
if(grid_rank_[0]==grid_size_[0]-1)last_proc_[0]=true;
else last_proc_[0]=false;
if(grid_rank_[1]==grid_size_[1]-1)last_proc_[1]=true;
else last_proc_[1]=false;
ioserver.initialize(proc_size0,proc_size1,IO_total_size,IO_node_size);
#else
if(lat_world_rank_==0)
{
if(proc_size0*proc_size1!=lat_world_size_)
{
cerr<<"Latfield::Parallel2d::initialization - wrong number of process"<<endl;
cerr<<"Latfield::Parallel2d::initialization - Number of total process must be equal to proc_size0*proc_size1"<<endl;
cerr<<"Latfield::Parallel2d::initialization - Within the call : Parallel2d(int proc_size0, int proc_size1)"<<endl;
this->abortForce();
}
}
MPI_Comm_group(lat_world_comm_,&lat_world_group_);
rang[2]=1;
for(j=0;j<grid_size_[1];j++)
{
rang[0] = j * grid_size_[0];
rang[1] = grid_size_[0] - 1 + j*grid_size_[0];
MPI_Group_range_incl(lat_world_group_,1,&rang,&dim0_group_[j]);
MPI_Comm_create(lat_world_comm_, dim0_group_[j], &dim0_comm_[j]);
}
rang[2]=grid_size_[0];
for(i=0;i<grid_size_[0];i++)
{
rang[0]=i;
rang[1]=i+(grid_size_[1]-1)*grid_size_[0];
MPI_Group_range_incl(lat_world_group_,1,&rang,&dim1_group_[i]);
MPI_Comm_create(lat_world_comm_, dim1_group_[i], &dim1_comm_[i]);
}
for(i=0;i<grid_size_[0];i++)
{
MPI_Group_rank(dim1_group_[i], &comm_rank);
if(comm_rank!=MPI_UNDEFINED)grid_rank_[1]=comm_rank;
}
for(j=0;j<grid_size_[1];j++)
{
MPI_Group_rank(dim0_group_[j], &comm_rank);
if(comm_rank!=MPI_UNDEFINED)grid_rank_[0]=comm_rank;
}
root_=0;
if(grid_rank_[0]==grid_size_[0]-1)last_proc_[0]=true;
else last_proc_[0]=false;
if(grid_rank_[1]==grid_size_[1]-1)last_proc_[1]=true;
else last_proc_[1]=false;
#endif
if(root_ == lat_world_rank_)isRoot_=true;
else isRoot_=false;
}
Parallel2d::~Parallel2d()
{
int finalized;
MPI_Finalized(&finalized);
if((!finalized) && (!neverFinalizeMPI)) { MPI_Finalize(); }
}
//ABORT AND BARRIER===============================
void Parallel2d::abortForce()
{
MPI_Abort( world_comm_, EXIT_FAILURE);
}
void Parallel2d::abortRequest()
{
char failure;
if(isRoot())
{
failure=char(1);
broadcast(failure, root_);
exit(EXIT_FAILURE);
}
else
{
cout<<"Parallel::abortRequest() called from non-Root process."<<endl;
cout<<"Parallel::abortRequest() calling abortForce()..."<<endl;
abortForce();
}
}
void Parallel2d::barrier()
{
MPI_Barrier( lat_world_comm_ );
}
template<class Type> void Parallel2d::sum(Type& number)
{
sum(&number,1);
}
template<class Type> void Parallel2d::sum(Type* array, int len)
{
//Gather numbers at root
Type* gather;
if( rank() == root() ) gather = new Type[len*size()];
MPI_Gather( array, len*sizeof(Type), MPI_BYTE,
gather, len*sizeof(Type), MPI_BYTE, this->root(), lat_world_comm_);
//Sum on root
if( isRoot() )
{
int i, j;
for(i=0; i<size(); i++)
{
if( i!=root() ) for(j=0; j<len; j++)
{
array[j] = array[j] + gather[len*i+j];
}
}
}
//Broadcast result
MPI_Bcast( array, len*sizeof(Type), MPI_BYTE, this->root(), lat_world_comm_);
// Tidy up (bug found by MDP 12/4/06)
if(rank() == root() ) delete[] gather;
}
//specializations: using MPI_ALLREDUCE...
template<> void Parallel2d::sum<double>(double* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_DOUBLE,MPI_SUM,lat_world_comm_);
}
template<> void Parallel2d::sum<float>(float* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_FLOAT,MPI_SUM,lat_world_comm_);
}
template<> void Parallel2d::sum<int>(int* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_INT,MPI_SUM,lat_world_comm_);
}
template<> void Parallel2d::sum<long>(long* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_LONG,MPI_SUM,lat_world_comm_);
}
template<class Type> void Parallel2d::sum_dim0(Type& number)
{
sum_dim0( &number,1 );
}
template<class Type> void Parallel2d::sum_dim0(Type* array, int len)
{
int i,j,comm_rank;
Type* gather;
if( grid_rank()[0] == 0 ) gather = new Type[len*grid_size_[0]];
MPI_Gather( array, len*sizeof(Type), MPI_BYTE,gather, len*sizeof(Type), MPI_BYTE, 0,dim0_comm_[grid_rank_[1]]);
if( grid_rank()[0] == 0)
{
for(i=0; i<grid_size()[0]; i++)
{
if( i!=0 ) for(j=0; j<len; j++)
{
array[j] = array[j] + gather[len*i+j];
}
}
}
MPI_Bcast( array, len*sizeof(Type), MPI_BYTE, 0, dim0_comm_[grid_rank_[1]]);
if( grid_rank()[0] == 0 ) delete[] gather;
}
//specializations: using MPI_ALLREDUCE...
template<> void Parallel2d::sum_dim0<double>(double* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_DOUBLE,MPI_SUM,dim0_comm_[grid_rank_[1]]);
}
template<> void Parallel2d::sum_dim0<float>(float* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_FLOAT,MPI_SUM,dim0_comm_[grid_rank_[1]]);
}
template<> void Parallel2d::sum_dim0<int>(int* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_INT,MPI_SUM,dim0_comm_[grid_rank_[1]]);
}
template<> void Parallel2d::sum_dim0<long>(long* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_LONG,MPI_SUM,dim0_comm_[grid_rank_[1]]);
}
template<class Type> void Parallel2d::sum_dim1(Type& number)
{
sum_dim1( &number,1 );
}
template<class Type> void Parallel2d::sum_dim1(Type* array, int len)
{
int i,j,comm_rank;
Type* gather;
if( grid_rank_[1] == 0 ) gather = new Type[len*grid_size_[1]];
MPI_Gather( array, len*sizeof(Type), MPI_BYTE,gather, len*sizeof(Type), MPI_BYTE, 0,dim1_comm_[grid_rank_[0]]);
if( grid_rank()[1] == 0)
{
for(i=0; i<grid_size()[1]; i++)
{
if( i!=0 ) for(j=0; j<len; j++)
{
array[j] = array[j] + gather[len*i+j];
}
}
}
MPI_Bcast( array, len*sizeof(Type), MPI_BYTE, 0, dim1_comm_[grid_rank_[0]]);
if( grid_rank()[1] == 0 ) delete[] gather;
}
//specializations: using MPI_ALLREDUCE...
template<> void Parallel2d::sum_dim1<double>(double* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_DOUBLE,MPI_SUM,dim1_comm_[grid_rank_[0]]);
}
template<> void Parallel2d::sum_dim1<float>(float* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_FLOAT,MPI_SUM,dim1_comm_[grid_rank_[0]]);
}
template<> void Parallel2d::sum_dim1<int>(int* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_INT,MPI_SUM,dim1_comm_[grid_rank_[0]]);
}
template<> void Parallel2d::sum_dim1<long>(long* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_LONG,MPI_SUM,dim1_comm_[grid_rank_[0]]);
}
template<class Type>
void Parallel2d::sum_to(Type& number, int dest)
{
this->sum_to(&number,1,dest);
}
template<class Type>
void Parallel2d::sum_to(Type* array, int len, int dest)
{
Type* gather;
if( rank() == dest ) gather = new Type[len*size()];
MPI_Gather( array, len*sizeof(Type), MPI_BYTE,
gather, len*sizeof(Type), MPI_BYTE, dest, lat_world_comm_);
if( rank() == dest )
{
int i, j;
for(i=0; i<size(); i++)
{
if( i!=dest ) for(j=0; j<len; j++)
{
array[j] = array[j] + gather[len*i+j];
}
}
}
if(rank() == dest ) delete[] gather;
}
//specializations using MPI_REDUCE:
template<>
void Parallel2d::sum_to<double>(double* array, int len, int dest)
{
if(rank() == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_DOUBLE,MPI_SUM,dest,lat_world_comm_);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_DOUBLE,MPI_SUM,dest,lat_world_comm_);
}
template<>
void Parallel2d::sum_to<float>(float* array, int len, int dest)
{
if(rank() == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_FLOAT,MPI_SUM,dest,lat_world_comm_);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_FLOAT,MPI_SUM,dest,lat_world_comm_);
}
template<>
void Parallel2d::sum_to<int>(int* array, int len, int dest)
{
if(rank() == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_INT,MPI_SUM,dest,lat_world_comm_);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_INT,MPI_SUM,dest,lat_world_comm_);
}
template<>
void Parallel2d::sum_to<long>(long* array, int len, int dest)
{
if(rank() == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_LONG,MPI_SUM,dest,lat_world_comm_);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_LONG,MPI_SUM,dest,lat_world_comm_);
}
template<class Type>
void Parallel2d::sum_dim0_to(Type& number, int dest)
{
this->sum_dim0_to(&number,1,dest);
}
template<class Type>
void Parallel2d::sum_dim0_to(Type* array, int len, int dest)
{
int i,j,comm_rank;
Type* gather;
if( grid_rank_[0] == dest ) gather = new Type[len*grid_size_[0]];
MPI_Gather(array, len*sizeof(Type), MPI_BYTE,gather,
len*sizeof(Type), MPI_BYTE, dest,dim0_comm_[grid_rank_[1]]);
if( grid_rank_[0] == dest)
{
for(i=0; i<grid_size_[0]; i++)
{
if( i!=dest ) for(j=0; j<len; j++)
{
array[j] = array[j] + gather[len*i+j];
}
}
delete[] gather;
}
}
//specializations using MPI_REDUCE:
template<>
void Parallel2d::sum_dim0_to<double>(double* array, int len, int dest)
{
if(grid_rank_[0] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_DOUBLE,MPI_SUM,dest,dim0_comm_[grid_rank_[1]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_DOUBLE,MPI_SUM,dest,dim0_comm_[grid_rank_[1]]);
}
template<>
void Parallel2d::sum_dim0_to<float>(float* array, int len, int dest)
{
if(grid_rank_[0] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_FLOAT,MPI_SUM,dest,dim0_comm_[grid_rank_[1]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_FLOAT,MPI_SUM,dest,dim0_comm_[grid_rank_[1]]);
}
template<>
void Parallel2d::sum_dim0_to<int>(int* array, int len, int dest)
{
if(grid_rank_[0] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_INT,MPI_SUM,dest,dim0_comm_[grid_rank_[1]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_INT,MPI_SUM,dest,dim0_comm_[grid_rank_[1]]);
}
template<>
void Parallel2d::sum_dim0_to<long>(long* array, int len, int dest)
{
if(grid_rank_[0] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_LONG,MPI_SUM,dest,dim0_comm_[grid_rank_[1]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_LONG,MPI_SUM,dest,dim0_comm_[grid_rank_[1]]);
}
template<class Type>
void Parallel2d::sum_dim1_to(Type& number, int dest)
{
this->sum_dim1_to(&number,1,dest);
}
template<class Type>
void Parallel2d::sum_dim1_to(Type* array, int len, int dest)
{
int i,j,comm_rank;
Type* gather;
if( grid_rank_[1] == dest ) gather = new Type[len*grid_size_[1]];
MPI_Gather( array, len*sizeof(Type), MPI_BYTE,gather, len*sizeof(Type), MPI_BYTE, dest,dim1_comm_[grid_rank_[0]]);
if( grid_rank_[1] == dest)
{
for(i=0; i<grid_size_[1]; i++)
{
if( i!=dest ) for(j=0; j<len; j++)
{
array[j] = array[j] + gather[len*i+j];
}
}
delete[] gather;
}
}
//specializations using MPI_REDUCE:
template<>
void Parallel2d::sum_dim1_to<double>(double* array, int len, int dest)
{
if(grid_rank_[1] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_DOUBLE,MPI_SUM,dest,dim1_comm_[grid_rank_[0]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_DOUBLE,MPI_SUM,dest,dim1_comm_[grid_rank_[0]]);
}
template<>
void Parallel2d::sum_dim1_to<float>(float* array, int len, int dest)
{
if(grid_rank_[1] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_FLOAT,MPI_SUM,dest,dim1_comm_[grid_rank_[0]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_FLOAT,MPI_SUM,dest,dim1_comm_[grid_rank_[0]]);
}
template<>
void Parallel2d::sum_dim1_to<int>(int* array, int len, int dest)
{
if(grid_rank_[1] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_INT,MPI_SUM,dest,dim1_comm_[grid_rank_[0]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_INT,MPI_SUM,dest,dim1_comm_[grid_rank_[0]]);
}
template<>
void Parallel2d::sum_dim1_to<long>(long* array, int len, int dest)
{
if(grid_rank_[1] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_LONG,MPI_SUM,dest,dim1_comm_[grid_rank_[0]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_LONG,MPI_SUM,dest,dim1_comm_[grid_rank_[0]]);
}
template<class Type> void Parallel2d::max(Type& number)
{
max( &number,1 );
}
template<class Type> void Parallel2d::max(Type* array, int len)
{
//Gather numbers at root
Type* gather;
if( rank() == root() ) gather = new Type[len*size()];
MPI_Gather( array, len*sizeof(Type), MPI_BYTE,
gather, len*sizeof(Type), MPI_BYTE, this->root(), lat_world_comm_);
//Find max on root
if( isRoot() )
{
int i, j;
for(i=0; i<size(); i++)
{
if( i!=root() ) for(j=0; j<len; j++)
{
if( gather[len*i+j] > array[j] ) array[j] = gather[len*i+j];
}
}
}
//Broadcast result
MPI_Bcast( array, len*sizeof(Type), MPI_BYTE, this->root(), lat_world_comm_);
// Tidy up (bug found by MDP 12/4/06)
if( rank() == root() ) delete[] gather;
}
template<> void Parallel2d::max<double>(double* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_DOUBLE,MPI_MAX,lat_world_comm_);
}
template<> void Parallel2d::max<float>(float* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_FLOAT,MPI_MAX,lat_world_comm_);
}
template<> void Parallel2d::max<int>(int* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_INT,MPI_MAX,lat_world_comm_);
}
template<> void Parallel2d::max<long>(long* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_LONG,MPI_MAX,lat_world_comm_);
}
template<class Type> void Parallel2d::max_dim0(Type& number)
{
max_dim0( &number,1 );
}
template<class Type> void Parallel2d::max_dim0(Type* array, int len)
{
//Gather numbers at root
Type* gather;
if( grid_rank_[0] == 0 ) gather = new Type[len*grid_size_[0]];
MPI_Gather( array, len*sizeof(Type), MPI_BYTE,
gather, len*sizeof(Type), MPI_BYTE, 0,dim0_comm_[grid_rank_[1]]);
//Find max on root
if( grid_rank_[0] == 0 )
{
int i, j;
for(i=0; i<grid_size_[0]; i++)
{
if( i!=0 ) for(j=0; j<len; j++)
{
if( gather[len*i+j] > array[j] ) array[j] = gather[len*i+j];
}
}
}
//Broadcast result
MPI_Bcast( array, len*sizeof(Type), MPI_BYTE, 0,dim0_comm_[grid_rank_[1]]);
// Tidy up (bug found by MDP 12/4/06)
if( grid_rank_[0] == 0 ) delete[] gather;
}
//specializations: using MPI_ALLREDUCE...
template<> void Parallel2d::max_dim0<double>(double* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_DOUBLE,MPI_MAX,dim0_comm_[grid_rank_[1]]);
}
template<> void Parallel2d::max_dim0<float>(float* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_FLOAT,MPI_MAX,dim0_comm_[grid_rank_[1]]);
}
template<> void Parallel2d::max_dim0<int>(int* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_INT,MPI_MAX,dim0_comm_[grid_rank_[1]]);
}
template<> void Parallel2d::max_dim0<long>(long* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_LONG,MPI_MAX,dim0_comm_[grid_rank_[1]]);
}
template<class Type> void Parallel2d::max_dim1(Type& number)
{
max_dim1( &number,1 );
}
template<class Type> void Parallel2d::max_dim1(Type* array, int len)
{
//Gather numbers at root
Type* gather;
if( grid_rank_[1] == 0 ) gather = new Type[len*grid_size_[1]];
MPI_Gather( array, len*sizeof(Type), MPI_BYTE,
gather, len*sizeof(Type), MPI_BYTE, 0,dim1_comm_[grid_rank_[0]]);
//Find max on root
if( grid_rank_[1] == 0 )
{
int i, j;
for(i=0; i<grid_size_[1]; i++)
{
if( i!=0 ) for(j=0; j<len; j++)
{
if( gather[len*i+j] > array[j] ) array[j] = gather[len*i+j];
}
}
}
//Broadcast result
MPI_Bcast( array, len*sizeof(Type), MPI_BYTE, 0,dim1_comm_[grid_rank_[0]]);
// Tidy up (bug found by MDP 12/4/06)
if( grid_rank_[1] == 0 ) delete[] gather;
}
//specializations: using MPI_ALLREDUCE...
template<> void Parallel2d::max_dim1<double>(double* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_DOUBLE,MPI_MAX,dim1_comm_[grid_rank_[0]]);
}
template<> void Parallel2d::max_dim1<float>(float* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_FLOAT,MPI_MAX,dim1_comm_[grid_rank_[0]]);
}
template<> void Parallel2d::max_dim1<int>(int* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_INT,MPI_MAX,dim1_comm_[grid_rank_[0]]);
}
template<> void Parallel2d::max_dim1<long>(long* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_LONG,MPI_MAX,dim1_comm_[grid_rank_[0]]);
}
template<class Type>
void Parallel2d::max_to(Type& number, int dest)
{
max_to(&number,1,dest);
}
template<class Type>
void Parallel2d::max_to(Type* array, int len, int dest)
{
Type* gather;
if( rank() == dest ) gather = new Type[len*size()];
MPI_Gather( array, len*sizeof(Type), MPI_BYTE,
gather, len*sizeof(Type), MPI_BYTE, dest, lat_world_comm_);
if(rank() == dest )
{
int i, j;
for(i=0; i<size(); i++)
{
if( i!=dest) for(j=0; j<len; j++)
{
if( gather[len*i+j] > array[j] ) array[j] = gather[len*i+j];
}
}
delete[] gather;
}
}
//specializations using MPI_REDUCE:
template<>
void Parallel2d::max_to<double>(double* array, int len, int dest)
{
if(rank() == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_DOUBLE,MPI_MAX,dest,lat_world_comm_);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_DOUBLE,MPI_MAX,dest,lat_world_comm_);
}
template<>
void Parallel2d::max_to<float>(float* array, int len, int dest)
{
if(rank() == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_FLOAT,MPI_MAX,dest,lat_world_comm_);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_FLOAT,MPI_MAX,dest,lat_world_comm_);
}
template<>
void Parallel2d::max_to<int>(int* array, int len, int dest)
{
if(rank() == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_INT,MPI_MAX,dest,lat_world_comm_);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_INT,MPI_MAX,dest,lat_world_comm_);
}
template<>
void Parallel2d::max_to<long>(long* array, int len, int dest)
{
if(rank() == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_LONG,MPI_MAX,dest,lat_world_comm_);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_LONG,MPI_MAX,dest,lat_world_comm_);
}
template<class Type>
void Parallel2d::max_dim0_to(Type& number, int dest)
{
max_dim0_to(&number,1,dest);
}
template<class Type>
void Parallel2d::max_dim0_to(Type* array, int len, int dest)
{
//Gather numbers at root
Type* gather;
if( grid_rank_[0] == dest ) gather = new Type[len*grid_size_[0]];
MPI_Gather( array, len*sizeof(Type), MPI_BYTE,
gather, len*sizeof(Type), MPI_BYTE, dest,dim0_comm_[grid_rank_[1]]);
//Find max on root
if( grid_rank_[0] == dest )
{
int i, j;
for(i=0; i<grid_size_[0]; i++)
{
if( i!=dest ) for(j=0; j<len; j++)
{
if( gather[len*i+j] > array[j] ) array[j] = gather[len*i+j];
}
}
delete[] gather;
}
}
//specializations using MPI_REDUCE:
template<>
void Parallel2d::max_dim0_to<double>(double* array, int len, int dest)
{
if(grid_rank_[0] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_DOUBLE,MPI_MAX,dest,dim0_comm_[grid_rank_[1]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_DOUBLE,MPI_MAX,dest,dim0_comm_[grid_rank_[1]]);
}
template<>
void Parallel2d::max_dim0_to<float>(float* array, int len, int dest)
{
if(grid_rank_[0] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_FLOAT,MPI_MAX,dest,dim0_comm_[grid_rank_[1]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_FLOAT,MPI_MAX,dest,dim0_comm_[grid_rank_[1]]);
}
template<>
void Parallel2d::max_dim0_to<int>(int* array, int len, int dest)
{
if(grid_rank_[0] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_INT,MPI_MAX,dest,dim0_comm_[grid_rank_[1]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_INT,MPI_MAX,dest,dim0_comm_[grid_rank_[1]]);
}
template<>
void Parallel2d::max_dim0_to<long>(long* array, int len, int dest)
{
if(grid_rank_[0] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_LONG,MPI_MAX,dest,dim0_comm_[grid_rank_[1]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_LONG,MPI_MAX,dest,dim0_comm_[grid_rank_[1]]);
}
template<class Type>
void Parallel2d::max_dim1_to(Type& number, int dest)
{
max_dim1_to(&number,1,dest);
}
template<class Type>
void Parallel2d::max_dim1_to(Type* array, int len, int dest)
{
//Gather numbers at root
Type* gather;
if( grid_rank_[1] == dest ) gather = new Type[len*grid_size_[1]];
MPI_Gather( array, len*sizeof(Type), MPI_BYTE,
gather, len*sizeof(Type), MPI_BYTE, dest,dim1_comm_[grid_rank_[0]]);
//Find max on root
if( grid_rank_[1] == dest )
{
int i, j;
for(i=0; i<grid_size_[1]; i++)
{
if( i!=dest ) for(j=0; j<len; j++)
{
if( gather[len*i+j] > array[j] ) array[j] = gather[len*i+j];
}
}
delete[] gather;
}
}
//specializations using MPI_REDUCE:
template<>
void Parallel2d::max_dim1_to<double>(double* array, int len, int dest)
{
if(grid_rank_[1] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_DOUBLE,MPI_MAX,dest,dim1_comm_[grid_rank_[0]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_DOUBLE,MPI_MAX,dest,dim1_comm_[grid_rank_[0]]);
}
template<>
void Parallel2d::max_dim1_to<float>(float* array, int len, int dest)
{
if(grid_rank_[1] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_FLOAT,MPI_MAX,dest,dim1_comm_[grid_rank_[0]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_FLOAT,MPI_MAX,dest,dim1_comm_[grid_rank_[0]]);
}
template<>
void Parallel2d::max_dim1_to<int>(int* array, int len, int dest)
{
if(grid_rank_[1] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_INT,MPI_MAX,dest,dim1_comm_[grid_rank_[0]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_INT,MPI_MAX,dest,dim1_comm_[grid_rank_[0]]);
}
template<>
void Parallel2d::max_dim1_to<long>(long* array, int len, int dest)
{
if(grid_rank_[1] == dest)
MPI_Reduce(MPI_IN_PLACE,(void*)array,len,MPI_LONG,MPI_MAX,dest,dim1_comm_[grid_rank_[0]]);
else
MPI_Reduce((void*)array,(void*)array,len,MPI_LONG,MPI_MAX,dest,dim1_comm_[grid_rank_[0]]);
}
template<class Type> void Parallel2d::min(Type& number)
{
min( &number,1 );
}
template<class Type> void Parallel2d::min(Type* array, int len)
{
//Gather numbers at root
Type* gather;
if( rank() == root() ) gather = new Type[len*size()];
MPI_Gather( array, len*sizeof(Type), MPI_BYTE,
gather, len*sizeof(Type), MPI_BYTE, this->root(), lat_world_comm_);
//Find min on root
if( isRoot() )
{
int i, j;
for(i=0; i<size(); i++)
{
if( i!=root() ) for(j=0; j<len; j++)
{
if( gather[len*i+j] < array[j] ) array[j] = gather[len*i+j];
}
}
}
//Broadcast result
MPI_Bcast( array, len*sizeof(Type), MPI_BYTE, this->root(), lat_world_comm_);
// Tidy up (bug found by MDP 12/4/06)
if( rank() == root() ) delete[] gather;
}
template<> void Parallel2d::min<double>(double* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_DOUBLE,MPI_MIN,lat_world_comm_);
}
template<> void Parallel2d::min<float>(float* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_FLOAT,MPI_MIN,lat_world_comm_);
}
template<> void Parallel2d::min<int>(int* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_INT,MPI_MIN,lat_world_comm_);
}
template<> void Parallel2d::min<long>(long* array, int len)
{
MPI_Allreduce(MPI_IN_PLACE,array,len, MPI_LONG,MPI_MIN,lat_world_comm_);
}
template<class Type> void Parallel2d::min_dim0(Type& number)
{
min_dim0( &number,1 );
}
template<class Type> void Parallel2d::min_dim0(Type* array, int len)
{
//Gather numbers at root
Type* gather;
if( grid_rank_[0] == 0 ) gather = new Type[len*grid_size_[0]];
MPI_Gather( array, len*sizeof(Type), MPI_BYTE,
gather, len*sizeof(Type), MPI_BYTE, 0,dim0_comm_[grid_rank_[1]]);
//Find min on root
if( grid_rank_[0] == 0 )
{
int i, j;
for(i=0; i<grid_size_[0]; i++)
{