mirror of
https://github.com/NGSolve/netgen.git
synced 2024-12-25 21:40:33 +05:00
313 lines
9.0 KiB
C++
313 lines
9.0 KiB
C++
#ifndef FILE_PARALLEL
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#define FILE_PARALLEL
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#ifdef VTRACE
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#include "vt_user.h"
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#else
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#define VT_USER_START(n)
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#define VT_USER_END(n)
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#define VT_TRACER(n)
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#endif
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namespace netgen
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{
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#ifdef OLD
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#ifdef PARALLEL
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template <class T>
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inline MPI_Datatype MyGetMPIType ( )
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{ cerr << "ERROR in GetMPIType() -- no type found" << endl;return 0; }
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template <>
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inline MPI_Datatype MyGetMPIType<int> ( )
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{ return MPI_INT; }
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template <>
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inline MPI_Datatype MyGetMPIType<double> ( )
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{ return MPI_DOUBLE; }
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template <>
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inline MPI_Datatype MyGetMPIType<char> ( )
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{ return MPI_CHAR; }
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template<>
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inline MPI_Datatype MyGetMPIType<size_t> ( )
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{ return MPI_UINT64_T; }
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#else
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typedef int MPI_Datatype;
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template <class T> inline MPI_Datatype MyGetMPIType ( ) { return 0; }
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#endif
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#endif
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#ifdef PARALLEL
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enum { MPI_TAG_CMD = 110 };
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enum { MPI_TAG_MESH = 210 };
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enum { MPI_TAG_VIS = 310 };
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[[deprecated("mympi_send int, use comm.Send instead")]]
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inline void MyMPI_Send (int i, int dest, int tag, MPI_Comm comm)
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{
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int hi = i;
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MPI_Send( &hi, 1, MPI_INT, dest, tag, comm);
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}
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[[deprecated("mympi_revc int, use comm.Recv instead")]]
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inline void MyMPI_Recv (int & i, int src, int tag, MPI_Comm comm)
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{
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MPI_Status status;
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MPI_Recv( &i, 1, MPI_INT, src, tag, comm, &status);
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}
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[[deprecated("mympi_send string, use comm.Send instead")]]
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inline void MyMPI_Send (const string & s, int dest, int tag, MPI_Comm comm)
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{
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MPI_Send( const_cast<char*> (s.c_str()), s.length(), MPI_CHAR, dest, tag, comm);
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}
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[[deprecated("mympi_revc string, use comm.Recv instead")]]
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inline void MyMPI_Recv (string & s, int src, int tag, MPI_Comm comm)
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{
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MPI_Status status;
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int len;
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MPI_Probe (src, tag, MPI_COMM_WORLD, &status);
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MPI_Get_count (&status, MPI_CHAR, &len);
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s.assign (len, ' ');
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MPI_Recv( &s[0], len, MPI_CHAR, src, tag, comm, &status);
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}
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template <class T, int BASE>
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[[deprecated("mympi_send ngflatarray, use comm.send instead")]]
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inline void MyMPI_Send (NgFlatArray<T, BASE> s, int dest, int tag, MPI_Comm comm)
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{
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MPI_Send( &s.First(), s.Size(), GetMPIType<T>(), dest, tag, comm);
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}
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template <class T, int BASE>
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[[deprecated("mympi_recv ngflatarray, use comm.Recv instead")]]
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inline void MyMPI_Recv ( NgFlatArray<T, BASE> s, int src, int tag, MPI_Comm comm)
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{
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MPI_Status status;
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MPI_Recv( &s.First(), s.Size(), GetMPIType<T>(), src, tag, comm, &status);
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}
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template <class T, int BASE>
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[[deprecated("use ngcore - Array insterad")]]
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inline void MyMPI_Recv ( NgArray <T, BASE> & s, int src, int tag, MPI_Comm comm)
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{
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MPI_Status status;
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int len;
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MPI_Probe (src, tag, comm, &status);
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MPI_Get_count (&status, GetMPIType<T>(), &len);
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s.SetSize (len);
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MPI_Recv( &s.First(), len, GetMPIType<T>(), src, tag, comm, &status);
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}
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template <class T, int BASE>
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[[deprecated("use ngcore - Array insterad")]]
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inline int MyMPI_Recv ( NgArray <T, BASE> & s, int tag, MPI_Comm comm)
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{
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MPI_Status status;
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int len;
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MPI_Probe (MPI_ANY_SOURCE, tag, comm, &status);
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int src = status.MPI_SOURCE;
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MPI_Get_count (&status, GetMPIType<T>(), &len);
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s.SetSize (len);
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MPI_Recv( &s.First(), len, GetMPIType<T>(), src, tag, comm, &status);
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return src;
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}
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/*
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template <class T, int BASE>
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inline void MyMPI_ISend (NgFlatArray<T, BASE> s, int dest, int tag, MPI_Request & request)
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{
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MPI_Isend( &s.First(), s.Size(), MyGetMPIType<T>(), dest, tag, MPI_COMM_WORLD, & request);
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}
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template <class T, int BASE>
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inline void MyMPI_IRecv (NgFlatArray<T, BASE> s, int dest, int tag, MPI_Request & request)
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{
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MPI_Irecv( &s.First(), s.Size(), MyGetMPIType<T>(), dest, tag, MPI_COMM_WORLD, & request);
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}
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*/
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template <class T, int BASE>
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[[deprecated("mympi_isend ngflatarray, use comm.send instead")]]
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[[deprecated("use ngcore - Array insterad")]]
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inline MPI_Request MyMPI_ISend (NgFlatArray<T, BASE> s, int dest, int tag, MPI_Comm comm)
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{
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MPI_Request request;
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MPI_Isend( &s.First(), s.Size(), GetMPIType<T>(), dest, tag, comm, &request);
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return request;
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}
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template <class T, int BASE>
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[[deprecated("mympi_irecv ngflatarray, use comm.recv instead")]]
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inline MPI_Request MyMPI_IRecv (NgFlatArray<T, BASE> s, int dest, int tag, MPI_Comm comm)
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{
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MPI_Request request;
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MPI_Irecv( &s.First(), s.Size(), GetMPIType<T>(), dest, tag, comm, &request);
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return request;
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}
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/*
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template <class T, int BASE>
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inline void MyMPI_ISend (NgFlatArray<T, BASE> s, int dest, int tag)
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{
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MPI_Request request;
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MPI_Isend( &s.First(), s.Size(), MyGetMPIType<T>(), dest, tag, MPI_COMM_WORLD, &request);
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MPI_Request_free (&request);
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}
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template <class T, int BASE>
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inline void MyMPI_IRecv (NgFlatArray<T, BASE> s, int dest, int tag)
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{
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MPI_Request request;
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MPI_Irecv( &s.First(), s.Size(), MyGetMPIType<T>(), dest, tag, MPI_COMM_WORLD, &request);
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MPI_Request_free (&request);
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}
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*/
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/*
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send a table entry to each of the processes in the group ...
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receive-table entries will be set
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*/
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template <typename T>
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[[deprecated("do we need that ? ")]]
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inline void MyMPI_ExchangeTable (TABLE<T> & send_data,
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TABLE<T> & recv_data, int tag,
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const NgMPI_Comm & comm)
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{
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int rank = comm.Rank();
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int ntasks = comm.Size();
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Array<int> send_sizes(ntasks);
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Array<int> recv_sizes(ntasks);
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for (int i = 0; i < ntasks; i++)
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send_sizes[i] = send_data[i].Size();
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comm.AllToAll (send_sizes, recv_sizes);
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for (int i = 0; i < ntasks; i++)
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recv_data.SetEntrySize (i, recv_sizes[i], sizeof(T));
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Array<MPI_Request> requests;
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for (int dest = 0; dest < ntasks; dest++)
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if (dest != rank && send_data[dest].Size())
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requests.Append (comm.ISend (FlatArray<T>(send_data[dest]), dest, tag));
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for (int dest = 0; dest < ntasks; dest++)
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if (dest != rank && recv_data[dest].Size())
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requests.Append (comm.IRecv (FlatArray<T>(recv_data[dest]), dest, tag));
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MyMPI_WaitAll (requests);
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}
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template <typename T>
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[[deprecated("do we need that ? ")]]
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inline void MyMPI_ExchangeTable (DynamicTable<T> & send_data,
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DynamicTable<T> & recv_data, int tag,
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const NgMPI_Comm & comm)
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{
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int rank = comm.Rank();
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int ntasks = comm.Size();
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Array<int> send_sizes(ntasks);
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Array<int> recv_sizes(ntasks);
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for (int i = 0; i < ntasks; i++)
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send_sizes[i] = send_data[i].Size();
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comm.AllToAll (send_sizes, recv_sizes);
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// for (int i = 0; i < ntasks; i++)
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// recv_data.SetEntrySize (i, recv_sizes[i], sizeof(T));
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recv_data = DynamicTable<T> (recv_sizes, true);
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Array<MPI_Request> requests;
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for (int dest = 0; dest < ntasks; dest++)
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if (dest != rank && send_data[dest].Size())
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requests.Append (comm.ISend (FlatArray<T>(send_data[dest]), dest, tag));
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for (int dest = 0; dest < ntasks; dest++)
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if (dest != rank && recv_data[dest].Size())
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requests.Append (comm.IRecv (FlatArray<T>(recv_data[dest]), dest, tag));
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MyMPI_WaitAll (requests);
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}
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[[deprecated("do we still send commands?")]]
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extern void MyMPI_SendCmd (const char * cmd);
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[[deprecated("do we still send commands?")]]
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extern string MyMPI_RecvCmd ();
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template <class T>
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[[deprecated("use comm.BCast instead")]]
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inline void MyMPI_Bcast (T & s, MPI_Comm comm)
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{
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MPI_Bcast (&s, 1, GetMPIType<T>(), 0, comm);
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}
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template <class T>
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[[deprecated("use comm.BCast instead")]]
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inline void MyMPI_Bcast (NgArray<T, 0> & s, NgMPI_Comm comm)
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{
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int size = s.Size();
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MyMPI_Bcast (size, comm);
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// if (MyMPI_GetId(comm) != 0) s.SetSize (size);
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if (comm.Rank() != 0) s.SetSize (size);
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MPI_Bcast (&s[0], size, GetMPIType<T>(), 0, comm);
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}
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template <class T>
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[[deprecated("use comm.BCast instead")]]
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inline void MyMPI_Bcast (NgArray<T, 0> & s, int root, MPI_Comm comm)
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{
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int id;
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MPI_Comm_rank(comm, &id);
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int size = s.Size();
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MPI_Bcast (&size, 1, MPI_INT, root, comm);
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if (id != root) s.SetSize (size);
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if ( !size ) return;
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MPI_Bcast (&s[0], size, GetMPIType<T>(), root, comm);
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}
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template <class T, class T2>
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[[deprecated("mympi_allgather deprecated, use comm.allgather")]]
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inline void MyMPI_Allgather (const T & send, NgFlatArray<T2> recv, MPI_Comm comm)
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{
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MPI_Allgather( const_cast<T*> (&send), 1, GetMPIType<T>(), &recv[0], 1, GetMPIType<T2>(), comm);
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}
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template <class T, class T2>
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[[deprecated("mympi_alltoall deprecated, use comm.alltoall")]]
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inline void MyMPI_Alltoall (NgFlatArray<T> send, NgFlatArray<T2> recv, MPI_Comm comm)
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{
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MPI_Alltoall( &send[0], 1, GetMPIType<T>(), &recv[0], 1, GetMPIType<T2>(), comm);
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}
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#endif // PARALLEL
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}
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#endif
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