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// -*- c++ -*-
//
// Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
// University Research and Technology
// Corporation. All rights reserved.
// Copyright (c) 2004-2005 The University of Tennessee and The University
// of Tennessee Research Foundation. All rights
// reserved.
// Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
// University of Stuttgart. All rights reserved.
// Copyright (c) 2004-2005 The Regents of the University of California.
// All rights reserved.
// Copyright (c) 2007-2016 Cisco Systems, Inc. All rights reserved.
// Copyright (c) 2011 FUJITSU LIMITED. All rights reserved.
// $COPYRIGHT$
//
// Additional copyrights may follow
//
// $HEADER$
//
//
// Point-to-Point
//
inline void
MPI::Comm::Send(const void *buf, int count,
const MPI::Datatype & datatype, int dest, int tag) const
{
(void)MPI_Send(const_cast<void *>(buf), count, datatype, dest, tag, mpi_comm);
}
inline void
MPI::Comm::Recv(void *buf, int count, const MPI::Datatype & datatype,
int source, int tag, MPI::Status & status) const
{
(void)MPI_Recv(buf, count, datatype, source, tag, mpi_comm, &status.mpi_status);
}
inline void
MPI::Comm::Recv(void *buf, int count, const MPI::Datatype & datatype,
int source, int tag) const
{
(void)MPI_Recv(buf, count, datatype, source,
tag, mpi_comm, MPI_STATUS_IGNORE);
}
inline void
MPI::Comm::Bsend(const void *buf, int count,
const MPI::Datatype & datatype, int dest, int tag) const
{
(void)MPI_Bsend(const_cast<void *>(buf), count, datatype,
dest, tag, mpi_comm);
}
inline void
MPI::Comm::Ssend(const void *buf, int count,
const MPI::Datatype & datatype, int dest, int tag) const
{
(void)MPI_Ssend(const_cast<void *>(buf), count, datatype, dest,
tag, mpi_comm);
}
inline void
MPI::Comm::Rsend(const void *buf, int count,
const MPI::Datatype & datatype, int dest, int tag) const
{
(void)MPI_Rsend(const_cast<void *>(buf), count, datatype,
dest, tag, mpi_comm);
}
inline MPI::Request
MPI::Comm::Isend(const void *buf, int count,
const MPI::Datatype & datatype, int dest, int tag) const
{
MPI_Request request;
(void)MPI_Isend(const_cast<void *>(buf), count, datatype,
dest, tag, mpi_comm, &request);
return request;
}
inline MPI::Request
MPI::Comm::Ibsend(const void *buf, int count,
const MPI::Datatype & datatype, int dest, int tag) const
{
MPI_Request request;
(void)MPI_Ibsend(const_cast<void *>(buf), count, datatype,
dest, tag, mpi_comm, &request);
return request;
}
inline MPI::Request
MPI::Comm::Issend(const void *buf, int count,
const MPI::Datatype & datatype, int dest, int tag) const
{
MPI_Request request;
(void)MPI_Issend(const_cast<void *>(buf), count, datatype,
dest, tag, mpi_comm, &request);
return request;
}
inline MPI::Request
MPI::Comm::Irsend(const void *buf, int count,
const MPI::Datatype & datatype, int dest, int tag) const
{
MPI_Request request;
(void)MPI_Irsend(const_cast<void *>(buf), count, datatype,
dest, tag, mpi_comm, &request);
return request;
}
inline MPI::Request
MPI::Comm::Irecv(void *buf, int count,
const MPI::Datatype & datatype, int source, int tag) const
{
MPI_Request request;
(void)MPI_Irecv(buf, count, datatype, source,
tag, mpi_comm, &request);
return request;
}
inline bool
MPI::Comm::Iprobe(int source, int tag, MPI::Status & status) const
{
int t;
(void)MPI_Iprobe(source, tag, mpi_comm, &t, &status.mpi_status);
return OPAL_INT_TO_BOOL(t);
}
inline bool
MPI::Comm::Iprobe(int source, int tag) const
{
int t;
(void)MPI_Iprobe(source, tag, mpi_comm, &t, MPI_STATUS_IGNORE);
return OPAL_INT_TO_BOOL(t);
}
inline void
MPI::Comm::Probe(int source, int tag, MPI::Status & status) const
{
(void)MPI_Probe(source, tag, mpi_comm, &status.mpi_status);
}
inline void
MPI::Comm::Probe(int source, int tag) const
{
(void)MPI_Probe(source, tag, mpi_comm, MPI_STATUS_IGNORE);
}
inline MPI::Prequest
MPI::Comm::Send_init(const void *buf, int count,
const MPI::Datatype & datatype, int dest, int tag) const
{
MPI_Request request;
(void)MPI_Send_init(const_cast<void *>(buf), count, datatype,
dest, tag, mpi_comm, &request);
return request;
}
inline MPI::Prequest
MPI::Comm::Bsend_init(const void *buf, int count,
const MPI::Datatype & datatype, int dest, int tag) const
{
MPI_Request request;
(void)MPI_Bsend_init(const_cast<void *>(buf), count, datatype,
dest, tag, mpi_comm, &request);
return request;
}
inline MPI::Prequest
MPI::Comm::Ssend_init(const void *buf, int count,
const MPI::Datatype & datatype, int dest, int tag) const
{
MPI_Request request;
(void)MPI_Ssend_init(const_cast<void *>(buf), count, datatype,
dest, tag, mpi_comm, &request);
return request;
}
inline MPI::Prequest
MPI::Comm::Rsend_init(const void *buf, int count,
const MPI::Datatype & datatype, int dest, int tag) const
{
MPI_Request request;
(void)MPI_Rsend_init(const_cast<void *>(buf), count, datatype,
dest, tag, mpi_comm, &request);
return request;
}
inline MPI::Prequest
MPI::Comm::Recv_init(void *buf, int count,
const MPI::Datatype & datatype, int source, int tag) const
{
MPI_Request request;
(void)MPI_Recv_init(buf, count, datatype, source,
tag, mpi_comm, &request);
return request;
}
inline void
MPI::Comm::Sendrecv(const void *sendbuf, int sendcount,
const MPI::Datatype & sendtype, int dest, int sendtag,
void *recvbuf, int recvcount,
const MPI::Datatype & recvtype, int source,
int recvtag, MPI::Status & status) const
{
(void)MPI_Sendrecv(const_cast<void *>(sendbuf), sendcount,
sendtype,
dest, sendtag, recvbuf, recvcount,
recvtype,
source, recvtag, mpi_comm, &status.mpi_status);
}
inline void
MPI::Comm::Sendrecv(const void *sendbuf, int sendcount,
const MPI::Datatype & sendtype, int dest, int sendtag,
void *recvbuf, int recvcount,
const MPI::Datatype & recvtype, int source,
int recvtag) const
{
(void)MPI_Sendrecv(const_cast<void *>(sendbuf), sendcount,
sendtype,
dest, sendtag, recvbuf, recvcount,
recvtype,
source, recvtag, mpi_comm, MPI_STATUS_IGNORE);
}
inline void
MPI::Comm::Sendrecv_replace(void *buf, int count,
const MPI::Datatype & datatype, int dest,
int sendtag, int source,
int recvtag, MPI::Status & status) const
{
(void)MPI_Sendrecv_replace(buf, count, datatype, dest,
sendtag, source, recvtag, mpi_comm,
&status.mpi_status);
}
inline void
MPI::Comm::Sendrecv_replace(void *buf, int count,
const MPI::Datatype & datatype, int dest,
int sendtag, int source,
int recvtag) const
{
(void)MPI_Sendrecv_replace(buf, count, datatype, dest,
sendtag, source, recvtag, mpi_comm,
MPI_STATUS_IGNORE);
}
//
// Groups, Contexts, and Communicators
//
inline MPI::Group
MPI::Comm::Get_group() const
{
MPI_Group group;
(void)MPI_Comm_group(mpi_comm, &group);
return group;
}
inline int
MPI::Comm::Get_size() const
{
int size;
(void)MPI_Comm_size (mpi_comm, &size);
return size;
}
inline int
MPI::Comm::Get_rank() const
{
int myrank;
(void)MPI_Comm_rank (mpi_comm, &myrank);
return myrank;
}
inline int
MPI::Comm::Compare(const MPI::Comm & comm1,
const MPI::Comm & comm2)
{
int result;
(void)MPI_Comm_compare(comm1, comm2, &result);
return result;
}
inline void
MPI::Comm::Free(void)
{
(void)MPI_Comm_free(&mpi_comm);
}
inline bool
MPI::Comm::Is_inter() const
{
int t;
(void)MPI_Comm_test_inter(mpi_comm, &t);
return OPAL_INT_TO_BOOL(t);
}
//
// Collective Communication
//
inline void
MPI::Comm::Barrier() const
{
(void)MPI_Barrier(mpi_comm);
}
inline void
MPI::Comm::Bcast(void *buffer, int count,
const MPI::Datatype& datatype, int root) const
{
(void)MPI_Bcast(buffer, count, datatype, root, mpi_comm);
}
inline void
MPI::Comm::Gather(const void *sendbuf, int sendcount,
const MPI::Datatype & sendtype,
void *recvbuf, int recvcount,
const MPI::Datatype & recvtype, int root) const
{
(void)MPI_Gather(const_cast<void *>(sendbuf), sendcount, sendtype,
recvbuf, recvcount, recvtype, root, mpi_comm);
}
inline void
MPI::Comm::Gatherv(const void *sendbuf, int sendcount,
const MPI::Datatype & sendtype, void *recvbuf,
const int recvcounts[], const int displs[],
const MPI::Datatype & recvtype, int root) const
{
(void)MPI_Gatherv(const_cast<void *>(sendbuf), sendcount, sendtype,
recvbuf, const_cast<int *>(recvcounts),
const_cast<int *>(displs),
recvtype, root, mpi_comm);
}
inline void
MPI::Comm::Scatter(const void *sendbuf, int sendcount,
const MPI::Datatype & sendtype,
void *recvbuf, int recvcount,
const MPI::Datatype & recvtype, int root) const
{
(void)MPI_Scatter(const_cast<void *>(sendbuf), sendcount, sendtype,
recvbuf, recvcount, recvtype, root, mpi_comm);
}
inline void
MPI::Comm::Scatterv(const void *sendbuf, const int sendcounts[],
const int displs[], const MPI::Datatype & sendtype,
void *recvbuf, int recvcount,
const MPI::Datatype & recvtype, int root) const
{
(void)MPI_Scatterv(const_cast<void *>(sendbuf),
const_cast<int *>(sendcounts),
const_cast<int *>(displs), sendtype,
recvbuf, recvcount, recvtype,
root, mpi_comm);
}
inline void
MPI::Comm::Allgather(const void *sendbuf, int sendcount,
const MPI::Datatype & sendtype, void *recvbuf,
int recvcount, const MPI::Datatype & recvtype) const
{
(void)MPI_Allgather(const_cast<void *>(sendbuf), sendcount,
sendtype, recvbuf, recvcount,
recvtype, mpi_comm);
}
inline void
MPI::Comm::Allgatherv(const void *sendbuf, int sendcount,
const MPI::Datatype & sendtype, void *recvbuf,
const int recvcounts[], const int displs[],
const MPI::Datatype & recvtype) const
{
(void)MPI_Allgatherv(const_cast<void *>(sendbuf), sendcount,
sendtype, recvbuf,
const_cast<int *>(recvcounts),
const_cast<int *>(displs),
recvtype, mpi_comm);
}
inline void
MPI::Comm::Alltoall(const void *sendbuf, int sendcount,
const MPI::Datatype & sendtype, void *recvbuf,
int recvcount, const MPI::Datatype & recvtype) const
{
(void)MPI_Alltoall(const_cast<void *>(sendbuf), sendcount,
sendtype, recvbuf, recvcount,
recvtype, mpi_comm);
}
inline void
MPI::Comm::Alltoallv(const void *sendbuf, const int sendcounts[],
const int sdispls[], const MPI::Datatype & sendtype,
void *recvbuf, const int recvcounts[],
const int rdispls[],
const MPI::Datatype & recvtype) const
{
(void)MPI_Alltoallv(const_cast<void *>(sendbuf),
const_cast<int *>(sendcounts),
const_cast<int *>(sdispls), sendtype, recvbuf,
const_cast<int *>(recvcounts),
const_cast<int *>(rdispls),
recvtype,mpi_comm);
}
inline void
MPI::Comm::Alltoallw(const void *sendbuf, const int sendcounts[],
const int sdispls[], const MPI::Datatype sendtypes[],
void *recvbuf, const int recvcounts[],
const int rdispls[],
const MPI::Datatype recvtypes[]) const
{
const int comm_size = Get_size();
MPI_Datatype *const data_type_tbl = new MPI_Datatype [2*comm_size];
// This must be done because MPI::Datatype arrays cannot be
// converted directly into MPI_Datatype arrays.
for (int i_rank=0; i_rank < comm_size; i_rank++) {
data_type_tbl[i_rank] = sendtypes[i_rank];
data_type_tbl[i_rank + comm_size] = recvtypes[i_rank];
}
(void)MPI_Alltoallw(const_cast<void *>(sendbuf),
const_cast<int *>(sendcounts),
const_cast<int *>(sdispls),
data_type_tbl, recvbuf,
const_cast<int *>(recvcounts),
const_cast<int *>(rdispls),
&data_type_tbl[comm_size], mpi_comm);
delete[] data_type_tbl;
}
inline void
MPI::Comm::Reduce(const void *sendbuf, void *recvbuf, int count,
const MPI::Datatype & datatype, const MPI::Op& op,
int root) const
{
(void)MPI_Reduce(const_cast<void *>(sendbuf), recvbuf, count, datatype, op, root, mpi_comm);
}
inline void
MPI::Comm::Allreduce(const void *sendbuf, void *recvbuf, int count,
const MPI::Datatype & datatype, const MPI::Op& op) const
{
(void)MPI_Allreduce (const_cast<void *>(sendbuf), recvbuf, count, datatype, op, mpi_comm);
}
inline void
MPI::Comm::Reduce_scatter(const void *sendbuf, void *recvbuf,
int recvcounts[],
const MPI::Datatype & datatype,
const MPI::Op& op) const
{
(void)MPI_Reduce_scatter(const_cast<void *>(sendbuf), recvbuf, recvcounts,
datatype, op, mpi_comm);
}
//
// Process Creation and Managemnt
//
inline void
MPI::Comm::Disconnect()
{
(void) MPI_Comm_disconnect(&mpi_comm);
}
inline MPI::Intercomm
MPI::Comm::Get_parent()
{
MPI_Comm parent;
MPI_Comm_get_parent(&parent);
return parent;
}
inline MPI::Intercomm
MPI::Comm::Join(const int fd)
{
MPI_Comm newcomm;
(void) MPI_Comm_join((int) fd, &newcomm);
return newcomm;
}
//
// External Interfaces
//
inline void
MPI::Comm::Get_name(char* comm_name, int& resultlen) const
{
(void) MPI_Comm_get_name(mpi_comm, comm_name, &resultlen);
}
inline void
MPI::Comm::Set_name(const char* comm_name)
{
(void) MPI_Comm_set_name(mpi_comm, const_cast<char *>(comm_name));
}
//
//Process Topologies
//
inline int
MPI::Comm::Get_topology() const
{
int status;
(void)MPI_Topo_test(mpi_comm, &status);
return status;
}
//
// Environmental Inquiry
//
inline void
MPI::Comm::Abort(int errorcode)
{
(void)MPI_Abort(mpi_comm, errorcode);
}
//
// These C++ bindings are for MPI-2.
// The MPI-1.2 functions called below are all
// going to be deprecated and replaced in MPI-2.
//
inline MPI::Errhandler
MPI::Comm::Get_errhandler() const
{
MPI_Errhandler errhandler;
MPI_Comm_get_errhandler(mpi_comm, &errhandler);
return errhandler;
}
inline void
MPI::Comm::Set_errhandler(const MPI::Errhandler& errhandler)
{
(void)MPI_Comm_set_errhandler(mpi_comm, errhandler);
}
inline void
MPI::Comm::Call_errhandler(int errorcode) const
{
(void) MPI_Comm_call_errhandler(mpi_comm, errorcode);
}
// 1) original Create_keyval that takes the first 2 arguments as C++
// functions
inline int
MPI::Comm::Create_keyval(MPI::Comm::Copy_attr_function* comm_copy_attr_fn,
MPI::Comm::Delete_attr_function* comm_delete_attr_fn,
void* extra_state)
{
// Back-end function does the heavy lifting
int ret, keyval;
ret = do_create_keyval(NULL, NULL,
comm_copy_attr_fn, comm_delete_attr_fn,
extra_state, keyval);
return (MPI_SUCCESS == ret) ? keyval : ret;
}
// 2) overload Create_keyval to take the first 2 arguments as C
// functions
inline int
MPI::Comm::Create_keyval(MPI_Comm_copy_attr_function* comm_copy_attr_fn,
MPI_Comm_delete_attr_function* comm_delete_attr_fn,
void* extra_state)
{
// Back-end function does the heavy lifting
int ret, keyval;
ret = do_create_keyval(comm_copy_attr_fn, comm_delete_attr_fn,
NULL, NULL,
extra_state, keyval);
return (MPI_SUCCESS == ret) ? keyval : ret;
}
// 3) overload Create_keyval to take the first 2 arguments as C++ & C
// functions
inline int
MPI::Comm::Create_keyval(MPI::Comm::Copy_attr_function* comm_copy_attr_fn,
MPI_Comm_delete_attr_function* comm_delete_attr_fn,
void* extra_state)
{
// Back-end function does the heavy lifting
int ret, keyval;
ret = do_create_keyval(NULL, comm_delete_attr_fn,
comm_copy_attr_fn, NULL,
extra_state, keyval);
return (MPI_SUCCESS == ret) ? keyval : ret;
}
// 4) overload Create_keyval to take the first 2 arguments as C & C++
// functions
inline int
MPI::Comm::Create_keyval(MPI_Comm_copy_attr_function* comm_copy_attr_fn,
MPI::Comm::Delete_attr_function* comm_delete_attr_fn,
void* extra_state)
{
// Back-end function does the heavy lifting
int ret, keyval;
ret = do_create_keyval(comm_copy_attr_fn, NULL,
NULL, comm_delete_attr_fn,
extra_state, keyval);
return (MPI_SUCCESS == ret) ? keyval : ret;
}
inline void
MPI::Comm::Free_keyval(int& comm_keyval)
{
(void) MPI_Comm_free_keyval(&comm_keyval);
}
inline void
MPI::Comm::Set_attr(int comm_keyval, const void* attribute_val) const
{
(void)MPI_Comm_set_attr(mpi_comm, comm_keyval, const_cast<void*>(attribute_val));
}
inline bool
MPI::Comm::Get_attr(int comm_keyval, void* attribute_val) const
{
int flag;
(void)MPI_Comm_get_attr(mpi_comm, comm_keyval, attribute_val, &flag);
return OPAL_INT_TO_BOOL(flag);
}
inline void
MPI::Comm::Delete_attr(int comm_keyval)
{
(void)MPI_Comm_delete_attr(mpi_comm, comm_keyval);
}
// Comment out the unused parameters so that compilers don't warn
// about them. Use comments instead of just deleting the param names
// outright so that we know/remember what they are.
inline int
MPI::Comm::NULL_COPY_FN(const MPI::Comm& /* oldcomm */,
int /* comm_keyval */,
void* /* extra_state */,
void* /* attribute_val_in */,
void* /* attribute_val_out */,
bool& flag)
{
flag = false;
return MPI_SUCCESS;
}
inline int
MPI::Comm::DUP_FN(const MPI::Comm& oldcomm, int comm_keyval,
void* extra_state, void* attribute_val_in,
void* attribute_val_out, bool& flag)
{
if (sizeof(bool) != sizeof(int)) {
int f = (int)flag;
int ret;
ret = MPI_COMM_DUP_FN(oldcomm, comm_keyval, extra_state,
attribute_val_in, attribute_val_out, &f);
flag = OPAL_INT_TO_BOOL(f);
return ret;
} else {
return MPI_COMM_DUP_FN(oldcomm, comm_keyval, extra_state,
attribute_val_in, attribute_val_out,
(int*)&flag);
}
}
// Comment out the unused parameters so that compilers don't warn
// about them. Use comments instead of just deleting the param names
// outright so that we know/remember what they are.
inline int
MPI::Comm::NULL_DELETE_FN(MPI::Comm& /* comm */,
int /* comm_keyval */,
void* /* attribute_val */,
void* /* extra_state */)
{
return MPI_SUCCESS;
}
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