/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
* (C) 2010 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include "mpiimpl.h"
/*
=== BEGIN_MPI_T_CVAR_INFO_BLOCK ===
cvars:
- name : MPIR_CVAR_IALLTOALLV_INTRA_ALGORITHM
category : COLLECTIVE
type : string
default : auto
class : device
verbosity : MPI_T_VERBOSITY_USER_BASIC
scope : MPI_T_SCOPE_ALL_EQ
description : |-
Variable to select ialltoallv algorithm
auto - Internal algorithm selection
blocked - Force blocked algorithm
inplace - Force inplace algorithm
pairwise_exchange - Force pairwise exchange algorithm
- name : MPIR_CVAR_IALLTOALLV_INTER_ALGORITHM
category : COLLECTIVE
type : string
default : auto
class : device
verbosity : MPI_T_VERBOSITY_USER_BASIC
scope : MPI_T_SCOPE_ALL_EQ
description : |-
Variable to select ialltoallv algorithm
auto - Internal algorithm selection
- name : MPIR_CVAR_IALLTOALLV_DEVICE_COLLECTIVE
category : COLLECTIVE
type : boolean
default : true
class : device
verbosity : MPI_T_VERBOSITY_USER_BASIC
scope : MPI_T_SCOPE_ALL_EQ
description : >-
If set to true, MPI_Ialltoallv will allow the device to override the
MPIR-level collective algorithms. The device still has the
option to call the MPIR-level algorithms manually.
If set to false, the device-level ialltoallv function will not be
called.
=== END_MPI_T_CVAR_INFO_BLOCK ===
*/
/* -- Begin Profiling Symbol Block for routine MPI_Ialltoallv */
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_Ialltoallv = PMPI_Ialltoallv
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_Ialltoallv MPI_Ialltoallv
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_Ialltoallv as PMPI_Ialltoallv
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_Ialltoallv(const void *sendbuf, const int sendcounts[], const int sdispls[],
MPI_Datatype sendtype, void *recvbuf, const int recvcounts[],
const int rdispls[], MPI_Datatype recvtype, MPI_Comm comm, MPI_Request * request)
__attribute__ ((weak, alias("PMPI_Ialltoallv")));
#endif
/* -- End Profiling Symbol Block */
/* Define MPICH_MPI_FROM_PMPI if weak symbols are not supported to build
the MPI routines */
#ifndef MPICH_MPI_FROM_PMPI
#undef MPI_Ialltoallv
#define MPI_Ialltoallv PMPI_Ialltoallv
/* any non-MPI functions go here, especially non-static ones */
#undef FUNCNAME
#define FUNCNAME MPIR_Ialltoallv_sched_intra_auto
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
int MPIR_Ialltoallv_sched_intra_auto(const void *sendbuf, const int sendcounts[],
const int sdispls[], MPI_Datatype sendtype, void *recvbuf,
const int recvcounts[], const int rdispls[],
MPI_Datatype recvtype, MPIR_Comm * comm_ptr, MPIR_Sched_t s)
{
int mpi_errno = MPI_SUCCESS;
MPIR_Assert(comm_ptr->comm_kind == MPIR_COMM_KIND__INTRACOMM);
if (sendbuf == MPI_IN_PLACE) {
mpi_errno = MPIR_Ialltoallv_sched_intra_inplace(sendbuf, sendcounts, sdispls,
sendtype, recvbuf, recvcounts,
rdispls, recvtype, comm_ptr, s);
} else {
mpi_errno = MPIR_Ialltoallv_sched_intra_blocked(sendbuf, sendcounts, sdispls,
sendtype, recvbuf, recvcounts,
rdispls, recvtype, comm_ptr, s);
}
return mpi_errno;
}
#undef FUNCNAME
#define FUNCNAME MPIR_Ialltoallv_sched_inter_auto
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
int MPIR_Ialltoallv_sched_inter_auto(const void *sendbuf, const int sendcounts[],
const int sdispls[], MPI_Datatype sendtype, void *recvbuf,
const int recvcounts[], const int rdispls[],
MPI_Datatype recvtype, MPIR_Comm * comm_ptr, MPIR_Sched_t s)
{
int mpi_errno = MPI_SUCCESS;
mpi_errno = MPIR_Ialltoallv_sched_inter_pairwise_exchange(sendbuf, sendcounts, sdispls,
sendtype, recvbuf, recvcounts,
rdispls, recvtype, comm_ptr, s);
return mpi_errno;
}
#undef FUNCNAME
#define FUNCNAME MPIR_Ialltoallv_sched_impl
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
int MPIR_Ialltoallv_sched_impl(const void *sendbuf, const int sendcounts[], const int sdispls[],
MPI_Datatype sendtype, void *recvbuf, const int recvcounts[],
const int rdispls[], MPI_Datatype recvtype, MPIR_Comm * comm_ptr,
MPIR_Sched_t s)
{
int mpi_errno = MPI_SUCCESS;
if (comm_ptr->comm_kind == MPIR_COMM_KIND__INTRACOMM) {
/* intracommunicator */
switch (MPIR_Ialltoallv_intra_algo_choice) {
case MPIR_IALLTOALLV_INTRA_ALGO_BLOCKED:
mpi_errno = MPIR_Ialltoallv_sched_intra_blocked(sendbuf, sendcounts, sdispls,
sendtype, recvbuf, recvcounts,
rdispls, recvtype, comm_ptr, s);
break;
case MPIR_IALLTOALLV_INTRA_ALGO_INPLACE:
mpi_errno = MPIR_Ialltoallv_sched_intra_inplace(sendbuf, sendcounts, sdispls,
sendtype, recvbuf, recvcounts,
rdispls, recvtype, comm_ptr, s);
break;
case MPIR_IALLTOALLV_INTRA_ALGO_AUTO:
MPL_FALLTHROUGH;
default:
mpi_errno = MPIR_Ialltoallv_sched_intra_auto(sendbuf, sendcounts, sdispls,
sendtype, recvbuf, recvcounts, rdispls,
recvtype, comm_ptr, s);
break;
}
} else {
/* intercommunicator */
switch (MPIR_Ialltoallv_inter_algo_choice) {
case MPIR_IALLTOALLV_INTER_ALGO_PAIRWISE_EXCHANGE:
mpi_errno =
MPIR_Ialltoallv_sched_inter_pairwise_exchange(sendbuf, sendcounts, sdispls,
sendtype, recvbuf, recvcounts,
rdispls, recvtype, comm_ptr, s);
break;
case MPIR_IALLTOALLV_INTER_ALGO_AUTO:
MPL_FALLTHROUGH;
default:
mpi_errno = MPIR_Ialltoallv_sched_inter_auto(sendbuf, sendcounts, sdispls,
sendtype, recvbuf, recvcounts, rdispls,
recvtype, comm_ptr, s);
break;
}
}
return mpi_errno;
}
#undef FUNCNAME
#define FUNCNAME MPIR_Ialltoallv_sched
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
int MPIR_Ialltoallv_sched(const void *sendbuf, const int sendcounts[], const int sdispls[],
MPI_Datatype sendtype, void *recvbuf, const int recvcounts[],
const int rdispls[], MPI_Datatype recvtype, MPIR_Comm * comm_ptr,
MPIR_Sched_t s)
{
int mpi_errno = MPI_SUCCESS;
if (MPIR_CVAR_IALLTOALLV_DEVICE_COLLECTIVE && MPIR_CVAR_DEVICE_COLLECTIVES) {
mpi_errno = MPID_Ialltoallv_sched(sendbuf, sendcounts, sdispls, sendtype, recvbuf,
recvcounts, rdispls, recvtype, comm_ptr, s);
} else {
mpi_errno = MPIR_Ialltoallv_sched_impl(sendbuf, sendcounts, sdispls, sendtype, recvbuf,
recvcounts, rdispls, recvtype, comm_ptr, s);
}
return mpi_errno;
}
#undef FUNCNAME
#define FUNCNAME MPIR_Ialltoallv_impl
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
int MPIR_Ialltoallv_impl(const void *sendbuf, const int sendcounts[], const int sdispls[],
MPI_Datatype sendtype, void *recvbuf, const int recvcounts[],
const int rdispls[], MPI_Datatype recvtype, MPIR_Comm * comm_ptr,
MPIR_Request ** request)
{
int mpi_errno = MPI_SUCCESS;
int tag = -1;
MPIR_Sched_t s = MPIR_SCHED_NULL;
*request = NULL;
mpi_errno = MPIR_Sched_next_tag(comm_ptr, &tag);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
mpi_errno = MPIR_Sched_create(&s);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
mpi_errno =
MPIR_Ialltoallv_sched(sendbuf, sendcounts, sdispls, sendtype, recvbuf, recvcounts, rdispls,
recvtype, comm_ptr, s);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
mpi_errno = MPIR_Sched_start(&s, comm_ptr, tag, request);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
fn_exit:
return mpi_errno;
fn_fail:
goto fn_exit;
}
#undef FUNCNAME
#define FUNCNAME MPIR_Ialltoallv
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
int MPIR_Ialltoallv(const void *sendbuf, const int sendcounts[], const int sdispls[],
MPI_Datatype sendtype, void *recvbuf, const int recvcounts[],
const int rdispls[], MPI_Datatype recvtype, MPIR_Comm * comm_ptr,
MPIR_Request ** request)
{
int mpi_errno = MPI_SUCCESS;
if (MPIR_CVAR_IALLTOALLV_DEVICE_COLLECTIVE && MPIR_CVAR_DEVICE_COLLECTIVES) {
mpi_errno = MPID_Ialltoallv(sendbuf, sendcounts, sdispls, sendtype, recvbuf,
recvcounts, rdispls, recvtype, comm_ptr, request);
} else {
mpi_errno = MPIR_Ialltoallv_impl(sendbuf, sendcounts, sdispls, sendtype, recvbuf,
recvcounts, rdispls, recvtype, comm_ptr, request);
}
return mpi_errno;
}
#endif /* MPICH_MPI_FROM_PMPI */
#undef FUNCNAME
#define FUNCNAME MPI_Ialltoallv
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
/*@
MPI_Ialltoallv - Sends data from all to all processes in a nonblocking way;
each process may send a different amount of data and provide displacements
for the input and output data.
Input Parameters:
+ sendbuf - starting address of the send buffer (choice)
. sendcounts - non-negative integer array (of length group size) specifying the number of elements to send to each processor
. sdispls - integer array (of length group size). Entry j specifies the displacement relative to sendbuf from which to take the outgoing data destined for process j
. sendtype - data type of send buffer elements (handle)
. recvcounts - non-negative integer array (of length group size) specifying the number of elements that can be received from each processor
. rdispls - integer array (of length group size). Entry i specifies the displacement relative to recvbuf at which to place the incoming data from process i
. recvtype - data type of receive buffer elements (handle)
- comm - communicator (handle)
Output Parameters:
+ recvbuf - starting address of the receive buffer (choice)
- request - communication request (handle)
.N ThreadSafe
.N Fortran
.N Errors
@*/
int MPI_Ialltoallv(const void *sendbuf, const int sendcounts[], const int sdispls[],
MPI_Datatype sendtype, void *recvbuf, const int recvcounts[],
const int rdispls[], MPI_Datatype recvtype, MPI_Comm comm, MPI_Request * request)
{
int mpi_errno = MPI_SUCCESS;
MPIR_Comm *comm_ptr = NULL;
MPIR_Request *request_ptr = NULL;
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_IALLTOALLV);
MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_IALLTOALLV);
/* Validate parameters, especially handles needing to be converted */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
if (sendbuf != MPI_IN_PLACE)
MPIR_ERRTEST_DATATYPE(sendtype, "sendtype", mpi_errno);
MPIR_ERRTEST_DATATYPE(recvtype, "recvtype", mpi_errno);
MPIR_ERRTEST_COMM(comm, mpi_errno);
/* TODO more checks may be appropriate */
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* Convert MPI object handles to object pointers */
MPIR_Comm_get_ptr(comm, comm_ptr);
/* Validate parameters and objects (post conversion) */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_Comm_valid_ptr(comm_ptr, mpi_errno, FALSE);
if (mpi_errno != MPI_SUCCESS)
goto fn_fail;
if (sendbuf != MPI_IN_PLACE) {
MPIR_ERRTEST_ARGNULL(sendcounts, "sendcounts", mpi_errno);
MPIR_ERRTEST_ARGNULL(sdispls, "sdispls", mpi_errno);
if (HANDLE_GET_KIND(sendtype) != HANDLE_KIND_BUILTIN) {
MPIR_Datatype *sendtype_ptr = NULL;
MPIR_Datatype_get_ptr(sendtype, sendtype_ptr);
MPIR_Datatype_valid_ptr(sendtype_ptr, mpi_errno);
if (mpi_errno != MPI_SUCCESS)
goto fn_fail;
MPIR_Datatype_committed_ptr(sendtype_ptr, mpi_errno);
if (mpi_errno != MPI_SUCCESS)
goto fn_fail;
}
}
MPIR_ERRTEST_ARGNULL(recvcounts, "recvcounts", mpi_errno);
MPIR_ERRTEST_ARGNULL(rdispls, "rdispls", mpi_errno);
if (HANDLE_GET_KIND(recvtype) != HANDLE_KIND_BUILTIN) {
MPIR_Datatype *recvtype_ptr = NULL;
MPIR_Datatype_get_ptr(recvtype, recvtype_ptr);
MPIR_Datatype_valid_ptr(recvtype_ptr, mpi_errno);
if (mpi_errno != MPI_SUCCESS)
goto fn_fail;
MPIR_Datatype_committed_ptr(recvtype_ptr, mpi_errno);
if (mpi_errno != MPI_SUCCESS)
goto fn_fail;
}
MPIR_ERRTEST_ARGNULL(request, "request", mpi_errno);
if (comm_ptr->comm_kind == MPIR_COMM_KIND__INTRACOMM &&
sendbuf != MPI_IN_PLACE && sendcounts == recvcounts && sendtype == recvtype)
MPIR_ERRTEST_ALIAS_COLL(sendbuf, recvbuf, mpi_errno);
/* TODO more checks may be appropriate (counts, in_place, buffer aliasing, etc) */
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
mpi_errno = MPIR_Ialltoallv(sendbuf, sendcounts, sdispls, sendtype, recvbuf,
recvcounts, rdispls, recvtype, comm_ptr, &request_ptr);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
/* create a complete request, if needed */
if (!request_ptr)
request_ptr = MPIR_Request_create_complete(MPIR_REQUEST_KIND__COLL);
/* return the handle of the request to the user */
*request = request_ptr->handle;
/* ... end of body of routine ... */
fn_exit:
MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_IALLTOALLV);
MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
return mpi_errno;
fn_fail:
/* --BEGIN ERROR HANDLING-- */
#ifdef HAVE_ERROR_CHECKING
{
mpi_errno =
MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
"**mpi_ialltoallv",
"**mpi_ialltoallv %p %p %p %D %p %p %p %D %C %p", sendbuf,
sendcounts, sdispls, sendtype, recvbuf, recvcounts, rdispls,
recvtype, comm, request);
}
#endif
mpi_errno = MPIR_Err_return_comm(comm_ptr, FCNAME, mpi_errno);
goto fn_exit;
/* --END ERROR HANDLING-- */
}