/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
*
* (C) 2001 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include "mpiimpl.h"
#include "datatype.h"
/* -- Begin Profiling Symbol Block for routine MPI_Type_vector */
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_Type_vector = PMPI_Type_vector
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_Type_vector MPI_Type_vector
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_Type_vector as PMPI_Type_vector
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_Type_vector(int count, int blocklength, int stride, MPI_Datatype oldtype,
MPI_Datatype * newtype) __attribute__ ((weak, alias("PMPI_Type_vector")));
#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_Type_vector
#define MPI_Type_vector PMPI_Type_vector
/*@
MPIR_Type_vector - create a vector datatype
Input Parameters:
+ count - number of blocks in vector
. blocklength - number of elements in each block
. stride - distance from beginning of one block to the next (see next
parameter for units)
. strideinbytes - if nonzero, then stride is in bytes, otherwise stride
is in terms of extent of oldtype
- oldtype - type (using handle) of datatype on which vector is based
Output Parameters:
. newtype - handle of new vector datatype
Return Value:
0 on success, MPI error code on failure.
@*/
int MPIR_Type_vector(int count,
int blocklength,
MPI_Aint stride,
int strideinbytes, MPI_Datatype oldtype, MPI_Datatype * newtype)
{
int mpi_errno = MPI_SUCCESS;
int is_builtin, old_is_contig;
MPI_Aint el_sz, old_sz;
MPI_Datatype el_type;
MPI_Aint old_lb, old_ub, old_extent, old_true_lb, old_true_ub, eff_stride;
MPIR_Datatype *new_dtp;
if (count == 0)
return MPII_Type_zerolen(newtype);
/* allocate new datatype object and handle */
new_dtp = (MPIR_Datatype *) MPIR_Handle_obj_alloc(&MPIR_Datatype_mem);
if (!new_dtp) {
/* --BEGIN ERROR HANDLING-- */
mpi_errno = MPIR_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,
"MPIR_Type_vector", __LINE__, MPI_ERR_OTHER, "**nomem", 0);
return mpi_errno;
/* --END ERROR HANDLING-- */
}
/* handle is filled in by MPIR_Handle_obj_alloc() */
MPIR_Object_set_ref(new_dtp, 1);
new_dtp->is_permanent = 0;
new_dtp->is_committed = 0;
new_dtp->attributes = NULL;
new_dtp->cache_id = 0;
new_dtp->name[0] = 0;
new_dtp->contents = NULL;
new_dtp->dataloop = NULL;
new_dtp->dataloop_size = -1;
new_dtp->dataloop_depth = -1;
is_builtin = (HANDLE_GET_KIND(oldtype) == HANDLE_KIND_BUILTIN);
if (is_builtin) {
el_sz = (MPI_Aint) MPIR_Datatype_get_basic_size(oldtype);
el_type = oldtype;
old_lb = 0;
old_true_lb = 0;
old_ub = el_sz;
old_true_ub = el_sz;
old_sz = el_sz;
old_extent = el_sz;
old_is_contig = 1;
new_dtp->size = (MPI_Aint) count *(MPI_Aint) blocklength *el_sz;
new_dtp->has_sticky_lb = 0;
new_dtp->has_sticky_ub = 0;
new_dtp->alignsize = el_sz; /* ??? */
new_dtp->n_builtin_elements = count * blocklength;
new_dtp->builtin_element_size = el_sz;
new_dtp->basic_type = el_type;
new_dtp->max_contig_blocks = count;
eff_stride = (strideinbytes) ? stride : (stride * el_sz);
} else { /* user-defined base type (oldtype) */
MPIR_Datatype *old_dtp;
MPIR_Datatype_get_ptr(oldtype, old_dtp);
el_sz = old_dtp->builtin_element_size;
el_type = old_dtp->basic_type;
old_lb = old_dtp->lb;
old_true_lb = old_dtp->true_lb;
old_ub = old_dtp->ub;
old_true_ub = old_dtp->true_ub;
old_sz = old_dtp->size;
old_extent = old_dtp->extent;
MPIR_Datatype_is_contig(oldtype, &old_is_contig);
new_dtp->size = count * blocklength * old_dtp->size;
new_dtp->has_sticky_lb = old_dtp->has_sticky_lb;
new_dtp->has_sticky_ub = old_dtp->has_sticky_ub;
new_dtp->alignsize = old_dtp->alignsize;
new_dtp->n_builtin_elements = count * blocklength * old_dtp->n_builtin_elements;
new_dtp->builtin_element_size = el_sz;
new_dtp->basic_type = el_type;
new_dtp->max_contig_blocks = old_dtp->max_contig_blocks * count * blocklength;
eff_stride = (strideinbytes) ? stride : (stride * old_dtp->extent);
}
MPII_DATATYPE_VECTOR_LB_UB((MPI_Aint) count,
eff_stride,
(MPI_Aint) blocklength,
old_lb, old_ub, old_extent, new_dtp->lb, new_dtp->ub);
new_dtp->true_lb = new_dtp->lb + (old_true_lb - old_lb);
new_dtp->true_ub = new_dtp->ub + (old_true_ub - old_ub);
new_dtp->extent = new_dtp->ub - new_dtp->lb;
/* new type is only contig for N types if old one was, and
* size and extent of new type are equivalent, and stride is
* equal to blocklength * size of old type.
*/
if ((MPI_Aint) (new_dtp->size) == new_dtp->extent &&
eff_stride == (MPI_Aint) blocklength * old_sz && old_is_contig) {
new_dtp->is_contig = 1;
new_dtp->max_contig_blocks = 1;
} else {
new_dtp->is_contig = 0;
}
*newtype = new_dtp->handle;
MPL_DBG_MSG_P(MPIR_DBG_DATATYPE, VERBOSE, "vector type %x created.", new_dtp->handle);
return mpi_errno;
}
#undef FUNCNAME
#define FUNCNAME MPIR_Type_vector_impl
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
int MPIR_Type_vector_impl(int count, int blocklength, int stride, MPI_Datatype oldtype,
MPI_Datatype * newtype)
{
int mpi_errno = MPI_SUCCESS;
MPI_Datatype new_handle;
MPIR_Datatype *new_dtp;
int ints[3];
mpi_errno = MPIR_Type_vector(count, blocklength, (MPI_Aint) stride, 0, /* stride not in bytes, in extents */
oldtype, &new_handle);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
ints[0] = count;
ints[1] = blocklength;
ints[2] = stride;
MPIR_Datatype_get_ptr(new_handle, new_dtp);
mpi_errno = MPIR_Datatype_set_contents(new_dtp, MPI_COMBINER_VECTOR, 3, /* ints (cnt, blklen, str) */
0, /* aints */
1, /* types */
ints, NULL, &oldtype);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
MPIR_OBJ_PUBLISH_HANDLE(*newtype, new_handle);
fn_exit:
return mpi_errno;
fn_fail:
goto fn_exit;
}
#endif
#undef FUNCNAME
#define FUNCNAME MPI_Type_vector
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
/*@
MPI_Type_vector - Creates a vector (strided) datatype
Input Parameters:
+ count - number of blocks (nonnegative integer)
. blocklength - number of elements in each block
(nonnegative integer)
. stride - number of elements between start of each block (integer)
- oldtype - old datatype (handle)
Output Parameters:
. newtype - new datatype (handle)
.N ThreadSafe
.N Fortran
.N Errors
.N MPI_SUCCESS
.N MPI_ERR_ARG
.N MPI_ERR_OTHER
@*/
int MPI_Type_vector(int count,
int blocklength, int stride, MPI_Datatype oldtype, MPI_Datatype * newtype)
{
int mpi_errno = MPI_SUCCESS;
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_TYPE_VECTOR);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_TYPE_VECTOR);
/* Validate parameters, especially handles needing to be converted */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_Datatype *old_ptr = NULL;
MPIR_ERRTEST_COUNT(count, mpi_errno);
MPIR_ERRTEST_ARGNEG(blocklength, "blocklen", mpi_errno);
MPIR_ERRTEST_DATATYPE(oldtype, "datatype", mpi_errno);
if (oldtype != MPI_DATATYPE_NULL && HANDLE_GET_KIND(oldtype) != HANDLE_KIND_BUILTIN) {
MPIR_Datatype_get_ptr(oldtype, old_ptr);
MPIR_Datatype_valid_ptr(old_ptr, mpi_errno);
if (mpi_errno)
goto fn_fail;
}
MPIR_ERRTEST_ARGNULL(newtype, "newtype", mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
mpi_errno = MPIR_Type_vector_impl(count, blocklength, stride, oldtype, newtype);
if (mpi_errno)
goto fn_fail;
/* ... end of body of routine ... */
fn_exit:
MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_TYPE_VECTOR);
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_type_vector", "**mpi_type_vector %d %d %d %D %p", count,
blocklength, stride, oldtype, newtype);
}
#endif
mpi_errno = MPIR_Err_return_comm(NULL, FCNAME, mpi_errno);
goto fn_exit;
/* --END ERROR HANDLING-- */
}