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Big count support for datatypes #13460

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8afcb68
Big count support for datatypes
devreal Oct 23, 2025
2d389fa
Remove type_get_envelope.c.in
devreal Oct 24, 2025
be7197b
Fix copying of values darray in ompi_datatype_set_args
devreal Oct 24, 2025
5f3af4e
datatype_set_args: copy_count_array should not advance struct members
devreal Oct 25, 2025
de67a73
Adjust the datatype tests to new API
devreal Oct 25, 2025
f03693e
Fix offsets in datatype pack
devreal Oct 25, 2025
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50 changes: 26 additions & 24 deletions ompi/datatype/ompi_datatype.h
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,7 @@
#include "ompi/constants.h"
#include "opal/datatype/opal_convertor.h"
#include "opal/util/output.h"
#include "ompi/util/count_disp_array.h"
#include "mpi.h"

BEGIN_C_DECLS
Expand Down Expand Up @@ -124,7 +125,7 @@ OMPI_DECLSPEC int32_t ompi_datatype_default_convertors_init( void );
OMPI_DECLSPEC int32_t ompi_datatype_default_convertors_fini( void );

OMPI_DECLSPEC void ompi_datatype_dump (const ompi_datatype_t* pData);
OMPI_DECLSPEC ompi_datatype_t* ompi_datatype_create( int32_t expectedSize );
OMPI_DECLSPEC ompi_datatype_t* ompi_datatype_create( size_t expectedSize );

static inline int32_t
ompi_datatype_is_committed( const ompi_datatype_t* type )
Expand All @@ -151,7 +152,7 @@ ompi_datatype_is_predefined( const ompi_datatype_t* type )
}

static inline int32_t
ompi_datatype_is_contiguous_memory_layout( const ompi_datatype_t* type, int32_t count )
ompi_datatype_is_contiguous_memory_layout( const ompi_datatype_t* type, size_t count )
{
return opal_datatype_is_contiguous_memory_layout(&type->super, count);
}
Expand Down Expand Up @@ -189,27 +190,27 @@ ompi_datatype_add( ompi_datatype_t* pdtBase, const ompi_datatype_t* pdtAdd, size
OMPI_DECLSPEC int32_t
ompi_datatype_duplicate( const ompi_datatype_t* oldType, ompi_datatype_t** newType );

OMPI_DECLSPEC int32_t ompi_datatype_create_contiguous( int count, const ompi_datatype_t* oldType, ompi_datatype_t** newType );
OMPI_DECLSPEC int32_t ompi_datatype_create_vector( int count, int bLength, int stride,
OMPI_DECLSPEC int32_t ompi_datatype_create_contiguous( size_t count, const ompi_datatype_t* oldType, ompi_datatype_t** newType );
OMPI_DECLSPEC int32_t ompi_datatype_create_vector( size_t count, size_t bLength, ptrdiff_t stride,
const ompi_datatype_t* oldType, ompi_datatype_t** newType );
OMPI_DECLSPEC int32_t ompi_datatype_create_hvector( int count, int bLength, ptrdiff_t stride,
OMPI_DECLSPEC int32_t ompi_datatype_create_hvector( size_t count, size_t bLength, ptrdiff_t stride,
const ompi_datatype_t* oldType, ompi_datatype_t** newType );
OMPI_DECLSPEC int32_t ompi_datatype_create_indexed( int count, const int* pBlockLength, const int* pDisp,
OMPI_DECLSPEC int32_t ompi_datatype_create_indexed( size_t count, const ompi_count_array_t pBlockLength, const ompi_disp_array_t pDisp,
const ompi_datatype_t* oldType, ompi_datatype_t** newType );
OMPI_DECLSPEC int32_t ompi_datatype_create_hindexed( int count, const int* pBlockLength, const ptrdiff_t* pDisp,
OMPI_DECLSPEC int32_t ompi_datatype_create_hindexed( size_t count, const ompi_count_array_t pBlockLength, const ompi_disp_array_t pDisp,
const ompi_datatype_t* oldType, ompi_datatype_t** newType );
OMPI_DECLSPEC int32_t ompi_datatype_create_indexed_block( int count, int bLength, const int* pDisp,
OMPI_DECLSPEC int32_t ompi_datatype_create_indexed_block( size_t count, size_t bLength, const ompi_disp_array_t pDisp,
const ompi_datatype_t* oldType, ompi_datatype_t** newType );
OMPI_DECLSPEC int32_t ompi_datatype_create_hindexed_block( int count, int bLength, const ptrdiff_t* pDisp,
OMPI_DECLSPEC int32_t ompi_datatype_create_hindexed_block( size_t count, size_t bLength, const ompi_disp_array_t pDisp,
const ompi_datatype_t* oldType, ompi_datatype_t** newType );
OMPI_DECLSPEC int32_t ompi_datatype_create_struct( int count, const int* pBlockLength, const ptrdiff_t* pDisp,
OMPI_DECLSPEC int32_t ompi_datatype_create_struct( size_t count, const ompi_count_array_t pBlockLength, const ompi_disp_array_t pDisp,
ompi_datatype_t* const* pTypes, ompi_datatype_t** newType );
OMPI_DECLSPEC int32_t ompi_datatype_create_darray( int size, int rank, int ndims, int const* gsize_array,
int const* distrib_array, int const* darg_array,
int const* psize_array, int order, const ompi_datatype_t* oldtype,
OMPI_DECLSPEC int32_t ompi_datatype_create_darray( int size, int rank, int ndims, const ompi_count_array_t gsize_array,
const int* distrib_array, const int* darg_array,
const int* psize_array, int order, const ompi_datatype_t* oldtype,
ompi_datatype_t** newtype);
OMPI_DECLSPEC int32_t ompi_datatype_create_subarray(int ndims, int const* size_array, int const* subsize_array,
int const* start_array, int order,
OMPI_DECLSPEC int32_t ompi_datatype_create_subarray(int ndims, const ompi_count_array_t size_array, const ompi_count_array_t subsize_array,
const ompi_count_array_t start_array, int order,
const ompi_datatype_t* oldtype, ompi_datatype_t** newtype);
static inline int32_t
ompi_datatype_create_resized( const ompi_datatype_t* oldType,
Expand Down Expand Up @@ -296,25 +297,26 @@ ompi_datatype_copy_content_same_ddt( const ompi_datatype_t* type, size_t count,
return 0;
}

OMPI_DECLSPEC const ompi_datatype_t* ompi_datatype_match_size( int size, uint16_t datakind, uint16_t datalang );
OMPI_DECLSPEC const ompi_datatype_t* ompi_datatype_match_size( size_t size, uint16_t datakind, uint16_t datalang );

/*
*
*/
OMPI_DECLSPEC int32_t ompi_datatype_sndrcv( const void *sbuf, int32_t scount, const ompi_datatype_t* sdtype,
void *rbuf, int32_t rcount, const ompi_datatype_t* rdtype);
OMPI_DECLSPEC int32_t ompi_datatype_sndrcv( const void *sbuf, size_t scount, const ompi_datatype_t* sdtype,
void *rbuf, size_t rcount, const ompi_datatype_t* rdtype);

/*
*
*/
OMPI_DECLSPEC int32_t ompi_datatype_get_args( const ompi_datatype_t* pData, int32_t which,
int32_t * ci, int32_t * i,
int32_t * ca, ptrdiff_t* a,
int32_t * cd, ompi_datatype_t** d, int32_t * type);
size_t * ci, int* i,
size_t * cl, MPI_Count* l,
size_t * ca, ptrdiff_t* a,
size_t * cd, ompi_datatype_t** d, int32_t * type);
OMPI_DECLSPEC int32_t ompi_datatype_set_args( ompi_datatype_t* pData,
int32_t ci, const int32_t ** i,
int32_t ca, const ptrdiff_t* a,
int32_t cd, ompi_datatype_t* const * d,int32_t type);
size_t ci, size_t cl, const ompi_count_array_t *counts,
size_t ca, const ompi_disp_array_t a,
size_t cd, ompi_datatype_t* const * d,int32_t type);
OMPI_DECLSPEC int32_t ompi_datatype_copy_args( const ompi_datatype_t* source_data,
ompi_datatype_t* dest_data );
OMPI_DECLSPEC int32_t ompi_datatype_release_args( ompi_datatype_t* pData );
Expand Down
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