1 /* smpi_mpi_dt_private.h -- functions of smpi_mpi_dt.c that are exported to other SMPI modules. */
3 /* Copyright (c) 2009, 2010. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
9 #ifndef SMPI_DT_PRIVATE_H
10 #define SMPI_DT_PRIVATE_H
14 #define DT_FLAG_DESTROYED 0x0001 /**< user destroyed but some other layers still have a reference */
15 #define DT_FLAG_COMMITED 0x0002 /**< ready to be used for a send/recv operation */
16 #define DT_FLAG_CONTIGUOUS 0x0004 /**< contiguous datatype */
17 #define DT_FLAG_OVERLAP 0x0008 /**< datatype is unpropper for a recv operation */
18 #define DT_FLAG_USER_LB 0x0010 /**< has a user defined LB */
19 #define DT_FLAG_USER_UB 0x0020 /**< has a user defined UB */
20 #define DT_FLAG_PREDEFINED 0x0040 /**< cannot be removed: initial and predefined datatypes */
21 #define DT_FLAG_NO_GAPS 0x0080 /**< no gaps around the datatype */
22 #define DT_FLAG_DATA 0x0100 /**< data or control structure */
23 #define DT_FLAG_ONE_SIDED 0x0200 /**< datatype can be used for one sided operations */
24 #define DT_FLAG_UNAVAILABLE 0x0400 /**< datatypes unavailable on the build (OS or compiler dependant) */
25 #define DT_FLAG_VECTOR 0x0800 /**< valid only for loops. The loop contain only one element
26 **< without extent. It correspond to the vector type. */
28 * We should make the difference here between the predefined contiguous and non contiguous
29 * datatypes. The DT_FLAG_BASIC is held by all predefined contiguous datatypes.
31 #define DT_FLAG_BASIC (DT_FLAG_PREDEFINED | DT_FLAG_CONTIGUOUS | DT_FLAG_NO_GAPS | DT_FLAG_DATA | DT_FLAG_COMMITED)
33 extern MPI_Datatype MPI_PTR;
36 //*****************************************************************************************
39 These are the structures that handle complex data type information,
40 used for serialization/unserialization of messages
43 typedef struct s_smpi_mpi_vector{
44 s_smpi_subtype_t base;
48 MPI_Datatype old_type;
50 } s_smpi_mpi_vector_t;
52 typedef struct s_smpi_mpi_hvector{
53 s_smpi_subtype_t base;
54 MPI_Aint block_stride;
57 MPI_Datatype old_type;
59 } s_smpi_mpi_hvector_t;
61 typedef struct s_smpi_mpi_indexed{
62 s_smpi_subtype_t base;
66 MPI_Datatype old_type;
68 } s_smpi_mpi_indexed_t;
70 typedef struct s_smpi_mpi_hindexed{
71 s_smpi_subtype_t base;
73 MPI_Aint* block_indices;
75 MPI_Datatype old_type;
77 } s_smpi_mpi_hindexed_t;
79 typedef struct s_smpi_mpi_struct{
80 s_smpi_subtype_t base;
82 MPI_Aint* block_indices;
84 MPI_Datatype* old_types;
85 } s_smpi_mpi_struct_t;
88 Functions to handle serialization/unserialization of messages, 3 for each type of MPI_Type
89 One for creating the substructure to handle, one for serialization, one for unserialization
92 void unserialize_vector( const void *contiguous_vector,
93 void *noncontiguous_vector,
97 void serialize_vector( const void *noncontiguous_vector,
98 void *contiguous_vector,
102 void free_vector(MPI_Datatype* type);
104 s_smpi_mpi_vector_t* smpi_datatype_vector_create( int block_stride,
107 MPI_Datatype old_type,
110 void unserialize_hvector( const void *contiguous_vector,
111 void *noncontiguous_vector,
115 void serialize_hvector( const void *noncontiguous_vector,
116 void *contiguous_vector,
120 void free_hvector(MPI_Datatype* type);
122 s_smpi_mpi_hvector_t* smpi_datatype_hvector_create( MPI_Aint block_stride,
125 MPI_Datatype old_type,
129 void unserialize_indexed( const void *contiguous_indexed,
130 void *noncontiguous_indexed,
134 void serialize_indexed( const void *noncontiguous_vector,
135 void *contiguous_vector,
139 void free_indexed(MPI_Datatype* type);
141 s_smpi_mpi_indexed_t* smpi_datatype_indexed_create(int* block_lengths,
144 MPI_Datatype old_type,
147 void unserialize_hindexed( const void *contiguous_indexed,
148 void *noncontiguous_indexed,
152 void serialize_hindexed( const void *noncontiguous_vector,
153 void *contiguous_vector,
157 void free_hindexed(MPI_Datatype* type);
159 s_smpi_mpi_hindexed_t* smpi_datatype_hindexed_create(int* block_lengths,
160 MPI_Aint* block_indices,
162 MPI_Datatype old_type,
165 void unserialize_struct( const void *contiguous_indexed,
166 void *noncontiguous_indexed,
170 void serialize_struct( const void *noncontiguous_vector,
171 void *contiguous_vector,
175 void free_struct(MPI_Datatype* type);
177 s_smpi_mpi_struct_t* smpi_datatype_struct_create(int* block_lengths,
178 MPI_Aint* block_indices,
180 MPI_Datatype* old_types);