src/smpi/mpi/smpi_datatype_derived.cpp

   1 /* smpi_datatype.cpp -- MPI primitives to handle datatypes                  */
   2 /* Copyright (c) 2009-2019. The SimGrid Team. All rights reserved.          */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include "smpi_datatype_derived.hpp"
   8 #include "smpi_op.hpp"
   9 #include <xbt/log.h>
  10
  11 #include <cstring>
  12
  13 namespace simgrid{
  14 namespace smpi{
  15
  16 Type_Contiguous::Type_Contiguous(int size, MPI_Aint lb, MPI_Aint ub, int flags, int block_count, MPI_Datatype old_type)
  17     : Datatype(size, lb, ub, flags), block_count_(block_count), old_type_(old_type)
  18 {
  19   old_type_->ref();
  20 }
  21
  22 Type_Contiguous::~Type_Contiguous()
  23 {
  24   Datatype::unref(old_type_);
  25 }
  26
  27 void Type_Contiguous::serialize(void* noncontiguous_buf, void* contiguous_buf, int count)
  28 {
  29   char* contiguous_buf_char = static_cast<char*>(contiguous_buf);
  30   char* noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf)+lb();
  31   memcpy(contiguous_buf_char, noncontiguous_buf_char, count * block_count_ * old_type_->size());
  32 }
  33
  34 void Type_Contiguous::unserialize(void* contiguous_buf, void* noncontiguous_buf, int count, MPI_Op op)
  35 {
  36   char* contiguous_buf_char = static_cast<char*>(contiguous_buf);
  37   char* noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf)+lb();
  38   int n= count*block_count_;
  39   if(op!=MPI_OP_NULL)
  40     op->apply( contiguous_buf_char, noncontiguous_buf_char, &n, old_type_);
  41 }
  42
  43 Type_Hvector::Type_Hvector(int size,MPI_Aint lb, MPI_Aint ub, int flags, int count, int block_length, MPI_Aint stride, MPI_Datatype old_type): Datatype(size, lb, ub, flags), block_count_(count), block_length_(block_length), block_stride_(stride), old_type_(old_type){
  44   old_type->ref();
  45 }
  46 Type_Hvector::~Type_Hvector(){
  47   Datatype::unref(old_type_);
  48 }
  49
  50 void Type_Hvector::serialize( void* noncontiguous_buf, void *contiguous_buf,
  51                     int count){
  52   char* contiguous_buf_char = static_cast<char*>(contiguous_buf);
  53   char* noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf);
  54
  55   for (int i = 0; i < block_count_ * count; i++) {
  56     if (not(old_type_->flags() & DT_FLAG_DERIVED))
  57       memcpy(contiguous_buf_char, noncontiguous_buf_char, block_length_ * old_type_->size());
  58     else
  59       old_type_->serialize( noncontiguous_buf_char, contiguous_buf_char, block_length_);
  60
  61     contiguous_buf_char += block_length_*old_type_->size();
  62     if((i+1)%block_count_ ==0)
  63       noncontiguous_buf_char += block_length_*old_type_->size();
  64     else
  65       noncontiguous_buf_char += block_stride_;
  66   }
  67 }
  68
  69 void Type_Hvector::unserialize( void* contiguous_buf, void *noncontiguous_buf,
  70                               int count, MPI_Op op){
  71   char* contiguous_buf_char = static_cast<char*>(contiguous_buf);
  72   char* noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf);
  73
  74   for (int i = 0; i < block_count_ * count; i++) {
  75     if (not(old_type_->flags() & DT_FLAG_DERIVED)) {
  76       if(op!=MPI_OP_NULL)
  77         op->apply( contiguous_buf_char, noncontiguous_buf_char, &block_length_, old_type_);
  78     }else
  79       old_type_->unserialize( contiguous_buf_char, noncontiguous_buf_char, block_length_, op);
  80     contiguous_buf_char += block_length_*old_type_->size();
  81     if((i+1)%block_count_ ==0)
  82       noncontiguous_buf_char += block_length_*old_type_->size();
  83     else
  84       noncontiguous_buf_char += block_stride_;
  85   }
  86 }
  87
  88 Type_Vector::Type_Vector(int size, MPI_Aint lb, MPI_Aint ub, int flags, int count, int block_length, int stride,
  89                          MPI_Datatype old_type)
  90     : Type_Hvector(size, lb, ub, flags, count, block_length, stride * old_type->get_extent(), old_type)
  91 {
  92 }
  93
  94 Type_Hindexed::Type_Hindexed(int size, MPI_Aint lb, MPI_Aint ub, int flags, int count, int* block_lengths,
  95                              MPI_Aint* block_indices, MPI_Datatype old_type)
  96     : Datatype(size, lb, ub, flags), block_count_(count), old_type_(old_type)
  97 {
  98   old_type_->ref();
  99   block_lengths_ = new int[count];
 100   block_indices_ = new MPI_Aint[count];
 101   for (int i = 0; i < count; i++) {
 102     block_lengths_[i] = block_lengths[i];
 103     block_indices_[i] = block_indices[i];
 104   }
 105 }
 106
 107 Type_Hindexed::Type_Hindexed(int size, MPI_Aint lb, MPI_Aint ub, int flags, int count, int* block_lengths,
 108                              int* block_indices, MPI_Datatype old_type, MPI_Aint factor)
 109     : Datatype(size, lb, ub, flags), block_count_(count), old_type_(old_type)
 110 {
 111   old_type_->ref();
 112   block_lengths_ = new int[count];
 113   block_indices_ = new MPI_Aint[count];
 114   for (int i = 0; i < count; i++) {
 115     block_lengths_[i] = block_lengths[i];
 116     block_indices_[i] = block_indices[i] * factor;
 117   }
 118 }
 119
 120 Type_Hindexed::~Type_Hindexed()
 121 {
 122   Datatype::unref(old_type_);
 123   if(refcount()==0){
 124     delete[] block_lengths_;
 125     delete[] block_indices_;
 126   }
 127 }
 128
 129 void Type_Hindexed::serialize( void* noncontiguous_buf, void *contiguous_buf,
 130                 int count){
 131   char* contiguous_buf_char = static_cast<char*>(contiguous_buf);
 132   char* noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf)+ block_indices_[0];
 133   for (int j = 0; j < count; j++) {
 134     for (int i = 0; i < block_count_; i++) {
 135       if (not(old_type_->flags() & DT_FLAG_DERIVED))
 136         memcpy(contiguous_buf_char, noncontiguous_buf_char, block_lengths_[i] * old_type_->size());
 137       else
 138         old_type_->serialize(noncontiguous_buf_char, contiguous_buf_char,block_lengths_[i]);
 139
 140       contiguous_buf_char += block_lengths_[i]*old_type_->size();
 141       if (i<block_count_-1)
 142         noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf) + block_indices_[i+1];
 143       else
 144         noncontiguous_buf_char += block_lengths_[i]*old_type_->get_extent();
 145     }
 146     noncontiguous_buf=static_cast<void*>(noncontiguous_buf_char);
 147   }
 148 }
 149
 150 void Type_Hindexed::unserialize( void* contiguous_buf, void *noncontiguous_buf,
 151                           int count, MPI_Op op){
 152   char* contiguous_buf_char = static_cast<char*>(contiguous_buf);
 153   char* noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf)+ block_indices_[0];
 154   for (int j = 0; j < count; j++) {
 155     for (int i = 0; i < block_count_; i++) {
 156       if (not(old_type_->flags() & DT_FLAG_DERIVED)) {
 157         if(op!=MPI_OP_NULL)
 158           op->apply( contiguous_buf_char, noncontiguous_buf_char, &block_lengths_[i],
 159                             old_type_);
 160       }else
 161         old_type_->unserialize( contiguous_buf_char,noncontiguous_buf_char,block_lengths_[i], op);
 162
 163       contiguous_buf_char += block_lengths_[i]*old_type_->size();
 164       if (i<block_count_-1)
 165         noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf) + block_indices_[i+1];
 166       else
 167         noncontiguous_buf_char += block_lengths_[i]*old_type_->get_extent();
 168     }
 169     noncontiguous_buf=static_cast<void*>(noncontiguous_buf_char);
 170   }
 171 }
 172
 173 Type_Indexed::Type_Indexed(int size, MPI_Aint lb, MPI_Aint ub, int flags, int count, int* block_lengths,
 174                            int* block_indices, MPI_Datatype old_type)
 175     : Type_Hindexed(size, lb, ub, flags, count, block_lengths, block_indices, old_type, old_type->get_extent())
 176 {
 177 }
 178
 179 Type_Struct::Type_Struct(int size,MPI_Aint lb, MPI_Aint ub, int flags, int count, int* block_lengths, MPI_Aint* block_indices, MPI_Datatype* old_types): Datatype(size, lb, ub, flags), block_count_(count), block_lengths_(block_lengths), block_indices_(block_indices), old_types_(old_types){
 180   block_lengths_= new int[count];
 181   block_indices_= new MPI_Aint[count];
 182   old_types_=  new MPI_Datatype[count];
 183   for (int i = 0; i < count; i++) {
 184     block_lengths_[i]=block_lengths[i];
 185     block_indices_[i]=block_indices[i];
 186     old_types_[i]=old_types[i];
 187     old_types_[i]->ref();
 188   }
 189 }
 190
 191 Type_Struct::~Type_Struct(){
 192   for (int i = 0; i < block_count_; i++) {
 193     Datatype::unref(old_types_[i]);
 194   }
 195   if(refcount()==0){
 196     delete[] block_lengths_;
 197     delete[] block_indices_;
 198     delete[] old_types_;
 199   }
 200 }
 201
 202
 203 void Type_Struct::serialize( void* noncontiguous_buf, void *contiguous_buf,
 204                         int count){
 205   char* contiguous_buf_char = static_cast<char*>(contiguous_buf);
 206   char* noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf)+ block_indices_[0];
 207   for (int j = 0; j < count; j++) {
 208     for (int i = 0; i < block_count_; i++) {
 209       if (not(old_types_[i]->flags() & DT_FLAG_DERIVED))
 210         memcpy(contiguous_buf_char, noncontiguous_buf_char, block_lengths_[i] * old_types_[i]->size());
 211       else
 212         old_types_[i]->serialize( noncontiguous_buf_char,contiguous_buf_char,block_lengths_[i]);
 213
 214
 215       contiguous_buf_char += block_lengths_[i]*old_types_[i]->size();
 216       if (i<block_count_-1)
 217         noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf) + block_indices_[i+1];
 218       else //let's hope this is MPI_UB ?
 219         noncontiguous_buf_char += block_lengths_[i]*old_types_[i]->get_extent();
 220     }
 221     noncontiguous_buf=static_cast<void*>(noncontiguous_buf_char);
 222   }
 223 }
 224
 225 void Type_Struct::unserialize( void* contiguous_buf, void *noncontiguous_buf,
 226                               int count, MPI_Op op){
 227   char* contiguous_buf_char = static_cast<char*>(contiguous_buf);
 228   char* noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf)+ block_indices_[0];
 229   for (int j = 0; j < count; j++) {
 230     for (int i = 0; i < block_count_; i++) {
 231       if (not(old_types_[i]->flags() & DT_FLAG_DERIVED)) {
 232         if(op!=MPI_OP_NULL)
 233           op->apply( contiguous_buf_char, noncontiguous_buf_char, &block_lengths_[i], old_types_[i]);
 234       }else
 235         old_types_[i]->unserialize( contiguous_buf_char, noncontiguous_buf_char,block_lengths_[i], op);
 236
 237       contiguous_buf_char += block_lengths_[i]*old_types_[i]->size();
 238       if (i<block_count_-1)
 239         noncontiguous_buf_char =  static_cast<char*>(noncontiguous_buf) + block_indices_[i+1];
 240       else
 241         noncontiguous_buf_char += block_lengths_[i]*old_types_[i]->get_extent();
 242     }
 243     noncontiguous_buf=static_cast<void*>(noncontiguous_buf_char);
 244   }
 245 }
 246
 247 }
 248 }