1 /* smpi_datatype.cpp -- MPI primitives to handle datatypes */
2 /* Copyright (c) 2009-2018. The SimGrid Team. All rights reserved. */
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. */
8 #include "simgrid/modelchecker.h"
9 #include "smpi_datatype_derived.hpp"
10 #include "smpi_op.hpp"
11 #include "src/smpi/include/smpi_actor.hpp"
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_datatype, smpi, "Logging specific to SMPI (datatype)");
17 static std::unordered_map<std::string, simgrid::smpi::Datatype*> id2type_lookup;
19 #define CREATE_MPI_DATATYPE(name, id, type) \
20 static simgrid::smpi::Datatype mpi_##name((char*)#name, id, sizeof(type), /* size */ \
22 sizeof(type), /* ub = lb + size */ \
23 DT_FLAG_BASIC /* flags */ \
25 const MPI_Datatype name = &mpi_##name;
27 #define CREATE_MPI_DATATYPE_NULL(name, id) \
28 static simgrid::smpi::Datatype mpi_##name((char*)#name, id, 0, /* size */ \
30 0, /* ub = lb + size */ \
31 DT_FLAG_BASIC /* flags */ \
33 const MPI_Datatype name = &mpi_##name;
35 // Predefined data types
36 CREATE_MPI_DATATYPE(MPI_CHAR, 2, char);
37 CREATE_MPI_DATATYPE(MPI_SHORT, 3, short);
38 CREATE_MPI_DATATYPE(MPI_INT, 1, int);
39 CREATE_MPI_DATATYPE(MPI_LONG, 4, long);
40 CREATE_MPI_DATATYPE(MPI_LONG_LONG, 7, long long);
41 CREATE_MPI_DATATYPE(MPI_SIGNED_CHAR, 8, signed char);
42 CREATE_MPI_DATATYPE(MPI_UNSIGNED_CHAR, 9, unsigned char);
43 CREATE_MPI_DATATYPE(MPI_UNSIGNED_SHORT, 10, unsigned short);
44 CREATE_MPI_DATATYPE(MPI_UNSIGNED, 11, unsigned int);
45 CREATE_MPI_DATATYPE(MPI_UNSIGNED_LONG, 12, unsigned long);
46 CREATE_MPI_DATATYPE(MPI_UNSIGNED_LONG_LONG, 13, unsigned long long);
47 CREATE_MPI_DATATYPE(MPI_FLOAT, 5, float);
48 CREATE_MPI_DATATYPE(MPI_DOUBLE, 0, double);
49 CREATE_MPI_DATATYPE(MPI_LONG_DOUBLE, 14, long double);
50 CREATE_MPI_DATATYPE(MPI_WCHAR, 15, wchar_t);
51 CREATE_MPI_DATATYPE(MPI_C_BOOL, 16, bool);
52 CREATE_MPI_DATATYPE(MPI_BYTE, 6, int8_t);
53 CREATE_MPI_DATATYPE(MPI_INT8_T, 17, int8_t);
54 CREATE_MPI_DATATYPE(MPI_INT16_T, 18, int16_t);
55 CREATE_MPI_DATATYPE(MPI_INT32_T, 19, int32_t);
56 CREATE_MPI_DATATYPE(MPI_INT64_T, 20, int64_t);
57 CREATE_MPI_DATATYPE(MPI_UINT8_T, 21, uint8_t);
58 CREATE_MPI_DATATYPE(MPI_UINT16_T, 22, uint16_t);
59 CREATE_MPI_DATATYPE(MPI_UINT32_T, 23, uint32_t);
60 CREATE_MPI_DATATYPE(MPI_UINT64_T, 24, uint64_t);
61 CREATE_MPI_DATATYPE(MPI_C_FLOAT_COMPLEX, 25, float _Complex);
62 CREATE_MPI_DATATYPE(MPI_C_DOUBLE_COMPLEX, 26, double _Complex);
63 CREATE_MPI_DATATYPE(MPI_C_LONG_DOUBLE_COMPLEX, 27, long double _Complex);
64 CREATE_MPI_DATATYPE(MPI_AINT, 28, MPI_Aint);
65 CREATE_MPI_DATATYPE(MPI_OFFSET, 29, MPI_Offset);
67 CREATE_MPI_DATATYPE(MPI_FLOAT_INT, 30, float_int);
68 CREATE_MPI_DATATYPE(MPI_LONG_INT, 31, long_int);
69 CREATE_MPI_DATATYPE(MPI_DOUBLE_INT, 32, double_int);
70 CREATE_MPI_DATATYPE(MPI_SHORT_INT, 33, short_int);
71 CREATE_MPI_DATATYPE(MPI_2INT, 34, int_int);
72 CREATE_MPI_DATATYPE(MPI_2FLOAT, 35, float_float);
73 CREATE_MPI_DATATYPE(MPI_2DOUBLE, 36, double_double);
74 CREATE_MPI_DATATYPE(MPI_2LONG, 37, long_long);
76 CREATE_MPI_DATATYPE(MPI_REAL, 38, float);
77 CREATE_MPI_DATATYPE(MPI_REAL4, 39, float);
78 CREATE_MPI_DATATYPE(MPI_REAL8, 40, double);
79 CREATE_MPI_DATATYPE(MPI_REAL16, 41, long double);
80 CREATE_MPI_DATATYPE_NULL(MPI_DATATYPE_NULL, -1);
81 CREATE_MPI_DATATYPE_NULL(MPI_COMPLEX8, 42);
82 CREATE_MPI_DATATYPE_NULL(MPI_COMPLEX16, 43);
83 CREATE_MPI_DATATYPE_NULL(MPI_COMPLEX32, 44);
84 CREATE_MPI_DATATYPE(MPI_INTEGER1, 45, int);
85 CREATE_MPI_DATATYPE(MPI_INTEGER2, 46, int16_t);
86 CREATE_MPI_DATATYPE(MPI_INTEGER4, 47, int32_t);
87 CREATE_MPI_DATATYPE(MPI_INTEGER8, 48, int64_t);
88 CREATE_MPI_DATATYPE(MPI_INTEGER16, 49, integer128_t);
90 CREATE_MPI_DATATYPE(MPI_LONG_DOUBLE_INT, 50, long_double_int);
92 CREATE_MPI_DATATYPE_NULL(MPI_UB, 51);
93 CREATE_MPI_DATATYPE_NULL(MPI_LB, 52);
94 CREATE_MPI_DATATYPE(MPI_PACKED, 53, char);
96 CREATE_MPI_DATATYPE(MPI_PTR, 54, void*);
101 std::unordered_map<int, smpi_key_elem> Datatype::keyvals_; // required by the Keyval class implementation
102 int Datatype::keyval_id_=0; // required by the Keyval class implementation
103 Datatype::Datatype(int ident, int size, MPI_Aint lb, MPI_Aint ub, int flags) : Datatype(size, lb, ub, flags)
105 id = std::to_string(ident);
107 Datatype::Datatype(int size,MPI_Aint lb, MPI_Aint ub, int flags) : name_(nullptr), size_(size), lb_(lb), ub_(ub), flags_(flags), refcount_(1){
110 MC_ignore(&(refcount_), sizeof(refcount_));
114 //for predefined types, so in_use = 0.
115 Datatype::Datatype(char* name, int ident, int size, MPI_Aint lb, MPI_Aint ub, int flags)
116 : name_(name), id(std::to_string(ident)), size_(size), lb_(lb), ub_(ub), flags_(flags), refcount_(0)
118 id2type_lookup.insert({id, this});
121 MC_ignore(&(refcount_), sizeof(refcount_));
125 Datatype::Datatype(Datatype *datatype, int* ret) : name_(nullptr), lb_(datatype->lb_), ub_(datatype->ub_), flags_(datatype->flags_), refcount_(1)
127 flags_ &= ~DT_FLAG_PREDEFINED;
130 name_ = xbt_strdup(datatype->name_);
132 if (not datatype->attributes()->empty()) {
135 for (auto const& it : *(datatype->attributes())) {
136 smpi_key_elem elem = keyvals_.at(it.first);
137 if (elem != nullptr){
138 if( elem->copy_fn.type_copy_fn != MPI_NULL_COPY_FN &&
139 elem->copy_fn.type_copy_fn != MPI_TYPE_DUP_FN)
140 *ret = elem->copy_fn.type_copy_fn(datatype, it.first, elem->extra_state, it.second, &value_out, &flag);
141 else if ( elem->copy_fn.type_copy_fn_fort != MPI_NULL_COPY_FN &&
142 (*(int*)*elem->copy_fn.type_copy_fn_fort) != 1){
143 value_out=(int*)xbt_malloc(sizeof(int));
144 elem->copy_fn.type_copy_fn_fort(datatype, it.first, elem->extra_state, it.second, value_out, &flag,ret);
146 if (*ret != MPI_SUCCESS) {
149 if(elem->copy_fn.type_copy_fn == MPI_TYPE_DUP_FN ||
150 ((elem->copy_fn.type_copy_fn_fort != MPI_NULL_COPY_FN) && (*(int*)*elem->copy_fn.type_copy_fn_fort == 1))){
152 attributes()->insert({it.first, it.second});
155 attributes()->insert({it.first, value_out});
162 Datatype::~Datatype(){
163 xbt_assert(refcount_ >= 0);
165 if(flags_ & DT_FLAG_PREDEFINED)
168 //if still used, mark for deletion
170 flags_ |=DT_FLAG_DESTROYED;
174 cleanup_attr<Datatype>();
180 void Datatype::ref(){
186 MC_ignore(&(refcount_), sizeof(refcount_));
190 void Datatype::unref(MPI_Datatype datatype)
192 if (datatype->refcount_ > 0)
193 datatype->refcount_--;
195 if (datatype->refcount_ == 0 && not(datatype->flags_ & DT_FLAG_PREDEFINED))
200 MC_ignore(&(datatype->refcount_), sizeof(datatype->refcount_));
204 void Datatype::commit()
206 flags_ |= DT_FLAG_COMMITED;
209 bool Datatype::is_valid(){
210 return (flags_ & DT_FLAG_COMMITED);
213 bool Datatype::is_basic()
215 return (flags_ & DT_FLAG_BASIC);
218 const char* Datatype::encode(MPI_Datatype dt)
220 return dt->id.c_str();
223 MPI_Datatype Datatype::decode(std::string datatype_id)
225 return id2type_lookup.find(datatype_id)->second;
228 bool Datatype::is_replayable()
230 return ((this==MPI_BYTE)||(this==MPI_DOUBLE)||(this==MPI_INT)||
231 (this==MPI_CHAR)||(this==MPI_SHORT)||(this==MPI_LONG)||(this==MPI_FLOAT));
234 size_t Datatype::size(){
238 int Datatype::flags(){
242 int Datatype::refcount(){
246 void Datatype::addflag(int flag){
250 MPI_Aint Datatype::lb(){
254 MPI_Aint Datatype::ub(){
258 char* Datatype::name(){
263 int Datatype::extent(MPI_Aint * lb, MPI_Aint * extent){
269 MPI_Aint Datatype::get_extent(){
273 void Datatype::get_name(char* name, int* length){
274 *length = strlen(name_);
275 strncpy(name, name_, *length+1);
278 void Datatype::set_name(char* name){
279 if(name_!=nullptr && (flags_ & DT_FLAG_PREDEFINED) == 0)
281 name_ = xbt_strdup(name);
284 int Datatype::pack(void* inbuf, int incount, void* outbuf, int outcount, int* position,MPI_Comm comm){
285 if (outcount - *position < incount*static_cast<int>(size_))
286 return MPI_ERR_BUFFER;
287 Datatype::copy(inbuf, incount, this, static_cast<char*>(outbuf) + *position, outcount, MPI_CHAR);
288 *position += incount * size_;
292 int Datatype::unpack(void* inbuf, int insize, int* position, void* outbuf, int outcount,MPI_Comm comm){
293 if (outcount*static_cast<int>(size_)> insize)
294 return MPI_ERR_BUFFER;
295 Datatype::copy(static_cast<char*>(inbuf) + *position, insize, MPI_CHAR, outbuf, outcount, this);
296 *position += outcount * size_;
301 int Datatype::copy(void *sendbuf, int sendcount, MPI_Datatype sendtype,
302 void *recvbuf, int recvcount, MPI_Datatype recvtype){
304 // FIXME Handle the case of a partial shared malloc.
306 if (smpi_privatize_global_variables == SmpiPrivStrategies::MMAP) {
307 smpi_switch_data_segment(simgrid::s4u::Actor::self());
309 /* First check if we really have something to do */
310 if (recvcount > 0 && recvbuf != sendbuf) {
311 sendcount *= sendtype->size();
312 recvcount *= recvtype->size();
313 int count = sendcount < recvcount ? sendcount : recvcount;
315 if (not(sendtype->flags() & DT_FLAG_DERIVED) && not(recvtype->flags() & DT_FLAG_DERIVED)) {
316 if (not smpi_process()->replaying())
317 memcpy(recvbuf, sendbuf, count);
318 } else if (not(sendtype->flags() & DT_FLAG_DERIVED)) {
319 recvtype->unserialize(sendbuf, recvbuf, count / recvtype->size(), MPI_REPLACE);
320 } else if (not(recvtype->flags() & DT_FLAG_DERIVED)) {
321 sendtype->serialize(sendbuf, recvbuf, count / sendtype->size());
324 void * buf_tmp = xbt_malloc(count);
326 sendtype->serialize( sendbuf, buf_tmp,count/sendtype->size());
327 recvtype->unserialize( buf_tmp, recvbuf,count/recvtype->size(), MPI_REPLACE);
333 return sendcount > recvcount ? MPI_ERR_TRUNCATE : MPI_SUCCESS;
336 //Default serialization method : memcpy.
337 void Datatype::serialize( void* noncontiguous_buf, void *contiguous_buf, int count){
338 char* contiguous_buf_char = static_cast<char*>(contiguous_buf);
339 char* noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf)+lb_;
340 memcpy(contiguous_buf_char, noncontiguous_buf_char, count*size_);
344 void Datatype::unserialize( void* contiguous_buf, void *noncontiguous_buf, int count, MPI_Op op){
345 char* contiguous_buf_char = static_cast<char*>(contiguous_buf);
346 char* noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf)+lb_;
349 op->apply( contiguous_buf_char, noncontiguous_buf_char, &n, this);
352 int Datatype::create_contiguous(int count, MPI_Datatype old_type, MPI_Aint lb, MPI_Datatype* new_type){
353 if(old_type->flags_ & DT_FLAG_DERIVED){
354 //handle this case as a hvector with stride equals to the extent of the datatype
355 return create_hvector(count, 1, old_type->get_extent(), old_type, new_type);
358 *new_type = new Type_Contiguous(count * old_type->size(), lb, lb + count * old_type->size(),
359 DT_FLAG_DERIVED, count, old_type);
361 *new_type = new Datatype(count * old_type->size(), lb, lb + count * old_type->size(),0);
365 int Datatype::create_vector(int count, int block_length, int stride, MPI_Datatype old_type, MPI_Datatype* new_type)
374 ub=((count-1)*stride+block_length-1)*old_type->get_extent()+old_type->ub();
376 if(old_type->flags() & DT_FLAG_DERIVED || stride != block_length){
377 *new_type = new Type_Vector(count * (block_length) * old_type->size(), lb, ub,
378 DT_FLAG_DERIVED, count, block_length, stride, old_type);
381 /* in this situation the data are contiguous thus it's not required to serialize and unserialize it*/
382 *new_type = new Datatype(count * block_length * old_type->size(), 0, ((count -1) * stride + block_length)*
383 old_type->size(), DT_FLAG_CONTIGUOUS);
390 int Datatype::create_hvector(int count, int block_length, MPI_Aint stride, MPI_Datatype old_type, MPI_Datatype* new_type)
399 ub=((count-1)*stride)+(block_length-1)*old_type->get_extent()+old_type->ub();
401 if(old_type->flags() & DT_FLAG_DERIVED || stride != block_length*old_type->get_extent()){
402 *new_type = new Type_Hvector(count * (block_length) * old_type->size(), lb, ub,
403 DT_FLAG_DERIVED, count, block_length, stride, old_type);
406 /* in this situation the data are contiguous thus it's not required to serialize and unserialize it*/
407 *new_type = new Datatype(count * block_length * old_type->size(), 0, count * block_length * old_type->size(), DT_FLAG_CONTIGUOUS);
413 int Datatype::create_indexed(int count, int* block_lengths, int* indices, MPI_Datatype old_type, MPI_Datatype* new_type){
415 bool contiguous=true;
419 lb=indices[0]*old_type->get_extent();
420 ub=indices[0]*old_type->get_extent() + block_lengths[0]*old_type->ub();
423 for (int i = 0; i < count; i++) {
424 if (block_lengths[i] < 0)
426 size += block_lengths[i];
428 if(indices[i]*old_type->get_extent()+old_type->lb()<lb)
429 lb = indices[i]*old_type->get_extent()+old_type->lb();
430 if(indices[i]*old_type->get_extent()+block_lengths[i]*old_type->ub()>ub)
431 ub = indices[i]*old_type->get_extent()+block_lengths[i]*old_type->ub();
433 if ( (i< count -1) && (indices[i]+block_lengths[i] != indices[i+1]) )
436 if(old_type->flags_ & DT_FLAG_DERIVED)
439 if (not contiguous) {
440 *new_type = new Type_Indexed(size * old_type->size(),lb,ub,
441 DT_FLAG_DERIVED|DT_FLAG_DATA, count, block_lengths, indices, old_type);
443 Datatype::create_contiguous(size, old_type, lb, new_type);
448 int Datatype::create_hindexed(int count, int* block_lengths, MPI_Aint* indices, MPI_Datatype old_type, MPI_Datatype* new_type){
450 bool contiguous=true;
454 lb=indices[0] + old_type->lb();
455 ub=indices[0] + block_lengths[0]*old_type->ub();
457 for (int i = 0; i < count; i++) {
458 if (block_lengths[i] < 0)
460 size += block_lengths[i];
462 if(indices[i]+old_type->lb()<lb)
463 lb = indices[i]+old_type->lb();
464 if(indices[i]+block_lengths[i]*old_type->ub()>ub)
465 ub = indices[i]+block_lengths[i]*old_type->ub();
467 if ( (i< count -1) && (indices[i]+block_lengths[i]*(static_cast<int>(old_type->size())) != indices[i+1]) )
470 if (old_type->flags_ & DT_FLAG_DERIVED || lb!=0)
473 if (not contiguous) {
474 *new_type = new Type_Hindexed(size * old_type->size(),lb,ub,
475 DT_FLAG_DERIVED|DT_FLAG_DATA, count, block_lengths, indices, old_type);
477 Datatype::create_contiguous(size, old_type, lb, new_type);
482 int Datatype::create_struct(int count, int* block_lengths, MPI_Aint* indices, MPI_Datatype* old_types, MPI_Datatype* new_type){
484 bool contiguous=true;
489 lb=indices[0] + old_types[0]->lb();
490 ub=indices[0] + block_lengths[0]*old_types[0]->ub();
492 bool forced_lb=false;
493 bool forced_ub=false;
494 for (int i = 0; i < count; i++) {
495 if (block_lengths[i]<0)
497 if (old_types[i]->flags_ & DT_FLAG_DERIVED)
500 size += block_lengths[i]*old_types[i]->size();
501 if (old_types[i]==MPI_LB){
505 if (old_types[i]==MPI_UB){
510 if (not forced_lb && indices[i] + old_types[i]->lb() < lb)
512 if (not forced_ub && indices[i] + block_lengths[i] * old_types[i]->ub() > ub)
513 ub = indices[i]+block_lengths[i]*old_types[i]->ub();
515 if ( (i< count -1) && (indices[i]+block_lengths[i]*static_cast<int>(old_types[i]->size()) != indices[i+1]) )
518 if (not contiguous) {
519 *new_type = new Type_Struct(size, lb,ub, DT_FLAG_DERIVED|DT_FLAG_DATA,
520 count, block_lengths, indices, old_types);
522 Datatype::create_contiguous(size, MPI_CHAR, lb, new_type);
527 int Datatype::create_subarray(int ndims, int* array_of_sizes,
528 int* array_of_subsizes, int* array_of_starts,
529 int order, MPI_Datatype oldtype, MPI_Datatype *newtype){
532 for (int i = 0; i < ndims; i++) {
533 if (array_of_subsizes[i] > array_of_sizes[i]){
534 XBT_WARN("subarray : array_of_subsizes > array_of_sizes for dim %d",i);
537 if (array_of_starts[i] + array_of_subsizes[i] > array_of_sizes[i]){
538 XBT_WARN("subarray : array_of_starts + array_of_subsizes > array_of_sizes for dim %d",i);
543 MPI_Aint extent = oldtype->get_extent();
548 if( order==MPI_ORDER_C ) {
558 MPI_Aint size = (MPI_Aint)array_of_sizes[i] * (MPI_Aint)array_of_sizes[i+step];
559 MPI_Aint lb = (MPI_Aint)array_of_starts[i] + (MPI_Aint)array_of_starts[i+step] *(MPI_Aint)array_of_sizes[i];
561 create_vector( array_of_subsizes[i+step], array_of_subsizes[i], array_of_sizes[i],
566 for( i += 2 * step; i != end; i += step ) {
567 create_hvector( array_of_subsizes[i], 1, size * extent,
570 lb += size * array_of_starts[i];
571 size *= array_of_sizes[i];
575 MPI_Aint lbs[1] = {lb * extent};
577 //handle LB and UB with a resized call
578 create_hindexed( 1, sizes, lbs, tmp, newtype);
582 create_resized(tmp, 0, extent, newtype);
588 int Datatype::create_resized(MPI_Datatype oldtype,MPI_Aint lb, MPI_Aint extent, MPI_Datatype *newtype){
589 int blocks[3] = {1, 1, 1};
590 MPI_Aint disps[3] = {lb, 0, lb + extent};
591 MPI_Datatype types[3] = {MPI_LB, oldtype, MPI_UB};
593 *newtype = new simgrid::smpi::Type_Struct(oldtype->size(), lb, lb + extent, DT_FLAG_DERIVED, 3, blocks, disps, types);
595 (*newtype)->addflag(~DT_FLAG_COMMITED);
599 Datatype* Datatype::f2c(int id){
600 return static_cast<Datatype*>(F2C::f2c(id));