+++ /dev/null
-/* smpi_datatype.cpp -- MPI primitives to handle datatypes */
-/* Copyright (c) 2009-2017. The SimGrid Team. All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include "simgrid/modelchecker.h"
-#include "src/smpi/private.h"
-#include "src/smpi/private.hpp"
-#include "src/smpi/smpi_datatype_derived.hpp"
-#include "src/smpi/smpi_op.hpp"
-#include "src/smpi/smpi_process.hpp"
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_datatype, smpi, "Logging specific to SMPI (datatype)");
-
-#define CREATE_MPI_DATATYPE(name, type) \
- static simgrid::smpi::Datatype mpi_##name ( \
- (char*) # name, \
- sizeof(type), /* size */ \
- 0, /* lb */ \
- sizeof(type), /* ub = lb + size */ \
- DT_FLAG_BASIC /* flags */ \
- ); \
-const MPI_Datatype name = &mpi_##name;
-
-#define CREATE_MPI_DATATYPE_NULL(name) \
- static simgrid::smpi::Datatype mpi_##name ( \
- (char*) # name, \
- 0, /* size */ \
- 0, /* lb */ \
- 0, /* ub = lb + size */ \
- DT_FLAG_BASIC /* flags */ \
- ); \
-const MPI_Datatype name = &mpi_##name;
-
-// Predefined data types
-CREATE_MPI_DATATYPE(MPI_CHAR, char);
-CREATE_MPI_DATATYPE(MPI_SHORT, short);
-CREATE_MPI_DATATYPE(MPI_INT, int);
-CREATE_MPI_DATATYPE(MPI_LONG, long);
-CREATE_MPI_DATATYPE(MPI_LONG_LONG, long long);
-CREATE_MPI_DATATYPE(MPI_SIGNED_CHAR, signed char);
-CREATE_MPI_DATATYPE(MPI_UNSIGNED_CHAR, unsigned char);
-CREATE_MPI_DATATYPE(MPI_UNSIGNED_SHORT, unsigned short);
-CREATE_MPI_DATATYPE(MPI_UNSIGNED, unsigned int);
-CREATE_MPI_DATATYPE(MPI_UNSIGNED_LONG, unsigned long);
-CREATE_MPI_DATATYPE(MPI_UNSIGNED_LONG_LONG, unsigned long long);
-CREATE_MPI_DATATYPE(MPI_FLOAT, float);
-CREATE_MPI_DATATYPE(MPI_DOUBLE, double);
-CREATE_MPI_DATATYPE(MPI_LONG_DOUBLE, long double);
-CREATE_MPI_DATATYPE(MPI_WCHAR, wchar_t);
-CREATE_MPI_DATATYPE(MPI_C_BOOL, bool);
-CREATE_MPI_DATATYPE(MPI_BYTE, int8_t);
-CREATE_MPI_DATATYPE(MPI_INT8_T, int8_t);
-CREATE_MPI_DATATYPE(MPI_INT16_T, int16_t);
-CREATE_MPI_DATATYPE(MPI_INT32_T, int32_t);
-CREATE_MPI_DATATYPE(MPI_INT64_T, int64_t);
-CREATE_MPI_DATATYPE(MPI_UINT8_T, uint8_t);
-CREATE_MPI_DATATYPE(MPI_UINT16_T, uint16_t);
-CREATE_MPI_DATATYPE(MPI_UINT32_T, uint32_t);
-CREATE_MPI_DATATYPE(MPI_UINT64_T, uint64_t);
-CREATE_MPI_DATATYPE(MPI_C_FLOAT_COMPLEX, float _Complex);
-CREATE_MPI_DATATYPE(MPI_C_DOUBLE_COMPLEX, double _Complex);
-CREATE_MPI_DATATYPE(MPI_C_LONG_DOUBLE_COMPLEX, long double _Complex);
-CREATE_MPI_DATATYPE(MPI_AINT, MPI_Aint);
-CREATE_MPI_DATATYPE(MPI_OFFSET, MPI_Offset);
-
-CREATE_MPI_DATATYPE(MPI_FLOAT_INT, float_int);
-CREATE_MPI_DATATYPE(MPI_LONG_INT, long_int);
-CREATE_MPI_DATATYPE(MPI_DOUBLE_INT, double_int);
-CREATE_MPI_DATATYPE(MPI_SHORT_INT, short_int);
-CREATE_MPI_DATATYPE(MPI_2INT, int_int);
-CREATE_MPI_DATATYPE(MPI_2FLOAT, float_float);
-CREATE_MPI_DATATYPE(MPI_2DOUBLE, double_double);
-CREATE_MPI_DATATYPE(MPI_2LONG, long_long);
-
-CREATE_MPI_DATATYPE(MPI_REAL, float);
-CREATE_MPI_DATATYPE(MPI_REAL4, float);
-CREATE_MPI_DATATYPE(MPI_REAL8, float);
-CREATE_MPI_DATATYPE(MPI_REAL16, double);
-CREATE_MPI_DATATYPE_NULL(MPI_COMPLEX8);
-CREATE_MPI_DATATYPE_NULL(MPI_COMPLEX16);
-CREATE_MPI_DATATYPE_NULL(MPI_COMPLEX32);
-CREATE_MPI_DATATYPE(MPI_INTEGER1, int);
-CREATE_MPI_DATATYPE(MPI_INTEGER2, int16_t);
-CREATE_MPI_DATATYPE(MPI_INTEGER4, int32_t);
-CREATE_MPI_DATATYPE(MPI_INTEGER8, int64_t);
-CREATE_MPI_DATATYPE(MPI_INTEGER16, integer128_t);
-
-CREATE_MPI_DATATYPE(MPI_LONG_DOUBLE_INT, long_double_int);
-
-CREATE_MPI_DATATYPE_NULL(MPI_UB);
-CREATE_MPI_DATATYPE_NULL(MPI_LB);
-CREATE_MPI_DATATYPE(MPI_PACKED, char);
-// Internal use only
-CREATE_MPI_DATATYPE(MPI_PTR, void*);
-
-namespace simgrid{
-namespace smpi{
-
-std::unordered_map<int, smpi_key_elem> Datatype::keyvals_;
-int Datatype::keyval_id_=0;
-
-Datatype::Datatype(int size,MPI_Aint lb, MPI_Aint ub, int flags) : name_(nullptr), size_(size), lb_(lb), ub_(ub), flags_(flags), refcount_(1){
-#if SIMGRID_HAVE_MC
- if(MC_is_active())
- MC_ignore(&(refcount_), sizeof(refcount_));
-#endif
-}
-
-//for predefined types, so in_use = 0.
-Datatype::Datatype(char* name, int size,MPI_Aint lb, MPI_Aint ub, int flags) : name_(name), size_(size), lb_(lb), ub_(ub), flags_(flags), refcount_(0){
-#if SIMGRID_HAVE_MC
- if(MC_is_active())
- MC_ignore(&(refcount_), sizeof(refcount_));
-#endif
-}
-
-Datatype::Datatype(Datatype *datatype, int* ret) : name_(nullptr), lb_(datatype->lb_), ub_(datatype->ub_), flags_(datatype->flags_), refcount_(1)
-{
- flags_ &= ~DT_FLAG_PREDEFINED;
- *ret = MPI_SUCCESS;
- if(datatype->name_)
- name_ = xbt_strdup(datatype->name_);
-
- if (not datatype->attributes()->empty()) {
- int flag;
- void* value_out;
- for(auto it = datatype->attributes()->begin(); it != datatype->attributes()->end(); it++){
- smpi_key_elem elem = keyvals_.at((*it).first);
-
- if (elem != nullptr && elem->copy_fn.type_copy_fn != MPI_NULL_COPY_FN) {
- *ret = elem->copy_fn.type_copy_fn(datatype, (*it).first, nullptr, (*it).second, &value_out, &flag);
- if (*ret != MPI_SUCCESS) {
- break;
- }
- if (flag){
- elem->refcount++;
- attributes()->insert({(*it).first, value_out});
- }
- }
- }
- }
-}
-
-Datatype::~Datatype(){
- xbt_assert(refcount_ >= 0);
-
- if(flags_ & DT_FLAG_PREDEFINED)
- return;
-
- //if still used, mark for deletion
- if(refcount_!=0){
- flags_ |=DT_FLAG_DESTROYED;
- return;
- }
-
- cleanup_attr<Datatype>();
-
- xbt_free(name_);
-}
-
-
-void Datatype::ref(){
-
- refcount_++;
-
-#if SIMGRID_HAVE_MC
- if(MC_is_active())
- MC_ignore(&(refcount_), sizeof(refcount_));
-#endif
-}
-
-void Datatype::unref(MPI_Datatype datatype)
-{
- if (datatype->refcount_ > 0)
- datatype->refcount_--;
-
- if (datatype->refcount_ == 0 && not(datatype->flags_ & DT_FLAG_PREDEFINED))
- delete datatype;
-
-#if SIMGRID_HAVE_MC
- if(MC_is_active())
- MC_ignore(&(datatype->refcount_), sizeof(datatype->refcount_));
-#endif
-}
-
-void Datatype::commit()
-{
- flags_ |= DT_FLAG_COMMITED;
-}
-
-
-bool Datatype::is_valid(){
- return (flags_ & DT_FLAG_COMMITED);
-}
-
-size_t Datatype::size(){
- return size_;
-}
-
-int Datatype::flags(){
- return flags_;
-}
-
-int Datatype::refcount(){
- return refcount_;
-}
-
-void Datatype::addflag(int flag){
- flags_ &= flag;
-}
-
-MPI_Aint Datatype::lb(){
- return lb_;
-}
-
-MPI_Aint Datatype::ub(){
- return ub_;
-}
-
-char* Datatype::name(){
- return name_;
-}
-
-
-int Datatype::extent(MPI_Aint * lb, MPI_Aint * extent){
- *lb = lb_;
- *extent = ub_ - lb_;
- return MPI_SUCCESS;
-}
-
-MPI_Aint Datatype::get_extent(){
- return ub_ - lb_;
-}
-
-void Datatype::get_name(char* name, int* length){
- *length = strlen(name_);
- strncpy(name, name_, *length+1);
-}
-
-void Datatype::set_name(char* name){
- if(name_!=nullptr && (flags_ & DT_FLAG_PREDEFINED) == 0)
- xbt_free(name_);
- name_ = xbt_strdup(name);
-}
-
-int Datatype::pack(void* inbuf, int incount, void* outbuf, int outcount, int* position,MPI_Comm comm){
- if (outcount - *position < incount*static_cast<int>(size_))
- return MPI_ERR_BUFFER;
- Datatype::copy(inbuf, incount, this, static_cast<char*>(outbuf) + *position, outcount, MPI_CHAR);
- *position += incount * size_;
- return MPI_SUCCESS;
-}
-
-int Datatype::unpack(void* inbuf, int insize, int* position, void* outbuf, int outcount,MPI_Comm comm){
- if (outcount*static_cast<int>(size_)> insize)
- return MPI_ERR_BUFFER;
- Datatype::copy(static_cast<char*>(inbuf) + *position, insize, MPI_CHAR, outbuf, outcount, this);
- *position += outcount * size_;
- return MPI_SUCCESS;
-}
-
-
-int Datatype::copy(void *sendbuf, int sendcount, MPI_Datatype sendtype,
- void *recvbuf, int recvcount, MPI_Datatype recvtype){
-
-// FIXME Handle the case of a partial shared malloc.
-
- if(smpi_privatize_global_variables == SMPI_PRIVATIZE_MMAP){
- smpi_switch_data_segment(smpi_process()->index());
- }
- /* First check if we really have something to do */
- if (recvcount > 0 && recvbuf != sendbuf) {
- sendcount *= sendtype->size();
- recvcount *= recvtype->size();
- int count = sendcount < recvcount ? sendcount : recvcount;
-
- if (not(sendtype->flags() & DT_FLAG_DERIVED) && not(recvtype->flags() & DT_FLAG_DERIVED)) {
- if (not smpi_process()->replaying())
- memcpy(recvbuf, sendbuf, count);
- } else if (not(sendtype->flags() & DT_FLAG_DERIVED)) {
- recvtype->unserialize( sendbuf, recvbuf, recvcount/recvtype->size(), MPI_REPLACE);
- } else if (not(recvtype->flags() & DT_FLAG_DERIVED)) {
- sendtype->serialize(sendbuf, recvbuf, sendcount/sendtype->size());
- }else{
-
- void * buf_tmp = xbt_malloc(count);
-
- sendtype->serialize( sendbuf, buf_tmp,count/sendtype->size());
- recvtype->unserialize( buf_tmp, recvbuf,count/recvtype->size(), MPI_REPLACE);
-
- xbt_free(buf_tmp);
- }
- }
-
- return sendcount > recvcount ? MPI_ERR_TRUNCATE : MPI_SUCCESS;
-}
-
-//Default serialization method : memcpy.
-void Datatype::serialize( void* noncontiguous_buf, void *contiguous_buf, int count){
- char* contiguous_buf_char = static_cast<char*>(contiguous_buf);
- char* noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf)+lb_;
- memcpy(contiguous_buf_char, noncontiguous_buf_char, count*size_);
-
-}
-
-void Datatype::unserialize( void* contiguous_buf, void *noncontiguous_buf, int count, MPI_Op op){
- char* contiguous_buf_char = static_cast<char*>(contiguous_buf);
- char* noncontiguous_buf_char = static_cast<char*>(noncontiguous_buf)+lb_;
- int n=count;
- if(op!=MPI_OP_NULL)
- op->apply( contiguous_buf_char, noncontiguous_buf_char, &n, this);
-}
-
-int Datatype::create_contiguous(int count, MPI_Datatype old_type, MPI_Aint lb, MPI_Datatype* new_type){
- if(old_type->flags_ & DT_FLAG_DERIVED){
- //handle this case as a hvector with stride equals to the extent of the datatype
- return create_hvector(count, 1, old_type->get_extent(), old_type, new_type);
- }
- if(count>0)
- *new_type = new Type_Contiguous(count * old_type->size(), lb, lb + count * old_type->size(),
- DT_FLAG_DERIVED, count, old_type);
- else
- *new_type = new Datatype(count * old_type->size(), lb, lb + count * old_type->size(),0);
- return MPI_SUCCESS;
-}
-
-int Datatype::create_vector(int count, int block_length, int stride, MPI_Datatype old_type, MPI_Datatype* new_type)
-{
- int retval;
- if (block_length<0)
- return MPI_ERR_ARG;
- MPI_Aint lb = 0;
- MPI_Aint ub = 0;
- if(count>0){
- lb=old_type->lb();
- ub=((count-1)*stride+block_length-1)*old_type->get_extent()+old_type->ub();
- }
- if(old_type->flags() & DT_FLAG_DERIVED || stride != block_length){
- *new_type = new Type_Vector(count * (block_length) * old_type->size(), lb, ub,
- DT_FLAG_DERIVED, count, block_length, stride, old_type);
- retval=MPI_SUCCESS;
- }else{
- /* in this situation the data are contiguous thus it's not required to serialize and unserialize it*/
- *new_type = new Datatype(count * block_length * old_type->size(), 0, ((count -1) * stride + block_length)*
- old_type->size(), DT_FLAG_CONTIGUOUS);
- retval=MPI_SUCCESS;
- }
- return retval;
-}
-
-
-int Datatype::create_hvector(int count, int block_length, MPI_Aint stride, MPI_Datatype old_type, MPI_Datatype* new_type)
-{
- int retval;
- if (block_length<0)
- return MPI_ERR_ARG;
- MPI_Aint lb = 0;
- MPI_Aint ub = 0;
- if(count>0){
- lb=old_type->lb();
- ub=((count-1)*stride)+(block_length-1)*old_type->get_extent()+old_type->ub();
- }
- if(old_type->flags() & DT_FLAG_DERIVED || stride != block_length*old_type->get_extent()){
- *new_type = new Type_Hvector(count * (block_length) * old_type->size(), lb, ub,
- DT_FLAG_DERIVED, count, block_length, stride, old_type);
- retval=MPI_SUCCESS;
- }else{
- /* in this situation the data are contiguous thus it's not required to serialize and unserialize it*/
- *new_type = new Datatype(count * block_length * old_type->size(), 0, count * block_length * old_type->size(), DT_FLAG_CONTIGUOUS);
- retval=MPI_SUCCESS;
- }
- return retval;
-}
-
-int Datatype::create_indexed(int count, int* block_lengths, int* indices, MPI_Datatype old_type, MPI_Datatype* new_type){
- int size = 0;
- bool contiguous=true;
- MPI_Aint lb = 0;
- MPI_Aint ub = 0;
- if(count>0){
- lb=indices[0]*old_type->get_extent();
- ub=indices[0]*old_type->get_extent() + block_lengths[0]*old_type->ub();
- }
-
- for (int i = 0; i < count; i++) {
- if (block_lengths[i] < 0)
- return MPI_ERR_ARG;
- size += block_lengths[i];
-
- if(indices[i]*old_type->get_extent()+old_type->lb()<lb)
- lb = indices[i]*old_type->get_extent()+old_type->lb();
- if(indices[i]*old_type->get_extent()+block_lengths[i]*old_type->ub()>ub)
- ub = indices[i]*old_type->get_extent()+block_lengths[i]*old_type->ub();
-
- if ( (i< count -1) && (indices[i]+block_lengths[i] != indices[i+1]) )
- contiguous=false;
- }
- if(old_type->flags_ & DT_FLAG_DERIVED)
- contiguous=false;
-
- if (not contiguous) {
- *new_type = new Type_Indexed(size * old_type->size(),lb,ub,
- DT_FLAG_DERIVED|DT_FLAG_DATA, count, block_lengths, indices, old_type);
- }else{
- Datatype::create_contiguous(size, old_type, lb, new_type);
- }
- return MPI_SUCCESS;
-}
-
-int Datatype::create_hindexed(int count, int* block_lengths, MPI_Aint* indices, MPI_Datatype old_type, MPI_Datatype* new_type){
- int size = 0;
- bool contiguous=true;
- MPI_Aint lb = 0;
- MPI_Aint ub = 0;
- if(count>0){
- lb=indices[0] + old_type->lb();
- ub=indices[0] + block_lengths[0]*old_type->ub();
- }
- for (int i = 0; i < count; i++) {
- if (block_lengths[i] < 0)
- return MPI_ERR_ARG;
- size += block_lengths[i];
-
- if(indices[i]+old_type->lb()<lb)
- lb = indices[i]+old_type->lb();
- if(indices[i]+block_lengths[i]*old_type->ub()>ub)
- ub = indices[i]+block_lengths[i]*old_type->ub();
-
- if ( (i< count -1) && (indices[i]+block_lengths[i]*(static_cast<int>(old_type->size())) != indices[i+1]) )
- contiguous=false;
- }
- if (old_type->flags_ & DT_FLAG_DERIVED || lb!=0)
- contiguous=false;
-
- if (not contiguous) {
- *new_type = new Type_Hindexed(size * old_type->size(),lb,ub,
- DT_FLAG_DERIVED|DT_FLAG_DATA, count, block_lengths, indices, old_type);
- }else{
- Datatype::create_contiguous(size, old_type, lb, new_type);
- }
- return MPI_SUCCESS;
-}
-
-int Datatype::create_struct(int count, int* block_lengths, MPI_Aint* indices, MPI_Datatype* old_types, MPI_Datatype* new_type){
- size_t size = 0;
- bool contiguous=true;
- size = 0;
- MPI_Aint lb = 0;
- MPI_Aint ub = 0;
- if(count>0){
- lb=indices[0] + old_types[0]->lb();
- ub=indices[0] + block_lengths[0]*old_types[0]->ub();
- }
- bool forced_lb=false;
- bool forced_ub=false;
- for (int i = 0; i < count; i++) {
- if (block_lengths[i]<0)
- return MPI_ERR_ARG;
- if (old_types[i]->flags_ & DT_FLAG_DERIVED)
- contiguous=false;
-
- size += block_lengths[i]*old_types[i]->size();
- if (old_types[i]==MPI_LB){
- lb=indices[i];
- forced_lb=true;
- }
- if (old_types[i]==MPI_UB){
- ub=indices[i];
- forced_ub=true;
- }
-
- if (not forced_lb && indices[i] + old_types[i]->lb() < lb)
- lb = indices[i];
- if (not forced_ub && indices[i] + block_lengths[i] * old_types[i]->ub() > ub)
- ub = indices[i]+block_lengths[i]*old_types[i]->ub();
-
- if ( (i< count -1) && (indices[i]+block_lengths[i]*static_cast<int>(old_types[i]->size()) != indices[i+1]) )
- contiguous=false;
- }
- if (not contiguous) {
- *new_type = new Type_Struct(size, lb,ub, DT_FLAG_DERIVED|DT_FLAG_DATA,
- count, block_lengths, indices, old_types);
- }else{
- Datatype::create_contiguous(size, MPI_CHAR, lb, new_type);
- }
- return MPI_SUCCESS;
-}
-
-Datatype* Datatype::f2c(int id){
- return static_cast<Datatype*>(F2C::f2c(id));
-}
-
-
-}
-}
-
