-/* Copyright (c) 2007-2020. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2023. 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/s4u/Host.hpp"
#include "simgrid/plugins/file_system.h"
+#include <mutex> // std::scoped_lock
+
#define FP_SIZE sizeof(MPI_Offset)
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_io, smpi, "Logging specific to SMPI (RMA operations)");
-MPI_Errhandler SMPI_default_File_Errhandler = MPI_ERRORS_RETURN;
-
-namespace simgrid{
-namespace smpi{
-
- File::File(MPI_Comm comm, const char *filename, int amode, MPI_Info info): comm_(comm), flags_(amode), info_(info) {
- if (info_ != MPI_INFO_NULL)
- info_->ref();
- std::string fullname=filename;
- if (simgrid::s4u::Host::current()->get_disks().empty())
- xbt_die("SMPI/IO : Trying to open file on a diskless host ! Add one to your platform file");
-
- size_t found=fullname.find('/');
- //in case no fullpath is provided ... just pick the first mountpoint.
- if(found==std::string::npos){
- auto disk = simgrid::s4u::Host::current()->get_disks().front();
- std::string mount;
- if (disk->get_host() != simgrid::s4u::Host::current())
- mount = disk->extension<simgrid::s4u::FileSystemDiskExt>()->get_mount_point(disk->get_host());
- else
- mount = disk->extension<simgrid::s4u::FileSystemDiskExt>()->get_mount_point();
- XBT_DEBUG("No absolute path given for file opening, use '%s'", mount.c_str());
+MPI_Errhandler SMPI_default_File_Errhandler = _smpi_cfg_default_errhandler_is_error ? MPI_ERRORS_ARE_FATAL : MPI_ERRORS_RETURN;;
+
+namespace simgrid::smpi {
+
+File::File(MPI_Comm comm, const char* filename, int amode, MPI_Info info) : comm_(comm), flags_(amode), info_(info)
+{
+ if (info_ != MPI_INFO_NULL)
+ info_->ref();
+ std::string fullname = filename;
+ xbt_assert(not simgrid::s4u::Host::current()->get_disks().empty(),
+ "SMPI/IO : Trying to open file on a diskless host ! Add one to your platform file");
+
+ // in case no fullpath is provided ... just pick the first mountpoint.
+ if (size_t found = fullname.find('/'); found == std::string::npos || fullname.rfind("./", 1) != std::string::npos) {
+ const auto* disk = simgrid::s4u::Host::current()->get_disks().front();
+ std::string mount;
+ if (disk->get_host() != simgrid::s4u::Host::current())
+ mount = disk->extension<simgrid::s4u::FileSystemDiskExt>()->get_mount_point(disk->get_host());
+ else
+ mount = disk->extension<simgrid::s4u::FileSystemDiskExt>()->get_mount_point();
+ XBT_DEBUG("No absolute path given for file opening, use '%s'", mount.c_str());
+ if (fullname.rfind("./", 1) != std::string::npos)
+ fullname.replace(fullname.begin(), fullname.begin() + 1, mount);
+ else {
mount.append("/");
fullname.insert(0, mount);
}
-
- file_= new simgrid::s4u::File(fullname, nullptr);
- list_=nullptr;
- if (comm_->rank() == 0) {
- int size= comm_->size() + FP_SIZE;
- list_ = new char[size];
- errhandler_= SMPI_default_File_Errhandler;
- errhandler_->ref();
- memset(list_, 0, size);
- shared_file_pointer_ = new MPI_Offset();
- shared_mutex_ = s4u::Mutex::create();
- *shared_file_pointer_ = 0;
- win_=new Win(list_, size, 1, MPI_INFO_NULL, comm_);
- }else{
- errhandler_ = MPI_ERRHANDLER_NULL;
- win_=new Win(list_, 0, 1, MPI_INFO_NULL, comm_);
- }
- simgrid::smpi::colls::bcast(&shared_file_pointer_, 1, MPI_AINT, 0, comm);
- simgrid::smpi::colls::bcast(&shared_mutex_, 1, MPI_AINT, 0, comm);
- if(comm_->rank() != 0)
- intrusive_ptr_add_ref(&*shared_mutex_);
}
-
- File::~File(){
- if(comm_->rank() == 0){
- delete shared_file_pointer_;
- delete[] list_;
- }
- delete win_;
- delete file_;
- if (info_ != MPI_INFO_NULL)
- simgrid::smpi::Info::unref(info_);
- if (errhandler_ != MPI_ERRHANDLER_NULL)
- simgrid::smpi::Errhandler::unref(errhandler_);
+ XBT_DEBUG("Opening %s", fullname.c_str());
+ file_ = simgrid::s4u::File::open(fullname, nullptr);
+ list_ = nullptr;
+ disp_ = 0;
+ etype_ = MPI_BYTE;
+ atomicity_ = true;
+ if (comm_->rank() == 0) {
+ int size = comm_->size() + FP_SIZE;
+ list_ = new char[size]();
+ errhandler_ = SMPI_default_File_Errhandler;
+ errhandler_->ref();
+ shared_file_pointer_ = new MPI_Offset();
+ shared_mutex_ = s4u::Mutex::create();
+ *shared_file_pointer_ = 0;
+ win_ = new Win(list_, size, 1, MPI_INFO_NULL, comm_);
+ } else {
+ errhandler_ = MPI_ERRHANDLER_NULL;
+ win_ = new Win(list_, 0, 1, MPI_INFO_NULL, comm_);
}
+ simgrid::smpi::colls::bcast(&shared_file_pointer_, 1, MPI_AINT, 0, comm);
+ simgrid::smpi::colls::bcast(&shared_mutex_, 1, MPI_AINT, 0, comm);
+ if (comm_->rank() != 0)
+ intrusive_ptr_add_ref(&*shared_mutex_);
+ this->add_f();
+}
- int File::close(MPI_File *fh){
- XBT_DEBUG("Closing MPI_File %s", (*fh)->file_->get_path());
- (*fh)->sync();
- if((*fh)->flags() & MPI_MODE_DELETE_ON_CLOSE)
- (*fh)->file_->unlink();
- delete (*fh);
- return MPI_SUCCESS;
+File::~File()
+{
+ if (comm_->rank() == 0) {
+ delete shared_file_pointer_;
+ delete[] list_;
}
+ simgrid::smpi::Win::del(win_);
+ file_->close();
+ F2C::free_f(this->f2c_id());
+ if (info_ != MPI_INFO_NULL)
+ simgrid::smpi::Info::unref(info_);
+ if (errhandler_ != MPI_ERRHANDLER_NULL)
+ simgrid::smpi::Errhandler::unref(errhandler_);
+}
- int File::del(const char* filename, const Info*)
- {
- //get the file with MPI_MODE_DELETE_ON_CLOSE and then close it
- File* f = new File(MPI_COMM_SELF,filename,MPI_MODE_DELETE_ON_CLOSE|MPI_MODE_RDWR, nullptr);
- close(&f);
- return MPI_SUCCESS;
- }
+int File::close(MPI_File* fh)
+{
+ XBT_DEBUG("Closing MPI_File %s", (*fh)->file_->get_path());
+ (*fh)->sync();
+ if ((*fh)->flags() & MPI_MODE_DELETE_ON_CLOSE)
+ (*fh)->file_->unlink();
+ delete (*fh);
+ return MPI_SUCCESS;
+}
- int File::get_position(MPI_Offset* offset){
- *offset=file_->tell();
- return MPI_SUCCESS;
- }
+int File::del(const char* filename, const Info*)
+{
+ // get the file with MPI_MODE_DELETE_ON_CLOSE and then close it
+ auto* f = new File(MPI_COMM_SELF, filename, MPI_MODE_DELETE_ON_CLOSE | MPI_MODE_RDWR, nullptr);
+ close(&f);
+ return MPI_SUCCESS;
+}
- int File::get_position_shared(MPI_Offset* offset){
- shared_mutex_->lock();
- *offset=*shared_file_pointer_;
- shared_mutex_->unlock();
- return MPI_SUCCESS;
- }
+int File::get_position(MPI_Offset* offset) const
+{
+ *offset = file_->tell()/etype_->get_extent();
+ return MPI_SUCCESS;
+}
- int File::seek(MPI_Offset offset, int whence){
- switch(whence){
- case(MPI_SEEK_SET):
- XBT_VERB("Seeking in MPI_File %s, setting offset %lld", file_->get_path(), offset);
- file_->seek(offset,SEEK_SET);
- break;
- case(MPI_SEEK_CUR):
- XBT_VERB("Seeking in MPI_File %s, current offset + %lld", file_->get_path(), offset);
- file_->seek(offset,SEEK_CUR);
- break;
- case(MPI_SEEK_END):
- XBT_VERB("Seeking in MPI_File %s, end offset + %lld", file_->get_path(), offset);
- file_->seek(offset,SEEK_END);
- break;
- default:
- return MPI_ERR_FILE;
- }
- return MPI_SUCCESS;
- }
+int File::get_position_shared(MPI_Offset* offset) const
+{
+ const std::scoped_lock lock(*shared_mutex_);
+ *offset = *shared_file_pointer_/etype_->get_extent();
+ return MPI_SUCCESS;
+}
- int File::seek_shared(MPI_Offset offset, int whence){
- shared_mutex_->lock();
- seek(offset,whence);
- *shared_file_pointer_=offset;
- shared_mutex_->unlock();
- return MPI_SUCCESS;
+int File::seek(MPI_Offset offset, int whence)
+{
+ switch (whence) {
+ case MPI_SEEK_SET:
+ XBT_VERB("Seeking in MPI_File %s, setting offset %lld", file_->get_path(), offset);
+ file_->seek(offset, SEEK_SET);
+ break;
+ case MPI_SEEK_CUR:
+ XBT_VERB("Seeking in MPI_File %s, current offset + %lld", file_->get_path(), offset);
+ file_->seek(offset, SEEK_CUR);
+ break;
+ case MPI_SEEK_END:
+ XBT_VERB("Seeking in MPI_File %s, end offset + %lld", file_->get_path(), offset);
+ file_->seek(offset, SEEK_END);
+ break;
+ default:
+ return MPI_ERR_FILE;
}
+ return MPI_SUCCESS;
+}
- int File::read(MPI_File fh, void* /*buf*/, int count, MPI_Datatype datatype, MPI_Status* status)
- {
- //get position first as we may be doing non contiguous reads and it will probably be updated badly
- MPI_Offset position = fh->file_->tell();
- MPI_Offset movesize = datatype->get_extent()*count;
- MPI_Offset readsize = datatype->size()*count;
- XBT_DEBUG("Position before read in MPI_File %s : %llu",fh->file_->get_path(),fh->file_->tell());
- MPI_Offset read = fh->file_->read(readsize);
- XBT_VERB("Read in MPI_File %s, %lld bytes read, readsize %lld bytes, movesize %lld", fh->file_->get_path(), read, readsize, movesize);
- if(readsize!=movesize){
- fh->file_->seek(position+movesize, SEEK_SET);
- }
- XBT_VERB("Position after read in MPI_File %s : %llu",fh->file_->get_path(), fh->file_->tell());
- if(status != MPI_STATUS_IGNORE)
- status->count=count*datatype->size();
- return MPI_SUCCESS;
+int File::seek_shared(MPI_Offset offset, int whence)
+{
+ const std::scoped_lock lock(*shared_mutex_);
+ seek(offset, whence);
+ *shared_file_pointer_ = file_->tell();
+ return MPI_SUCCESS;
+}
+
+int File::read(MPI_File fh, void* /*buf*/, int count, const Datatype* datatype, MPI_Status* status)
+{
+ // get position first as we may be doing non contiguous reads and it will probably be updated badly
+ MPI_Offset position = fh->file_->tell();
+ MPI_Offset movesize = datatype->get_extent() * count;
+ MPI_Offset readsize = datatype->size() * count;
+ XBT_DEBUG("Position before read in MPI_File %s : %llu, size %llu", fh->file_->get_path(), fh->file_->tell(), fh->file_->size());
+ MPI_Offset read = fh->file_->read(readsize);
+ XBT_VERB("Read in MPI_File %s, %lld bytes read, count %d, readsize %lld bytes, movesize %lld", fh->file_->get_path(), read, count,
+ readsize, movesize);
+ if (readsize != movesize) {
+ fh->file_->seek(position + movesize, SEEK_SET);
}
+ XBT_VERB("Position after read in MPI_File %s : %llu", fh->file_->get_path(), fh->file_->tell());
+ if (status != MPI_STATUS_IGNORE)
+ status->count = count * datatype->size();
+ return MPI_SUCCESS;
+}
- /*Ordered and Shared Versions, with RMA-based locks : Based on the model described in :*/
- /* @InProceedings{10.1007/11557265_15,*/
- /* author="Latham, Robert and Ross, Robert and Thakur, Rajeev and Toonen, Brian",*/
- /* title="Implementing MPI-IO Shared File Pointers Without File System Support",*/
- /* booktitle="Recent Advances in Parallel Virtual Machine and Message Passing Interface",*/
- /* year="2005",*/
- /* publisher="Springer Berlin Heidelberg",*/
- /* address="Berlin, Heidelberg",*/
- /* pages="84--93"*/
- /* }*/
- int File::read_shared(MPI_File fh, void *buf, int count, MPI_Datatype datatype, MPI_Status *status){
- fh->shared_mutex_->lock();
- fh->seek(*(fh->shared_file_pointer_),MPI_SEEK_SET);
+/*Ordered and Shared Versions, with RMA-based locks : Based on the model described in :*/
+/* @InProceedings{10.1007/11557265_15,*/
+/* author="Latham, Robert and Ross, Robert and Thakur, Rajeev and Toonen, Brian",*/
+/* title="Implementing MPI-IO Shared File Pointers Without File System Support",*/
+/* booktitle="Recent Advances in Parallel Virtual Machine and Message Passing Interface",*/
+/* year="2005",*/
+/* publisher="Springer Berlin Heidelberg",*/
+/* address="Berlin, Heidelberg",*/
+/* pages="84--93"*/
+/* }*/
+int File::read_shared(MPI_File fh, void* buf, int count, const Datatype* datatype, MPI_Status* status)
+{
+ if (const std::scoped_lock lock(*fh->shared_mutex_); true) {
+ fh->seek(*(fh->shared_file_pointer_), MPI_SEEK_SET);
read(fh, buf, count, datatype, status);
- *(fh->shared_file_pointer_)=fh->file_->tell();
- fh->shared_mutex_->unlock();
- return MPI_SUCCESS;
+ *(fh->shared_file_pointer_) = fh->file_->tell();
}
+ fh->seek(*(fh->shared_file_pointer_), MPI_SEEK_SET);
+ return MPI_SUCCESS;
+}
- int File::read_ordered(MPI_File fh, void *buf, int count, MPI_Datatype datatype, MPI_Status *status){
- //0 needs to get the shared pointer value
- MPI_Offset val;
- if(fh->comm_->rank()==0){
- val=*(fh->shared_file_pointer_);
- }else{
- val=count*datatype->size();
- }
+int File::read_ordered(MPI_File fh, void* buf, int count, const Datatype* datatype, MPI_Status* status)
+{
+ // 0 needs to get the shared pointer value
+ MPI_Offset val;
+ if (fh->comm_->rank() == 0) {
+ val = *(fh->shared_file_pointer_);
+ } else {
+ val = count * datatype->size();
+ }
- MPI_Offset result;
- simgrid::smpi::colls::scan(&val, &result, 1, MPI_OFFSET, MPI_SUM, fh->comm_);
- fh->seek(result, MPI_SEEK_SET);
- int ret = fh->op_all<simgrid::smpi::File::read>(buf, count, datatype, status);
- if(fh->comm_->rank()==fh->comm_->size()-1){
- fh->shared_mutex_->lock();
- *(fh->shared_file_pointer_)=fh->file_->tell();
- fh->shared_mutex_->unlock();
- }
- char c;
- simgrid::smpi::colls::bcast(&c, 1, MPI_BYTE, fh->comm_->size() - 1, fh->comm_);
- return ret;
+ MPI_Offset result;
+ simgrid::smpi::colls::scan(&val, &result, 1, MPI_OFFSET, MPI_SUM, fh->comm_);
+ MPI_Offset prev;
+ fh->get_position(&prev);
+ fh->seek(result, MPI_SEEK_SET);
+ int ret = fh->op_all<simgrid::smpi::File::read>(buf, count, datatype, status);
+ if (fh->comm_->rank() == fh->comm_->size() - 1) {
+ const std::scoped_lock lock(*fh->shared_mutex_);
+ *(fh->shared_file_pointer_)=fh->file_->tell();
}
+ char c;
+ simgrid::smpi::colls::bcast(&c, 1, MPI_BYTE, fh->comm_->size() - 1, fh->comm_);
+ fh->seek(prev, MPI_SEEK_SET);
+ return ret;
+}
- int File::write(MPI_File fh, void* /*buf*/, int count, MPI_Datatype datatype, MPI_Status* status)
- {
- //get position first as we may be doing non contiguous reads and it will probably be updated badly
- MPI_Offset position = fh->file_->tell();
- MPI_Offset movesize = datatype->get_extent()*count;
- MPI_Offset writesize = datatype->size()*count;
- XBT_DEBUG("Position before write in MPI_File %s : %llu",fh->file_->get_path(),fh->file_->tell());
- MPI_Offset write = fh->file_->write(writesize, true);
- XBT_VERB("Write in MPI_File %s, %lld bytes written, readsize %lld bytes, movesize %lld", fh->file_->get_path(), write, writesize, movesize);
- if(writesize!=movesize){
- fh->file_->seek(position+movesize, SEEK_SET);
- }
- XBT_VERB("Position after write in MPI_File %s : %llu",fh->file_->get_path(), fh->file_->tell());
- if(status != MPI_STATUS_IGNORE)
- status->count=count*datatype->size();
- return MPI_SUCCESS;
+int File::write(MPI_File fh, void* /*buf*/, int count, const Datatype* datatype, MPI_Status* status)
+{
+ // get position first as we may be doing non contiguous reads and it will probably be updated badly
+ MPI_Offset position = fh->file_->tell();
+ MPI_Offset movesize = datatype->get_extent() * count;
+ MPI_Offset writesize = datatype->size() * count;
+ XBT_DEBUG("Position before write in MPI_File %s : %llu, size %llu", fh->file_->get_path(), fh->file_->tell(), fh->file_->size());
+ MPI_Offset write = fh->file_->write(writesize, true);
+ XBT_VERB("Write in MPI_File %s, %lld bytes written, count %d, writesize %lld bytes, movesize %lld", fh->file_->get_path(), write,
+ count, writesize, movesize);
+ if (writesize != movesize) {
+ fh->file_->seek(position + movesize, SEEK_SET);
}
+ XBT_VERB("Position after write in MPI_File %s : %llu", fh->file_->get_path(), fh->file_->tell());
+ if (status != MPI_STATUS_IGNORE)
+ status->count = count * datatype->size();
+ return MPI_SUCCESS;
+}
- int File::write_shared(MPI_File fh, const void *buf, int count, MPI_Datatype datatype, MPI_Status *status){
- fh->shared_mutex_->lock();
- fh->seek(*(fh->shared_file_pointer_),MPI_SEEK_SET);
- write(fh, const_cast<void*>(buf), count, datatype, status);
+int File::write_shared(MPI_File fh, const void* buf, int count, const Datatype* datatype, MPI_Status* status)
+{
+ const std::scoped_lock lock(*fh->shared_mutex_);
+ XBT_DEBUG("Write shared on %s - Shared ptr before : %lld", fh->file_->get_path(), *(fh->shared_file_pointer_));
+ fh->seek(*(fh->shared_file_pointer_), MPI_SEEK_SET);
+ write(fh, const_cast<void*>(buf), count, datatype, status);
+ *(fh->shared_file_pointer_) = fh->file_->tell();
+ XBT_DEBUG("Write shared on %s - Shared ptr after : %lld", fh->file_->get_path(), *(fh->shared_file_pointer_));
+ fh->seek(*(fh->shared_file_pointer_), MPI_SEEK_SET);
+ return MPI_SUCCESS;
+}
+
+int File::write_ordered(MPI_File fh, const void* buf, int count, const Datatype* datatype, MPI_Status* status)
+{
+ // 0 needs to get the shared pointer value
+ MPI_Offset val;
+ if (fh->comm_->rank() == 0) {
+ val = *(fh->shared_file_pointer_);
+ } else {
+ val = count * datatype->size();
+ }
+ MPI_Offset result;
+ simgrid::smpi::colls::scan(&val, &result, 1, MPI_OFFSET, MPI_SUM, fh->comm_);
+ MPI_Offset prev;
+ fh->get_position(&prev);
+ fh->seek(result, MPI_SEEK_SET);
+ int ret = fh->op_all<simgrid::smpi::File::write>(const_cast<void*>(buf), count, datatype, status);
+ if (fh->comm_->rank() == fh->comm_->size() - 1) {
+ const std::scoped_lock lock(*fh->shared_mutex_);
*(fh->shared_file_pointer_)=fh->file_->tell();
- fh->shared_mutex_->unlock();
- return MPI_SUCCESS;
}
+ char c;
+ simgrid::smpi::colls::bcast(&c, 1, MPI_BYTE, fh->comm_->size() - 1, fh->comm_);
+ fh->seek(prev, MPI_SEEK_SET);
+ return ret;
+}
- int File::write_ordered(MPI_File fh, const void *buf, int count, MPI_Datatype datatype, MPI_Status *status){
- //0 needs to get the shared pointer value
- MPI_Offset val;
- if(fh->comm_->rank()==0){
- val=*(fh->shared_file_pointer_);
- }else{
- val=count*datatype->size();
- }
- MPI_Offset result;
- simgrid::smpi::colls::scan(&val, &result, 1, MPI_OFFSET, MPI_SUM, fh->comm_);
- fh->seek(result, MPI_SEEK_SET);
- int ret = fh->op_all<simgrid::smpi::File::write>(const_cast<void*>(buf), count, datatype, status);
- if(fh->comm_->rank()==fh->comm_->size()-1){
- fh->shared_mutex_->lock();
- *(fh->shared_file_pointer_)=fh->file_->tell();
- fh->shared_mutex_->unlock();
- }
- char c;
- simgrid::smpi::colls::bcast(&c, 1, MPI_BYTE, fh->comm_->size() - 1, fh->comm_);
- return ret;
+int File::set_view(MPI_Offset disp, MPI_Datatype etype, MPI_Datatype filetype, const char* datarep, const Info*)
+{
+ etype_ = etype;
+ filetype_ = filetype;
+ datarep_ = datarep;
+ disp_ = disp;
+ if (comm_->rank() == 0){
+ if(disp != MPI_DISPLACEMENT_CURRENT)
+ seek_shared(disp, MPI_SEEK_SET);
+ else
+ seek_shared(0, MPI_SEEK_CUR);
}
+ sync();
+ return MPI_SUCCESS;
+}
- int File::set_view(MPI_Offset /*disp*/, MPI_Datatype etype, MPI_Datatype filetype, const char* datarep, const Info*)
- {
- etype_=etype;
- filetype_=filetype;
- datarep_=std::string(datarep);
- seek_shared(0,MPI_SEEK_SET);
- return MPI_SUCCESS;
- }
+int File::get_view(MPI_Offset* disp, MPI_Datatype* etype, MPI_Datatype* filetype, char* datarep) const
+{
+ *disp = disp_;
+ *etype = etype_;
+ *filetype = filetype_;
+ snprintf(datarep, MPI_MAX_NAME_STRING + 1, "%s", datarep_.c_str());
+ return MPI_SUCCESS;
+}
- int File::get_view(MPI_Offset* /*disp*/, MPI_Datatype* etype, MPI_Datatype* filetype, char* datarep)
- {
- *etype=etype_;
- *filetype=filetype_;
- snprintf(datarep, MPI_MAX_NAME_STRING+1, "%s", datarep_.c_str());
- return MPI_SUCCESS;
- }
+int File::size() const
+{
+ return file_->size();
+}
- int File::size(){
- return file_->size();
- }
+void File::set_size(int size)
+{
+ file_->write(size, true);
+}
- int File::flags(){
- return flags_;
- }
+int File::flags() const
+{
+ return flags_;
+}
- int File::sync(){
- //no idea
- return simgrid::smpi::colls::barrier(comm_);
- }
+MPI_Datatype File::etype() const
+{
+ return etype_;
+}
- MPI_Info File::info()
- {
- if (info_ == MPI_INFO_NULL)
- info_ = new Info();
+int File::sync()
+{
+ // no idea
+ return simgrid::smpi::colls::barrier(comm_);
+}
+
+MPI_Info File::info()
+{
+ return info_;
+}
+
+void File::set_info(MPI_Info info)
+{
+ if (info_ != MPI_INFO_NULL)
+ simgrid::smpi::Info::unref(info_);
+ info_ = info;
+ if (info_ != MPI_INFO_NULL)
info_->ref();
- return info_;
- }
+}
- void File::set_info(MPI_Info info)
- {
- if (info_ != MPI_INFO_NULL)
- simgrid::smpi::Info::unref(info_);
- info_ = info;
- if (info_ != MPI_INFO_NULL)
- info_->ref();
- }
+MPI_Comm File::comm() const
+{
+ return comm_;
+}
- MPI_Comm File::comm(){
- return comm_;
- }
+MPI_Errhandler File::errhandler()
+{
+ if (errhandler_ != MPI_ERRHANDLER_NULL)
+ errhandler_->ref();
+ return errhandler_;
+}
- MPI_Errhandler File::errhandler()
- {
- if (errhandler_ != MPI_ERRHANDLER_NULL)
- errhandler_->ref();
- return errhandler_;
- }
+void File::set_errhandler(MPI_Errhandler errhandler)
+{
+ if (errhandler_ != MPI_ERRHANDLER_NULL)
+ simgrid::smpi::Errhandler::unref(errhandler_);
+ errhandler_ = errhandler;
+ if (errhandler_ != MPI_ERRHANDLER_NULL)
+ errhandler_->ref();
+}
- void File::set_errhandler(MPI_Errhandler errhandler)
- {
- if (errhandler_ != MPI_ERRHANDLER_NULL)
- simgrid::smpi::Errhandler::unref(errhandler_);
- errhandler_ = errhandler;
- if (errhandler_ != MPI_ERRHANDLER_NULL)
- errhandler_->ref();
- }
+File* File::f2c(int id)
+{
+ return static_cast<File*>(F2C::f2c(id));
}
+
+void File::set_atomicity(bool a){
+ atomicity_ = a;
+}
+
+bool File::get_atomicity() const
+{
+ return atomicity_;
}
+
+} // namespace simgrid::smpi
