-/* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2021. 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 "smpi_file.hpp"
#include "smpi_status.hpp"
+#include "simgrid/s4u/Disk.hpp"
+#include "simgrid/s4u/Host.hpp"
#include "simgrid/plugins/file_system.h"
#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) {
- file_= new simgrid::s4u::File(filename, nullptr);
+ 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");
+
+ size_t found=fullname.find('/');
+ //in case no fullpath is provided ... just pick the first mountpoint.
+ if(found==std::string::npos || fullname.rfind("./", 1) != 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());
+ 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_=MPI_ERRORS_RETURN;
+ 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);
+ 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();
}
File::~File(){
}
delete win_;
delete file_;
+ 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::close(MPI_File *fh){
return MPI_SUCCESS;
}
- int File::del(const char* filename, MPI_Info)
+ 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);
+ 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(MPI_Offset* offset){
+ int File::get_position(MPI_Offset* offset) const
+ {
*offset=file_->tell();
return MPI_SUCCESS;
}
- int File::get_position_shared(MPI_Offset* offset){
+ int File::get_position_shared(MPI_Offset* offset) const
+ {
shared_mutex_->lock();
*offset=*shared_file_pointer_;
shared_mutex_->unlock();
int File::seek(MPI_Offset offset, int whence){
switch(whence){
- case(MPI_SEEK_SET):
+ 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):
+ 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):
+ case MPI_SEEK_END:
XBT_VERB("Seeking in MPI_File %s, end offset + %lld", file_->get_path(), offset);
file_->seek(offset,SEEK_END);
break;
int File::seek_shared(MPI_Offset offset, int whence){
shared_mutex_->lock();
seek(offset,whence);
- *shared_file_pointer_=offset;
+ *shared_file_pointer_=file_->tell();
shared_mutex_->unlock();
return MPI_SUCCESS;
}
- int File::read(MPI_File fh, void* /*buf*/, int count, MPI_Datatype datatype, MPI_Status* status)
+ 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();
fh->file_->seek(position+movesize, SEEK_SET);
}
XBT_VERB("Position after read in MPI_File %s : %llu",fh->file_->get_path(), fh->file_->tell());
- status->count=count*datatype->size();
+ if(status != MPI_STATUS_IGNORE)
+ status->count=count*datatype->size();
return MPI_SUCCESS;
}
/* address="Berlin, Heidelberg",*/
/* pages="84--93"*/
/* }*/
- int File::read_shared(MPI_File fh, void *buf, int count, MPI_Datatype datatype, MPI_Status *status){
+ int File::read_shared(MPI_File fh, void* buf, int count, const Datatype* datatype, MPI_Status* status)
+ {
fh->shared_mutex_->lock();
fh->seek(*(fh->shared_file_pointer_),MPI_SEEK_SET);
read(fh, buf, count, datatype, status);
return MPI_SUCCESS;
}
- int File::read_ordered(MPI_File fh, void *buf, int count, MPI_Datatype datatype, MPI_Status *status){
+ 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){
}
MPI_Offset result;
- simgrid::smpi::Colls::scan(&val, &result, 1, MPI_OFFSET, MPI_SUM, fh->comm_);
+ 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_->unlock();
}
char c;
- simgrid::smpi::Colls::bcast(&c, 1, MPI_BYTE, fh->comm_->size()-1, fh->comm_);
+ simgrid::smpi::colls::bcast(&c, 1, MPI_BYTE, fh->comm_->size() - 1, fh->comm_);
return ret;
}
- int File::write(MPI_File fh, void* /*buf*/, int count, MPI_Datatype datatype, MPI_Status* status)
+ 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",fh->file_->get_path(),fh->file_->tell());
- MPI_Offset write = fh->file_->write(writesize, 1);
+ 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());
- status->count=count*datatype->size();
+ 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){
+ int File::write_shared(MPI_File fh, const void* buf, int count, const Datatype* datatype, MPI_Status* status)
+ {
fh->shared_mutex_->lock();
+ 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->shared_mutex_->unlock();
return MPI_SUCCESS;
}
- int File::write_ordered(MPI_File fh, const void *buf, int count, MPI_Datatype datatype, MPI_Status *status){
+ 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=count*datatype->size();
}
MPI_Offset result;
- simgrid::smpi::Colls::scan(&val, &result, 1, MPI_OFFSET, MPI_SUM, fh->comm_);
+ 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_->unlock();
}
char c;
- simgrid::smpi::Colls::bcast(&c, 1, MPI_BYTE, fh->comm_->size()-1, fh->comm_);
+ simgrid::smpi::colls::bcast(&c, 1, MPI_BYTE, fh->comm_->size() - 1, fh->comm_);
return ret;
}
- int File::size(){
+ 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
+ {
+ *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::flags(){
+ void File::set_size(int size)
+ {
+ file_->write(size, true);
+ }
+
+ int File::flags() const
+ {
return flags_;
}
int File::sync(){
//no idea
- return simgrid::smpi::Colls::barrier(comm_);
+ return simgrid::smpi::colls::barrier(comm_);
}
- MPI_Info File::info(){
- if(info_== MPI_INFO_NULL)
+ MPI_Info File::info()
+ {
+ if (info_ == MPI_INFO_NULL)
info_ = new Info();
info_->ref();
return info_;
}
- void File::set_info(MPI_Info info){
- if(info_!= MPI_INFO_NULL)
- info->ref();
- info_=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(){
+ MPI_Comm File::comm() const
+ {
return comm_;
}
- MPI_Errhandler File::errhandler(){
+ MPI_Errhandler File::errhandler()
+ {
+ if (errhandler_ != MPI_ERRHANDLER_NULL)
+ errhandler_->ref();
return errhandler_;
}
- void File::set_errhandler(MPI_Errhandler 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));
}
}
}
