#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)
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);
+ 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());
+ 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;
}else{
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_);
}
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;
}
}
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;
}
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;
}
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::set_view(MPI_Offset disp, MPI_Datatype etype, MPI_Datatype filetype, const char *datarep, MPI_Info 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){
+ *etype=etype_;
+ *filetype=filetype_;
+ snprintf(datarep, MPI_MAX_NAME_STRING+1, "%s", datarep_.c_str());
+ return MPI_SUCCESS;
+ }
+
int File::size(){
return file_->size();
}
int File::sync(){
//no idea
- return simgrid::smpi::Colls::barrier(comm_);
+ return simgrid::smpi::colls::barrier(comm_);
}
MPI_Info File::info(){