-/* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved. */\r
-\r
-/* This program is free software; you can redistribute it and/or modify it\r
- * under the terms of the license (GNU LGPL) which comes with this package. */\r
-#include "private.hpp"\r
-\r
-#include "smpi_comm.hpp"\r
-#include "smpi_coll.hpp"\r
-#include "smpi_datatype.hpp"\r
-#include "smpi_info.hpp"\r
-#include "smpi_file.hpp"\r
-#include "simgrid/plugins/file_system.h"\r
-\r
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_io, smpi, "Logging specific to SMPI (RMA operations)");\r
-\r
-\r
-namespace simgrid{\r
-namespace smpi{\r
- File::File(MPI_Comm comm, char *filename, int amode, MPI_Info info): comm_(comm), flags_(amode), info_(info){\r
- file_= new simgrid::s4u::File(filename, nullptr);\r
- }\r
- \r
- File::~File(){\r
- delete file_;\r
- }\r
-\r
- int File::close(MPI_File *fh){\r
- XBT_DEBUG("Closing MPI_File %s", (*fh)->file_->get_path());\r
- (*fh)->sync();\r
- if((*fh)->flags() & MPI_MODE_DELETE_ON_CLOSE)\r
- (*fh)->file_->unlink();\r
- delete (*fh);\r
- return MPI_SUCCESS;\r
- }\r
-\r
- int File::del(char *filename, MPI_Info info){\r
- //get the file with MPI_MODE_DELETE_ON_CLOSE and then close it\r
- File* f = new File(MPI_COMM_SELF,filename,MPI_MODE_DELETE_ON_CLOSE|MPI_MODE_RDWR, nullptr);\r
- close(&f);\r
- return MPI_SUCCESS;\r
- }\r
-\r
- int File::get_position(MPI_Offset* offset){\r
- *offset=file_->tell();\r
- return MPI_SUCCESS;\r
- }\r
-\r
- int File::seek(MPI_Offset offset, int whence){\r
- switch(whence){\r
- case(MPI_SEEK_SET):\r
- XBT_DEBUG("Seeking in MPI_File %s, setting offset %lld", file_->get_path(), offset);\r
- file_->seek(offset,SEEK_SET);\r
- break;\r
- case(MPI_SEEK_CUR):\r
- XBT_DEBUG("Seeking in MPI_File %s, current offset + %lld", file_->get_path(), offset);\r
- file_->seek(offset,SEEK_CUR);\r
- break;\r
- case(MPI_SEEK_END):\r
- XBT_DEBUG("Seeking in MPI_File %s, end offset + %lld", file_->get_path(), offset);\r
- file_->seek(offset,SEEK_END);\r
- break;\r
- default:\r
- return MPI_ERR_FILE;\r
- }\r
- return MPI_SUCCESS;\r
- }\r
- \r
- int File::read(MPI_File fh, void *buf, int count, MPI_Datatype datatype, MPI_Status *status){\r
- //get position first as we may be doing non contiguous reads and it will probably be updated badly\r
- MPI_Offset position = fh->file_->tell();\r
- MPI_Offset movesize = datatype->get_extent()*count;\r
- MPI_Offset readsize = datatype->size()*count;\r
- XBT_DEBUG("Position before read in MPI_File %s : %llu",fh->file_->get_path(),fh->file_->tell());\r
- MPI_Offset read = fh->file_->read(readsize);\r
- XBT_DEBUG("Read in MPI_File %s, %lld bytes read, readsize %lld bytes, movesize %lld", fh->file_->get_path(), read, readsize, movesize);\r
- if(readsize!=movesize){\r
- fh->file_->seek(position+movesize, SEEK_SET);\r
- }\r
- XBT_DEBUG("Position after read in MPI_File %s : %llu",fh->file_->get_path(), fh->file_->tell());\r
- return MPI_SUCCESS;\r
- }\r
-\r
-\r
- int File::write(MPI_File fh, void *buf, int count, MPI_Datatype datatype, MPI_Status *status){\r
- //get position first as we may be doing non contiguous reads and it will probably be updated badly\r
- MPI_Offset position = fh->file_->tell();\r
- MPI_Offset movesize = datatype->get_extent()*count;\r
- MPI_Offset writesize = datatype->size()*count;\r
- XBT_DEBUG("Position before write in MPI_File %s : %llu",fh->file_->get_path(),fh->file_->tell());\r
- MPI_Offset write = fh->file_->write(writesize);\r
- XBT_DEBUG("Write in MPI_File %s, %lld bytes read, readsize %lld bytes, movesize %lld", fh->file_->get_path(), write, writesize, movesize);\r
- if(writesize!=movesize){\r
- fh->file_->seek(position+movesize, SEEK_SET);\r
- }\r
- XBT_DEBUG("Position after write in MPI_File %s : %llu",fh->file_->get_path(), fh->file_->tell());\r
- return MPI_SUCCESS;\r
- }\r
-\r
- int File::size(){\r
- return file_->size();\r
- }\r
-\r
- int File::flags(){\r
- return flags_;\r
- }\r
-\r
- int File::sync(){\r
- //no idea\r
- return simgrid::smpi::Colls::barrier(comm_);\r
- }\r
-MPI_Info File::info(){\r
- if(info_== MPI_INFO_NULL)\r
- info_ = new Info();\r
- info_->ref();\r
- return info_;\r
-}\r
-\r
-void File::set_info(MPI_Info info){\r
- if(info_!= MPI_INFO_NULL)\r
- info->ref();\r
- info_=info;\r
-}\r
-\r
-}\r
-}\r
+/* Copyright (c) 2007-2019. 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 "private.hpp"
+
+#include "smpi_comm.hpp"
+#include "smpi_coll.hpp"
+#include "smpi_datatype.hpp"
+#include "smpi_info.hpp"
+#include "smpi_win.hpp"
+#include "smpi_request.hpp"
+
+#include "smpi_file.hpp"
+#include "smpi_status.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)");
+
+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);
+ list_=nullptr;
+ if (comm_->rank() == 0) {
+ int size= comm_->size() + FP_SIZE;
+ list_ = new char[size];
+ errhandler_=MPI_ERRORS_RETURN;
+ 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{
+ 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_;
+ }
+
+ 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::del(const char* filename, MPI_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::get_position(MPI_Offset* offset){
+ *offset=file_->tell();
+ 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::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::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::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());
+ 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);
+ read(fh, buf, count, datatype, status);
+ *(fh->shared_file_pointer_)=fh->file_->tell();
+ fh->shared_mutex_->unlock();
+ 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();
+ }
+
+ 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;
+ }
+
+ 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, 1);
+ 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();
+ 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);
+ *(fh->shared_file_pointer_)=fh->file_->tell();
+ 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){
+ //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::size(){
+ return file_->size();
+ }
+
+ int File::flags(){
+ return flags_;
+ }
+
+ int File::sync(){
+ //no idea
+ return simgrid::smpi::Colls::barrier(comm_);
+ }
+
+ 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;
+ }
+
+ MPI_Comm File::comm(){
+ return comm_;
+ }
+
+ MPI_Errhandler File::errhandler(){
+ return errhandler_;
+ }
+
+ void File::set_errhandler(MPI_Errhandler errhandler){
+ errhandler_=errhandler;
+ if(errhandler_!= MPI_ERRHANDLER_NULL)
+ errhandler->ref();
+ }
+}
+}
