+ int File::read(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 = 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",file_->get_path(),file_->tell());\r
+ MPI_Offset read = file_->read(readsize);\r
+ XBT_DEBUG("Read in MPI_File %s, %lld bytes read, readsize %lld bytes, movesize %lld", file_->get_path(), read, readsize, movesize);\r
+ if(readsize!=movesize){\r
+ file_->seek(position+movesize, SEEK_SET);\r
+ }\r
+ XBT_DEBUG("Position after read in MPI_File %s : %llu",file_->get_path(), file_->tell());\r
+ return MPI_SUCCESS;\r
+ }\r
+\r