libMesh::RBDataDeserialization::RBEvaluationDeserialization Class Reference

This class de-serializes an RBEvaluation object using the Cap'n Proto library. More...

#include <rb_data_deserialization.h>

Public Member Functions
	RBEvaluationDeserialization (RBEvaluation &rb_eval)
	Initialize a new buffer using the structure from the Cap'n'Proto schema described in rb_data.capnp. More...
	RBEvaluationDeserialization (RBEvaluationDeserialization &&)=default
	Special functions. More...
	RBEvaluationDeserialization (const RBEvaluationDeserialization &)=default
RBEvaluationDeserialization &	operator= (const RBEvaluationDeserialization &)=delete
RBEvaluationDeserialization &	operator= (RBEvaluationDeserialization &&)=delete
virtual	~RBEvaluationDeserialization ()
void	read_from_file (const std::string &path, bool read_error_bound_data, bool use_packing=false)
	Read the Cap'n'Proto buffer from disk. More...

Private Attributes
RBEvaluation &	_rb_eval
	The RBEvaluation object that we will read into. More...

Detailed Description

This class de-serializes an RBEvaluation object using the Cap'n Proto library.

Author

David Knezevic

Date

2015 Deserializes RBEvaluation objects using Cap'n Proto.

Definition at line 60 of file rb_data_deserialization.h.

Constructor & Destructor Documentation

RBEvaluationDeserialization() [1/3]

libMesh::RBDataDeserialization::RBEvaluationDeserialization::RBEvaluationDeserialization

(

RBEvaluation &

rb_eval

)

Initialize a new buffer using the structure from the Cap'n'Proto schema described in rb_data.capnp.

Definition at line 75 of file rb_data_deserialization.C.

  :
  _rb_eval(rb_eval)
{}

RBEvaluationDeserialization() [2/3]

libMesh::RBDataDeserialization::RBEvaluationDeserialization::RBEvaluationDeserialization ( RBEvaluationDeserialization &&  )

default

Special functions.

• This class contains a reference, so it can't be default copy/move-assigned.
• The destructor is defaulted out of line.

RBEvaluationDeserialization() [3/3]

libMesh::RBDataDeserialization::RBEvaluationDeserialization::RBEvaluationDeserialization ( const RBEvaluationDeserialization &  )

default

~RBEvaluationDeserialization()

libMesh::RBDataDeserialization::RBEvaluationDeserialization::~RBEvaluationDeserialization ( )

virtualdefault

Member Function Documentation

operator=() [1/2]

RBEvaluationDeserialization& libMesh::RBDataDeserialization::RBEvaluationDeserialization::operator= ( const RBEvaluationDeserialization &  )

delete

operator=() [2/2]

RBEvaluationDeserialization& libMesh::RBDataDeserialization::RBEvaluationDeserialization::operator= ( RBEvaluationDeserialization &&  )

delete

read_from_file()

void libMesh::RBDataDeserialization::RBEvaluationDeserialization::read_from_file	(	const std::string &	path,
		bool	read_error_bound_data,
		bool	use_packing = false
	)

Read the Cap'n'Proto buffer from disk.

If use_packing is true, the file is read using the "packed" scheme, which can reduce the filesize on disk.

Definition at line 82 of file rb_data_deserialization.C.

References _rb_eval, and libMesh::RBDataDeserialization::load_rb_evaluation_data().

Referenced by main().

{
  LOG_SCOPE("read_from_file()", "RBEvaluationDeserialization");

  int fd = open(path.c_str(), O_RDONLY);
  libmesh_error_msg_if(!fd, "Couldn't open the buffer file: " + path);

  // Turn off the limit to the amount of data we can read in
  capnp::ReaderOptions reader_options;
  reader_options.traversalLimitInWords = std::numeric_limits<uint64_t>::max();

  std::unique_ptr<capnp::InputStreamMessageReader> message;
  libmesh_try
    {
      // Define the reader type, based on whether or not packing is used.
      if(use_packing)
        message = std::make_unique<capnp::PackedFdMessageReader>(fd, reader_options);
      else
        message = std::make_unique<capnp::StreamFdMessageReader>(fd, reader_options);
    }
  libmesh_catch(...)
    {
      libmesh_error_msg("Failed to open capnp buffer");
    }

#ifndef LIBMESH_USE_COMPLEX_NUMBERS
  RBData::RBEvaluationReal::Reader rb_eval_reader =
    message->getRoot<RBData::RBEvaluationReal>();
#else
  RBData::RBEvaluationComplex::Reader rb_eval_reader =
    message->getRoot<RBData::RBEvaluationComplex>();
#endif

  load_rb_evaluation_data(_rb_eval, rb_eval_reader, read_error_bound_data);

  int error = close(fd);
  libmesh_error_msg_if(error, "Error closing a read-only file descriptor: " + path);
}

Member Data Documentation

_rb_eval

RBEvaluation& libMesh::RBDataDeserialization::RBEvaluationDeserialization::_rb_eval

private

The RBEvaluation object that we will read into.

Definition at line 96 of file rb_data_deserialization.h.

Referenced by read_from_file().

---

The documentation for this class was generated from the following files:

• include/reduced_basis/rb_data_deserialization.h
• src/reduced_basis/rb_data_deserialization.C