An archive for storing local or parallel data, wrapping a BinaryFstreamInputArchive. More...

#include <parallel_archive.h>

Inheritance diagram for madness::archive::ParallelInputArchive< localarchiveT >:

[legend]

Collaboration diagram for madness::archive::ParallelInputArchive< localarchiveT >:

[legend]

Public Types
using	basear = BaseParallelArchive<localarchiveT>
Public Types inherited from madness::archive::BaseInputArchive
using	is_loading = std::true_type
	Type used by Boost.Serialization to determine if this object is an input archive.
Public Types inherited from madness::archive::BaseArchive
using	is_loading = std::false_type
	Type used by Boost.Serialization to determine if this object is an input archive.
using	is_saving = std::false_type
	Type used by Boost.Serialization to determine if this object is an output archive.

Public Member Functions
	ParallelInputArchive (World &world, const char *filename, int nio=1)
	Creates a parallel archive for input.
	ParallelInputArchive (World &world, const std::string filename, int nio=1)
	Creates a parallel archive for input.
	ParallelInputArchive (World &world, localarchiveT &ar, int nio=1)
	Default constructor.
Public Member Functions inherited from madness::archive::BaseParallelArchive< BinaryFstreamInputArchive >
	BaseParallelArchive (World &world, BinaryFstreamInputArchive &ar, int nio)
void	broadcast (objT &obj, ProcessID root) const
	Same as world.gop.broadcast_serializable(obj, root).
void	close ()
	Closes the parallel archive.
bool	dofence () const
	Check if we should fence around a read/write operation.
World *	get_world () const
	Returns a pointer to the world.
ProcessID	io_node (ProcessID rank) const
	Returns the process doing I/O for given node.
bool	is_io_node () const
	Returns true if this node is doing physical I/O.
BinaryFstreamInputArchive &	local_archive () const
	Returns a reference to the local archive.
ProcessID	my_io_node () const
	Returns the process doing I/O for this node.
int	num_io_clients () const
	Returns the number of I/O clients for this node, including self (zero if not an I/O node).
std::enable_if_t< std::is_same< X, BinaryFstreamInputArchive >::value\|\|std::is_same< X, BinaryFstreamOutputArchive >::value, void >	open (World &world, const char *filename, int nwriter=1)
	Opens the parallel archive.
void	set_dofence (bool dofence)
	Set the flag for fencing around a read/write operation.
void	set_nclient (World &world)
Public Member Functions inherited from madness::archive::BaseArchive
	BaseArchive ()

Additional Inherited Members
Static Public Member Functions inherited from madness::archive::BaseParallelArchive< BinaryFstreamInputArchive >
static std::enable_if_t< std::is_same< X, BinaryFstreamInputArchive >::value\|\|std::is_same< X, BinaryFstreamOutputArchive >::value, bool >	exists (World &world, const char *filename)
	Returns true if the named, unopened archive exists on disk with read access.
static std::enable_if_t< std::is_same< X, BinaryFstreamInputArchive >::value\|\|std::is_same< X, BinaryFstreamOutputArchive >::value, void >	remove (World &world, const char *filename)
	Deletes the files associated with the archive of the given name.
Static Public Attributes inherited from madness::archive::BaseParallelArchive< BinaryFstreamInputArchive >
static const bool	is_parallel_archive
	Mark this class as a parallel archive.
Static Public Attributes inherited from madness::archive::BaseInputArchive
static constexpr bool	is_input_archive = true
	Flag to determine if this object is an input archive.
Static Public Attributes inherited from madness::archive::BaseArchive
static constexpr bool	is_archive = true
	Flag to determine if this object is an archive.
static constexpr bool	is_input_archive = false
	Flag to determine if this object is an input archive.
static constexpr bool	is_output_archive = false
	Flag to determine if this object is an output archive.
static constexpr bool	is_parallel_archive = false
	Flag to determine if this object is a parallel archive.

Detailed Description

template<class localarchiveT = BinaryFstreamInputArchive>
class madness::archive::ParallelInputArchive< localarchiveT >

An archive for storing local or parallel data, wrapping a BinaryFstreamInputArchive.

Note: Reads of process-local objects load the values originally stored by process zero, which is then broadcast to all processes.; Reads of parallel containers (presently only WorldContainer) load all data.

The number of I/O nodes or readers is presently ignored. It is forced to be the same as the original number of writers and, therefore, you cannot presently read an archive from a parallel job with fewer total processes than the number of writers.

Member Typedef Documentation

◆ basear

template<class localarchiveT = BinaryFstreamInputArchive>

using madness::archive::ParallelInputArchive< localarchiveT >::basear = BaseParallelArchive<localarchiveT>

Constructor & Destructor Documentation

◆ ParallelInputArchive() [1/3]

template<class localarchiveT = BinaryFstreamInputArchive>

madness::archive::ParallelInputArchive< localarchiveT >::ParallelInputArchive	(	World &	world,
		localarchiveT &	ar,
		int	nio = 1 )

inline

Default constructor.

References madness::archive::BaseParallelArchive< BinaryFstreamInputArchive >::ar, madness::archive::BaseParallelArchive< BinaryFstreamInputArchive >::nio, and madness::archive::BaseParallelArchive< BinaryFstreamInputArchive >::world.

◆ ParallelInputArchive() [2/3]

template<class localarchiveT = BinaryFstreamInputArchive>

madness::archive::ParallelInputArchive< localarchiveT >::ParallelInputArchive	(	World &	world,
		const char *	filename,
		int	nio = 1 )

inline

Creates a parallel archive for input.

Parameters

[in]	world	The world.
[in]	filename	Base name of the file.
[in]	nio	The number of writers. Ignored, see above.

References madness::filename, madness::archive::BaseParallelArchive< BinaryFstreamInputArchive >::nio, madness::archive::BaseParallelArchive< localarchiveT >::open(), and madness::archive::BaseParallelArchive< BinaryFstreamInputArchive >::world.

◆ ParallelInputArchive() [3/3]

template<class localarchiveT = BinaryFstreamInputArchive>

madness::archive::ParallelInputArchive< localarchiveT >::ParallelInputArchive	(	World &	world,
		const std::string	filename,
		int	nio = 1 )

inline

Creates a parallel archive for input.

Parameters

[in]	world	The world.
[in]	filename	Base name of the file.
[in]	nio	The number of writers. Ignored, see above.

References madness::filename, madness::archive::BaseParallelArchive< BinaryFstreamInputArchive >::nio, madness::archive::BaseParallelArchive< localarchiveT >::open(), and madness::archive::BaseParallelArchive< BinaryFstreamInputArchive >::world.

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

parallel_archive.h

Public Types

Public Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ basear

Constructor & Destructor Documentation

◆ ParallelInputArchive() [1/3]

◆ ParallelInputArchive() [2/3]

◆ ParallelInputArchive() [3/3]