#include <io.h>

Inherited by fof_io< partset >, and snap_io.

Public Member Functions
	IO_Def (MPI_Comm comm, int format)

virtual	~IO_Def ()

virtual void	fill_file_header (int writeTask, int lastTask, long long nloc_part, long long npart)=0

virtual void	read_file_header (const char fname, int filenr, int readTask, int lastTask, long long nloc_part, long long npart, int nstart)=0

virtual void	get_datagroup_name (int grnr, char *gname)=0

virtual void	write_header_fields (hid_t)=0

virtual void	read_header_fields (const char *fname)=0

virtual void	read_increase_numbers (int type, int n_for_this_task)=0

virtual int	get_filenr_from_header (void)=0

virtual void	set_filenr_in_header (int)=0

virtual void *	get_base_address_of_structure (enum arrays array, int index)=0

virtual int	get_type_of_element (int index)=0

virtual void	set_type_of_element (int index, int type)=0

void	init_field (const char label, const char datasetname, enum types_in_memory type_in_memory, enum types_in_file type_in_file_output, enum read_flags read_flag, int values_per_block, enum arrays array, void pointer_to_field, void(io_func)(IO_Def , int, int, void , int), int typelist_bitmask, int hasunits, double a, double h, double L, double M, double V, double c, bool compression_on=false)

int	find_files (const char fname, const char fname_multiple)
	This function determines on how many files a given snapshot or group/desc catalogue is distributed. More...

void	read_files_driver (const char *fname, int rep, int numfiles)

void	write_multiple_files (char *fname, int numfilesperdump, int append_flag=0, int chunk_size=0)

void	write_compile_time_options_in_hdf5 (hid_t handle)

void	read_segment (const char *fname, int type, long long offset, long long count, int numfiles)

void	read_single_file_segment (const char *fname, int filenr, int type, long long offset, unsigned long long count, long long storage_offset, int numfiles)

void	alloc_and_read_ntype_in_files (const char *fname, int num_files)

Public Member Functions inherited from io_streamcount
size_t	my_fwrite (const void ptr, size_t size, size_t nmemb, FILE stream)
	A wrapper for the fwrite() function. More...

size_t	my_fread (void ptr, size_t size, size_t nmemb, FILE stream)
	A wrapper for the fread() function. More...

void	reset_io_byte_count (void)

long long	get_io_byte_count (void)

Public Member Functions inherited from setcomm
	setcomm (MPI_Comm Comm)

	setcomm (const char *str)

void	initcomm (MPI_Comm Comm)

void	mpi_printf (const char *fmt,...)

void	determine_compute_nodes (void)

Public Attributes
int	N_DataGroups = 0

int	N_IO_Fields = 0

int	Max_IO_Fields = 0

size_t	header_size

void *	header_buf

long long *	ntype_in_files

char	info [100]

enum file_contents	type_of_file

Public Attributes inherited from io_streamcount
long long	byte_count = 0

Public Attributes inherited from setcomm
MPI_Comm	Communicator

int	NTask

int	ThisTask

int	PTask

int	ThisNode

int	NumNodes = 0

int	TasksInThisNode

int	RankInThisNode

int	MinTasksPerNode

int	MaxTasksPerNode

long long	MemoryOnNode

long long	SharedMemoryOnNode

Detailed Description

Definition at line 128 of file io.h.

Constructor & Destructor Documentation

◆ IO_Def()

IO_Def	(	MPI_Comm	comm,
		int	format
	)

inline

Definition at line 131 of file io.h.

◆ ~IO_Def()

~IO_Def ( )

virtual

Definition at line 47 of file io.cc.

Member Function Documentation

◆ alloc_and_read_ntype_in_files()

void alloc_and_read_ntype_in_files	(	const char *	fname,
		int	num_files
	)

Definition at line 2439 of file io.cc.

◆ fill_file_header()

virtual void fill_file_header	(	int	writeTask,
		int	lastTask,
		long long *	nloc_part,
		long long *	npart
	)

pure virtual

Implemented in fof_io< partset >, and snap_io.

◆ find_files()

int find_files	(	const char *	fname,
		const char *	fname_multiple
	)

This function determines on how many files a given snapshot or group/desc catalogue is distributed.

Parameters

fname file name of the snapshot as given in the parameter file

Definition at line 132 of file io.cc.

◆ get_base_address_of_structure()

virtual void * get_base_address_of_structure	(	enum arrays	array,
		int	index
	)

pure virtual

Implemented in fof_io< partset >, and snap_io.

◆ get_datagroup_name()

virtual void get_datagroup_name	(	int	grnr,
		char *	gname
	)

pure virtual

Implemented in fof_io< partset >, and snap_io.

◆ get_filenr_from_header()

virtual int get_filenr_from_header ( void )

pure virtual

Implemented in fof_io< partset >, and snap_io.

◆ get_type_of_element()

virtual int get_type_of_element ( int index )

pure virtual

Implemented in fof_io< partset >, and snap_io.

◆ init_field()

void init_field	(	const char *	label,
		const char *	datasetname,
		enum types_in_memory	type_in_memory,
		enum types_in_file	type_in_file_output,
		enum read_flags	read_flag,
		int	values_per_block,
		enum arrays	array,
		void *	pointer_to_field,
		void()(IO_Def , int, int, void *, int)	io_func,
		int	typelist_bitmask,
		int	flagunit,
		double	a,
		double	h,
		double	L,
		double	M,
		double	V,
		double	c,
		bool	compression_on = `false`
	)

Parameters

field	Specifies the field as an enumeration type iofields (io_private.h), e.g. IO_POS.
label	The label of the dataset (4 characters, for obsolete old format=2)
datasetname	The name of the hdf5 dataset (maximum 256 characters, for format=3)
type_in_memory	The type of the field in the memory
type_in_file_output	The output type in the file if it is written (upon read, the type found will be converted to the memory type)
read_flag	This flags whether the field should be ignored upon read on (use SKIP_ON_READ, else READ_IF_PRESENT).
values_per_block	The number of values per field, e.g. 1 for mass, 3 for velocities
array	The array in which the value is stored
pointer_to_field	A Pointer to the field in one of the global arrays, e.g. &SphP[0].Density, or &P[0].Vel[0]
io_func	Alternatively, if the value to output/input is not a simple field, you can define a function which handles i/o
typelist_bitmask	Specifies for which particle type the field is present, e.g. 1+2+8 => field present for particle types 0,1,3 (or use ALL_TYPES, GAS_ONLY,...)

Definition at line 66 of file io.cc.

◆ read_file_header()

virtual void read_file_header	(	const char *	fname,
		int	filenr,
		int	readTask,
		int	lastTask,
		long long *	nloc_part,
		long long *	npart,
		int *	nstart
	)

pure virtual

Implemented in fof_io< partset >, and snap_io.

◆ read_files_driver()

void read_files_driver	(	const char *	fname,
		int	rep,
		int	numfiles
	)

Definition at line 227 of file io.cc.

◆ read_header_fields()

virtual void read_header_fields ( const char * fname )

pure virtual

Implemented in fof_io< partset >, and snap_io.

◆ read_increase_numbers()

virtual void read_increase_numbers	(	int	type,
		int	n_for_this_task
	)

pure virtual

Implemented in fof_io< partset >, and snap_io.

◆ read_segment()

void read_segment	(	const char *	fname,
		int	type,
		long long	offset,
		long long	count,
		int	numfiles
	)

Definition at line 2166 of file io.cc.

◆ read_single_file_segment()

void read_single_file_segment	(	const char *	fname,
		int	filenr,
		int	type,
		long long	offset,
		unsigned long long	count,
		long long	storage_offset,
		int	numfiles
	)

Definition at line 2207 of file io.cc.

◆ set_filenr_in_header()

virtual void set_filenr_in_header ( int )

pure virtual

Implemented in fof_io< partset >, and snap_io.

◆ set_type_of_element()

virtual void set_type_of_element	(	int	index,
		int	type
	)

pure virtual

Implemented in fof_io< partset >, and snap_io.

◆ write_compile_time_options_in_hdf5()

void write_compile_time_options_in_hdf5 ( hid_t handle )

◆ write_header_fields()

virtual void write_header_fields ( hid_t )

pure virtual

Implemented in fof_io< partset >, and snap_io.

◆ write_multiple_files()

void write_multiple_files	(	char *	fname,
		int	numfilesperdump,
		int	append_flag = `0`,
		int	chunk_size = `0`
	)

Definition at line 700 of file io.cc.

Member Data Documentation

◆ header_buf

void* header_buf

Definition at line 174 of file io.h.

◆ header_size

size_t header_size

Definition at line 173 of file io.h.

◆ info

char info[100]

Definition at line 177 of file io.h.

◆ Max_IO_Fields

int Max_IO_Fields = 0

Definition at line 141 of file io.h.

◆ N_DataGroups

int N_DataGroups = 0

Definition at line 139 of file io.h.

◆ N_IO_Fields

int N_IO_Fields = 0

Definition at line 140 of file io.h.

◆ ntype_in_files

long long* ntype_in_files

Definition at line 176 of file io.h.

◆ type_of_file

enum file_contents type_of_file

Definition at line 187 of file io.h.

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

src/io/io.h
src/io/io.cc

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ IO_Def()

◆ ~IO_Def()

Member Function Documentation

◆ alloc_and_read_ntype_in_files()

◆ fill_file_header()

◆ find_files()

◆ get_base_address_of_structure()

◆ get_datagroup_name()

◆ get_filenr_from_header()

◆ get_type_of_element()

◆ init_field()

◆ read_file_header()

◆ read_files_driver()

◆ read_header_fields()

◆ read_increase_numbers()

◆ read_segment()

◆ read_single_file_segment()

◆ set_filenr_in_header()

◆ set_type_of_element()

◆ write_compile_time_options_in_hdf5()

◆ write_header_fields()

◆ write_multiple_files()

Member Data Documentation

◆ header_buf

◆ header_size

◆ info

◆ Max_IO_Fields

◆ N_DataGroups

◆ N_IO_Fields

◆ ntype_in_files

◆ type_of_file