HDF5 Property Lists, Properties and Property Values
Property List Class
	Property		Additional Description			Set/Get Call		Valid Values
		Parameter(s) or Flag(s)		Additional Description (where necessary)			Parameter
		HDF5 knobs that can be adjusted
File Creation Property Lists (FCPL)
	B-tree control parameter		Set/get size parameter controlling B-trees for indexing chunked datasets.			H5Pset_istore_k
						H5Pget_istore_k
		FCPL identifier					fcpl_id	Valid FCPL identifier Default: No default value
		B-tree control parameter		One-half the rank of chunked storage B-tree.			ik	Unsigned integer specifying one-half the rank of a tree that stores chunked raw data. Default: 32
	Sizes of object offsets and lengths		Set/get byte size of  offsets and lengths used to address objects in HDF5 file.			H5Pset_sizes
						H5Pget_sizes
		FCPL identifier					fcpl_id	Valid FCPL identifier Default: No default value
		Object offset					sizeof_addr	Unsigned integer specifying size, in bytes, of offsets used to address an object. 0 (zero) retains current setting. Default: sizeof(hsize_t) Normally 8 bytes
		Object length					sizeof_size	Unsigned integer specifying size, in bytes, of lengths used to address an object. 0 (zero) retains current setting. Default: sizeof(hsize_t) Normally 8 bytes
	Size of parameters to control symbol table nodes		Set/get size of parameters used to control symbol table nodes.			H5Pset_sym_k
						H5Pget_sym_k
		FCPL identifier					fcpl_id	Valid FCPL identifier Default: No default value
		Symbol table tree rank		Controls rank of symbol table tree for group; rank is twice the value of this setting.			ik	Unsigned integer specifying one-half of rank of symbol table tree. 0 (zero) retains current value. Default: 16
		Symbol table node size		Controls number of symbols that can be stored in symbol table node; rank is twice the value of this setting.			lk	Unsigned integer specifying one-half of number of symbols that can be stored in symbol table node. 0 (zero) retains current value. Default: 4
	Userblock size		Set/get size of userblock associated with an HDF5 file.			H5Pset_userblock
						H5Pget_userblock
		FCPL identifier					fcpl_id	Valid FCPL identifier Default: No default value
		Size of userblock					size	Unsigned integer specifying size of userblock in bytes. Must be power of 2 and equal to 512 or greater. Default: 0
	Shared object header message (SOHM) properties
	SOHM index configuration		Set/get shared object header message (SOHM) index configuration.			H5Pset_shared_mesg_index
						H5Pget_shared_mesg_index
		FCPL identifier					fcpl_id	Valid FCPL identifier Default: No default value
		Index to configure					index_num	Unsigned integer identifying index to be configured. Default: No default value
		Message types in index		Types of messages to be stored in index.			mesg_type_flags	H5O_SHMESG_SDSPACE_FLAG H5O_SHMESG_DTYPE_FLAG H5O_SHMESG_FILL_FLAG H5O_SHMESG_PLINE_FLAG H5O_SHMESG_ATTR_FLAG H5O_SHMESG_ALL_FLAG H5O_SHMESG_NONE_FLAG Default: H5O_SHMESG_NONE_FLAG
		Minimum message size					min_mesg_size	Unsigned integer specifying minimum message size for this index. Default: No default value
	Number of SOHM indexes		Set/get number of shared object header message (SOHM) indexes to be available in files.			H5Pset_shared_mesg_nindexes
						H5Pget_shared_mesg_nindexes
		FCPL identifier					fcpl_id	Valid FCPL identifier Default: No default value
		Number of indexes					nindexes	Unsigned integer specifying number of shared object header message indexes to be available in files. 0 (zero) disables shared object header messages. Default: No default value
	SOHM index storage phase change thresholds		Set/get phase change thresholds for SOHM index storage.			H5Pset_shared_mesg_phase_change
						H5Pget_shared_mesg_phase_change
		FCPL identifier					fcpl_id	Valid FCPL identifier Default: No default value
		Maximum list size threshold		Threshold above which storage of a SOHM index shifts from list to B-tree.			max_list	Unsigned integer specifying maximum number of SOHM indexes to be stored in a list. 0 (zero) sets SOHM index storage to B-tree, never reverting to list. Default: No default value
		Minimum B-tree size threshold		Threshold below which storage of a SOHM index reverts to list format.			min_btree	Unsigned integer specifying minimum number of SOHM indexes to be stored in a B-tree. Default: No default value
File Access Property Lists (FAPL)
	Align objects		Set/get alignment of objects larger than threshold size on specified boundaries in file.			H5Pset_alignment
						H5Pget_alignment
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Alignment threshold					threshold	Minimum size object to align. 0 (zero) forces all objects to be aligned. 1 implies no alignment. Default: 1
		Alignment boundary					alignment	Non-negative integer, preferably multiple of system block size. 1 turns alignment off. Default: 1
	Raw data chunk cache (RDCC) properties		Set/get chunk cache properties on per-file basis.			H5Pset_cache
						H5Pget_cache
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Deprecated parameter		No longer used.			mdc_nelmts	Any value passed is ignored. Default: No default value
		Number of elements in RDCC		Number of chunk slots in RDCC for this file.			rdcc_nslots	Non-negative integer. Default: 521
		Total size of RDCC		Total size of RDCC for this file.			rdcc_nbytes	Non-negative integer stating size in bytes. Default: 1MB per dataset
		Preemption policy		Chunk preemption policy for this file.			rdcc_w0	Real number between 0 (zero) and 1 (one), inclusive. Default: 0.75
	Maximum number of files held open		Set/get maximum number of files that can be held open in external link open file cache			H5Pset_elink_file_cache_size
						H5Pget_elink_file_cache_size
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		External link file cache size					efc_size	Unsigned integer specifying maximum number of files that can be held open. Default: 0 (zero)
	Garbage collection references flag		Set/get region reference garbage collection flag.			H5Pset_gc_references
						H5Pget_gc_references
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Region reference garbage collection flag					gc_ref	0 (OFF) 1 (ON) Default: 0
	Version bounds for HDF5 object formats		Set/get limits on versions of HDF5 format to be used when writing objects. Allows only the 'latest', H5F_LIBVER_LATEST, and 'earliest'', H5F_LIBVER_EARLIEST, boundaries; per-release limits not available.			H5Pset_libver_bounds
						H5Pget_libver_bounds
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Earliest version to be used					libver_low	H5F_LIBVER_EARLIEST H5F_LIBVER_18 H5F_LIBVER_LATEST Default: H5F_LIBVER_EARLIEST
		Latest version to be used					libver_high	H5F_LIBVER_18 H5F_LIBVER_LATEST Default: H5F_LIBVER_LATEST
	Metadata cache configuration		Set/get initial metadata cache configuration.			H5Pset_mdc_config
						H5Pget_mdc_config
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Pointer to struct of configuration settings					config_ptr	Valid pointer to H5AC_cache_config_t struct. Default: No default value
	Minimum metadata block size		Set/get minimum metadata block size. Valid only when H5FD_FEAT_AGGREGATE_METADATA has been set by a VFL driver.			H5Pset_meta_block_size
						H5Pget_meta_block_size
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Minimum metadata block size					size	Unsigned integer specifying minimum metadata block allocations in bytes. 0 (zero) turns off metadata aggregation. Default: 2048
	Maximum size of data sieve buffer		Set/get maximum size of data sieve buffer.			H5Pset_sieve_buf_size
						H5Pget_sieve_buf_size
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Maximum data sieve buffer size					size	Unsigned integer specifying maximum data sieve buffer size in bytes. 0 (zero) turns off data sieving. Default: 64KB
	Size of contiguous block reserved for small data		Set/get size of contiguous block reserved for contiguous storage of small data.			H5Pset_small_data_block_size
						H5Pget_small_data_block_size
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Size of shared contiguous block					size	Unsigned integer specifying size, in bytes, of shared contiguous block. 0 (zero) disables small data block mechanism. Default: 2048
	File close degree		Set/get how aggressively to close file when H5Fclose is called while object(s) in file remain open.			H5Pset_fclose_degree
						H5Pget_fclose_degree
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		File close degree		Level of aggression.			fc_degree	H5F_CLOSE_WEAK H5F_CLOSE_SEMI H5F_CLOSE_STRONG H5F_CLOSE_DEFAULT Defaults: For H5FD_MPIO driver: H5F_CLOSE_SEMI All other drivers: H5F_CLOSE_DEFAULT
	Drivers
	Core driver		Set/get use of core driver (H5FD_CORE).			H5Pset_fapl_core
						H5Pget_fapl_core
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Increment		Size of increment when memory is  increased.			increment	Unsigned integer indicating size, in bytes, of increment when memory must be increased. Default: No default value
		Backing store		Flag specifying whether file contents are ever written to disk.			backing_store	Boolean value indicating that file is never written to disk (0) or is written to disk (1) when file is closed or access to file terminates in memory. Default: 0
	Direct I/O driver		Set/get use of direct I/O driver (H5FD_DIRECT).			H5Pset_fapl_direct
						H5Pget_fapl_direct
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Memory alignment		Required alignment boundary in memory.			alignment	Unsigned integer specifying required boundary alignment in memory in bytes. Default: 4096 (4KB)
		File system block size		File system block size.			block_size	Unsigned integer indicating file system block size in bytes. 0 (zero) specifies HDF5 Library default value of 4KB. Default: 4096 (4KB)
		Copy buffer size		Copy buffer size.			cbuf_size	Unsigned integer specifying required copy buffer size in bytes. Default: 16777216 (16MB)
	Family driver		Set/get use of "family of files" driver (H5FD_FAMILY).			H5Pset_fapl_family
						H5Pget_fapl_family
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Member size		Size of each member file.			memb_size	Unsigned integer specifying size, in bytes, of each member file. Default: H5F_FAMILY_DEFAULT 4
		Member file access property list identifier		One file access property list identifier to be used with all family members.			memb_fapl_id	Valid file access property list identifier. Default: H5P_DEFAULT 1
	Log driver		Set up use of logging driver (H5FD_LOG). This is a standard POSIX driver (H5FD_SEC2) with logging capabilities.			H5Pset_fapl_log
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Log file		Name of file in which logging entries are to be recorded.			logfile	Valid filename with relative or absolute path. Default: No default value
		Logging flags		Flags specifying actions to be logged.			flags	Valid flag(s) for action(s) to be logged, as listed in H5Pset_fapl_log reference manual entry. Multiple flags expressed with logical OR and in parentheses. Default: No default value
		Buffer size		Size of logging buffers.			buf_size	Unsigned integer specifying size, in bytes, of logging buffers. Must be at least the maximum size, in bytes, of the file to be logged while the log driver is in use. Default: No default value
	MPI I/O driver		Set/get use of MPI I/O driver (H5FD_MPIO). Available only in parallel HDF5.			H5Pset_fapl_mpio
						H5Pget_fapl_mpio
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		MPI-2 communicator		MPI communicator to be used for file open.			comm	Valid MPI-2 communicator Default: No default value
		MPI-2 Info object		MPI Info object to be used for file open.			info	Valid MPI Info object Default: No default value
	MPI POSIX driver (removed from HDF5)		Set/get use of MPI POSIX driver (H5FD_MPIPOSIX). Removed from HDF5 ar Release 1.8.13.			H5Pset_fapl_mpiposix
						H5Pget_fapl_mpiposix
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		MPI-2 communicator		MPI communicator to be used for file open.			comm	Valid MPI-2 communicator Default: No default value
		Use of GPFS hints		Calls for use of GPFS hints.			use_gpfs_hints	Boolean value specifying whether to use GPFS hints: 0 (zero) for FALSE 1 (one) for TRUE Default: 0
	Multi driver		Set/get use of multi-file driver (H5FD_MULTI).			H5Pset_fapl_multi
						H5Pget_fapl_multi
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Memory usage map		Map memory usage types to other memory usage types.			mem_map	Array of H5FD_MEM_NTYPES entries, each either the value H5FD_MEM_DEFAULT or a memory usage type. Default: Array of H5FD_MEM_DEFAULT
		Memory usage types property list		Property list for each memory usage type.			mem_fapl	Array of property list for each memory usage type that will be associated with a file. Default: Array of H5P_DEFAULT 1
		Name generator		Name generator for names of member files.			memb_name	Array of printf-style strings, defined in the reference manual entry. Default: %s-X.h5
		Virtual address space offsets		Offsets within the virtual address space at which each type of data storage begins.			memb_addr	Array of unsigned integers from 0 (zero) to HADDR_MAX. Default: 0  (zero)
		Relaxed access		Allow read-only access to incomplete file sets.			relax	Boolean value specifying whether to allow read access to incomplete file sets: 0 (zero) for FALSE 1 (one) for TRUE Default: 0
	Sec2 driver		Set up use of sec2 driver (H5FD_SEC2), HDF5's default default driver and its standard POSIX-compliant driver.			H5Pset_fapl_sec2
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
	Split driver		Set up use of split driver (H5FD_SPLIT), a special case of the H5FD_MULTI driver.			H5Pset_fapl_split
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Metadata file extension					meta_ext	Valid string for use as filename extension. Default: No default value
		FAPL identifier for metadata file					meta_plist_id	Valid file access property list identifier. Default: H5P_DEFAULT 1
		Raw data file extension					raw_ext	Valid string for use as filename extension. Default: No default value
		FAPL identifier for raw data file					raw_plist_id	Valid file access property list identifier. Default: H5P_DEFAULT 1
	Standard I/O driver		Set up use of standard I/O driver (H5FD_STDIO).			H5Pset_fapl_stdio
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
	STREAM driver (removed from HDF5 and not to be included in table)					H5Pset_fapl_stream
						H5Pget_fapl_stream
	Windows I/O driver		Set up use of default HDF5 I/O driver for Windows systems (H5FD_WINDOWS). Supported only on Windows systems and the only HDF5 driver tested on Windows systems.			H5Pset_fapl_windows
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
	Offset for low-level access to file in family of files		Set offset of specific data in logical HDF5 file, enabling retrieval of file handle for relevant member of HDF5 family of files. Meaningful only if file is created as an HDF5 family of files (H5FD_FAMILY, H5Pset_fapl_family).			H5Pset_family_offset
						H5Pget_family_offset
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Offset within HDF5 file					offset	Unsigned integer specifying offset, in bytes, of data that user seeks within logical HDF5 file. Default: No default value
	Type of data to be accessed by multi driver		Set/get type of data to be accessed by H5FD_MULTI driver. Appropriate only with HDF5 files written as set of files with multi file driver, H5FD_MULTI.			H5Pset_multi_type
						H5Pget_multi_type
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Type of data		Type of data to be accessed. Specify exactly one: super block data, B-tree data, dataset raw data, global heap data, local heap data, or object header data.			type	H5D_MEM_SUPER H5D_MEM_BTREE H5D_MEM_DRAW H5D_MEM_GHEAP H5D_MEM_LHEAP H5D_MEM_OHDR Default: No default value
	Core driver write tracking properties		Set/get core driver write tracking properties.			H5Pset_core_write_tracking
						H5Pget_core_write_tracking
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Enable write tracking		Enable or disable write tracking.			is_enabled	1 (one) for ENABLED. 0 (zero) for DISABLED. Default: 0
		Write tracking page size		Page size.			page_size	Unsigned integer specifying page size in bytes. Preferably a power of 2. 1 (one) forces tracking with no paging. Default: No default value
	File image (core driver)		Set/get file image for working with a file in memory.			H5Pset_file_image
						H5Pget_file_image
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Buffer pointer		Pointer to initial file image.			buf_ptr	Valid pointer to file image. NULL if no initial file image. Default: NULL
		Buffer size		Size of supplied buffer.			buf_len	Valid buffer size in bytes. 0 (zero) if no initial file image. Default: 0
	File image callbacks (core driver)		Set/get callback functions for working with a file image in memory.			H5Pset_file_image_callbacks
						H5Pget_file_image_callbacks
		FAPL identifier					fapl_id	Valid FAPL identifier Default: No default value
		Callbacks pointer		Pointer to instance of H5_file_image_callbacks_t structure.			callbacks_ptr	Valid pointer to valid structure defining callback functions. Default: No default value
Object Creation Property Lists (OCPL)
	Track and index attribute creation order		Set/get tracking and indexing on attribute creation order.			H5Pset_attr_creation_order
						H5Pget_attr_creation_order
		OCPL identifier					ocpl_id	Valid OCPL identifier Default: No default value
		Creation order flags		Tracked or tracked-and-indexed			crt_order_flags	H5P_CRT_ORDER_TRACKED H5P_CRT_ORDER_INDEXED (Requires 'tracked'.) Default: Attribute creation order is neither tracked nor indexed.
	Attribute storage phase change properties		Set/get attribute storage phase change thresholds.			H5Pset_attr_phase_change
						H5Pget_attr_phase_change
		OCPL identifier					ocpl_id	Valid OCPL identifier Default: No default value
		Maximum number for compact storage		Maximum number of links to store in compact storage before converting group to dense format.			max_compact	Any unsigned integer. 0 (zero) forces compact storage to always be used. Default: 8
		Minimum number for dense storage		Minimum number of links to store in dense format before converting group to compact format.			min_dense	Any unsigned integer. Default: 6
	Recording of times associated with object		Recording of times associated with object.			H5Pset_obj_track_times
						H5Pget_obj_track_times
		OCPL identifier					ocpl_id	Valid OCPL identifier Default: No default value
		Track times		Track times associated with object.			track_times	TRUE -- Times are recorded. FALSE -- Times are not recorded. Default: FALSE
Object Copy Property Lists (OCPYPL)
	Object copy properties		Set/get properties governing object copying.			H5Pset_copy_object
						H5Pget_copy_object
		OCPYPL identifier					ocpypl_id	Valid OCPYPL identifier Default: No default value
		Copy options		Copy property settings.			copy_options	Valid flag(s) for copy property settings (below). Multiple flags are expressed with logical OR and in parentheses. Default: See below
				Recursive copy.				H5O_COPY_SHALLOW_HIERARCHY_FLAG Copy only immediate members of a group. Default: Recursively copy all objects in and below group.
				Soft link expansion.				H5O_COPY_EXPAND_SOFT_LINK_FLAG Expand soft links into new objects. Default: Copy soft links as unchanged soft links.
				External link expansion.				H5O_COPY_EXPAND_EXT_LINK_FLAG Expand external link into new objects. Default: Copy external links as unchanged external links.
				Copying references.				H5O_COPY_EXPAND_REFERENCE_FLAG Copy objects that are pointed to by references and update reference values in destination file. Default: Set reference values in destination file to zero (0).
				Copying attributes.				H5O_COPY_WITHOUT_ATTR_FLAG Copy object without copying attributes. Default: Copy object with all attributes.
				Matching shared committed datatypes.				H5O_COPY_MERGE_COMMITTED_DTYPE_FLAG Use matching committed datatype in destination file when copying committed datatype, dataset with committed datatype, or object with attribute of committed datatype. Default: If copied in single H5Ocopy operation, objects sharing committed datatype in source will share anonymous committed datatype in destination copy. Subsequent H5Ocopy operations will be unaware of prior anonymous committed datatypes.
	List of merged committed datatype paths		Add new path to list of paths in property list.			H5Padd_merge_committed_dtype_path.htm
		OCPYPL identifier					ocpypl_id	Valid OCPYPL identifier Default: No default value
		Path to be added.					path	Valid path where matching committed datatypes can be found in destination copy. Default: No default value
				Remove list of paths from property list.		H5Pfree_merge_committed_dtype_paths.htm
		OCPYPL identifier					ocpypl_id	Valid OCPYPL identifier Default: No default value
	H5Ocopy callback function		Set/get callback function for H5Ocopy to invoke before searching entire destination file for matching committed datatype.			H5Pset_mcdt_search_cb
						H5Pget_mcdt_search_cb
		OCPYPL identifier					ocpypl_id	Valid OCPYPL identifier Default: No default value
		User-defined H5Ocopy callback function					func	Valid user-defined callback function. Default: No callback function
		User-defined  callback function input data					op_data	User-defined callback function data. Default: No input data
Link Creation Property Lists (LCPL)
	Character encoding		Set/get character encoding used for link and attribute names.			H5Pset_char_encoding
						H5Pget_char_encoding
		LCPL identifier					lcpl_id	Valid LCPL or ACPL identifier Default: No default value
		Character encoding					encoding	H5T_CSET_ASCII (US ASCII) H5T_CSET_UTF8 (UTF-8 Unicode) Default: H5T_CSET_ASCII
	Create missing intermediate groups		Set/get create missing intermediate groups property when object is created at location that does not yet exist.			H5Pset_create_intermediate_group
						H5Pget_create_intermediate_group
		LCPL identifier					lcpl_id	Valid LCPL identifier Default: No default value
		Missing intermediate group creation flag		Flag specifying whether to create missing intermediate groups			crt_intermed_group	Positive value [ ON ] Non-positive value [ OFF ] Default: OFF
Link Access Property Lists (LAPL)
	External link traversal file access		Set/get file access settings in LAPL used to open files reached through external links. 3			H5Pset_elink_acc_flags
						H5Pget_elink_acc_flags
		LAPL identifier					lapl_id	Valid LAPL identifier Default: No default value
		External link traversal file access flags		Flags for setting file access when traversing external links.			flags	H5F_ACC_RDWR Open with read/write access. H5F_ACC_RDONLY Open with read-only access. H5F_ACC_DEFAULT File access flag settings taken from parent file. Default: H5F_ACC_DEFAULT
	External link callback function		Set/get external link traversal callback function 3			H5Pset_elink_cb
						H5Pget_elink_cb
		LAPL identifier					lapl_id	Valid LAPL identifier Default: No default value
		Callback function					func	User-defined external link traversal callback function. Default: No callback function
		Callback data					op_data	User-supplied data for callback function. Default: No user-supplied data
	FAPL for file accessed via external link		Set/get file access property list (FAPL) for use in accessing file pointed to by external link.			H5Pset_elink_fapl
		LAPL identifier					lapl_id	Valid LAPL identifier Default: No default value
		File access property list (FAPL) to use for files accessed through external links					fapl_id	Valid FAPL identifier Any file close degree property setting (H5Pset_fclose_degree) in this FAPL will be ignored. Default: File access identifier from existing LAPL
						H5Pget_elink_fapl
		LAPL identifier					lapl_id	Valid LAPL identifier Default: No default value
	Prefix to be applied to external link paths		Set/get prefix to be applied to external link paths.			H5Pset_elink_prefix
		LAPL identifier					lapl_id	Valid LAPL identifier Default: No default value
		Prefix for external link paths					prefix	Valid file system path to be prepended to filename stored in external link. Default: No prefix
						H5Pget_elink_prefix
		LAPL identifier					lapl_id	Valid LAPL identifier Default: No default value
		Prefix for external link paths					prefix	Valid file system path to be prepended to filename stored in external link. Default: No prefix
		Size of prefix					size	Size of string specifying prefix, with NULL terminator. Default: No default value
	Maximum number of soft or UD link  traversals		Set/get maximum number of allowed soft or user-defined link traversals.			H5Pset_nlinks
						H5Pget_nlinks
		LAPL identifier					lapl_id	Valid LAPL identifier Default: No default value
		Number of links		Maximum number of links that may be traversed.			nlinks	Unsigned integer specifying maximum number of allowed link traversals. Default: 16
Group Creation Property Lists (GCPL)
	Number of links and size of link names		Set/get estimated number lf links and length of link names. Accurate estimates will help reduce wasted file space.			H5Pset_est_link_info
						H5Pget_est_link_info
		GCPL identifier					gcpl_id	Valid GCPL identifier Default: No default value
		Number of links		Estimated number of links to be inserted into group.			est_num_entries	Unsigned integer specifying expected number of links. Default: No default value
		Length of link names		Estimated average length of link names.			est_num_len	Unsigned integer indicating expected average length of link names, in characters. Default: No default value
	Local heap size hint		Set/get anticipated maximum local heap size.			H5Pset_local_heap_size_hint
						H5Pget_local_heap_size_hint
		GCPL identifier					gcpl_id	Valid GCPL identifier Default: No default value
		Size hint		Anticipated maximum local heap size.			size_hint	Unsigned integer specifying anticipated maximum local heap size in bytes. 0 (zero) directs HDF5 Library to make reasonable estimate. Default: 88 bytes Estimate calculated by HDF5 Library
	Link creation order		Set/get tracking and indexing on link creation order.			H5Pset_link_creation_order
						H5Pget_link_creation_order
		GCPL identifier					gcpl_id	Valid GCPL identifier Default: No default value
		Link creation order flags		Tracked or tracked-and-indexed.			crt_order_flags	H5P_CRT_ORDER_TRACKED H5P_CRT_ORDER_INDEXED (Requires 'tracked'.) Default: Link creation order is neither indexed nor tracked.
	Link storage phase change		Set/get thresholds for conversion between compact and dense groups.			H5Pset_link_phase_change
						H5Pget_link_phase_change
		GCPL identifier					gcpl_id	Valid GCPL identifier Default: No default value
		Maximum number for compact storage		Maximum number of links to store as header messages in group header before converting group to dense format.			max_compact	Unsigned integer specifying maximum number of links for compact storage. Default: 8
		Minimum number for dense storage		Minimum number of links to store in dense format before converting group to compact format.			min_dense	Unsigned integer specifying minimum number of links for dense storage. Default: 6
	Gzip compression		Set/get gzip compression and compression level.			H5Pset_deflate
		GCPL identifier					gcpl_id	Valid GCPL identifier Default: No default value
		Compression level		Desired compression level . Setting compression level to 0 (zero) does not turn off use of gzip filter, but sets filter to perform no compression as it processes the data.			level	Unsigned integer 0 (zero) through 9: 0 -- No compression. 1 -- Best compression speed; least compression. 2 through 8 -- Compression improves; speed slows. 9 -- Best compression ratio; slowest speed. Default: No default value
	Fletcher32 error detection (checksum)		Set/get checksum error detection (Fletcher32)			H5Pset_fletcher32
		GCPL identifier					gcpl_id	Valid GCPL identifier Default: No default value
Dataset Creation Property Lists (DCPL)
	Allocation time		Set/get time at which to allocate dataset storage.			H5Pset_alloc_time
						H5Pget_alloc_time
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
		Allocation time					alloc_time	H5D_ALLOC_TIME_EARLY H5D_ALLOC_TIME_INCR H5D_ALLOC_TIME_LATE H5D_ALLOC_TIME_DEFAULT Default: H5D_ALLOC_TIME_DEFAULT
	Chunk size		Set/get chunk size.			H5Pset_chunk
						H5Pget_chunk
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
		Number of dimensions for each chunk					ndims	Number of dimensions in array dim. Must match rank of dataset. Default: No default value
		Array specifying chunk size					dim	Unsigned integer array defining chunk size in each dimension, in dataset elements. Default: No default value
	External storage and external file names		Set/get external storage property and add file to list of external files. First call sets external storage property and adds first file to list of external files. Subsequent calls add file as next file in list.			H5Pset_external
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
		External file name		Name of external file.			name	Name of external file. Default: No default value
		Data offset		Offset in file to beginning of data.			offset	Unsigned integer specifying offset, in bytes, from beginning of file to data location. If passed as NULL in 'get' call, value is not returned. Default: No default value
		Bytes reserved		Number of bytes reserved for data.			size	Unsigned integer specifying number of bytes reserved in external file for data. If passed as NULL in 'get' call, value is not returned. Default: No default value
						H5Pget_external
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
		External file index					idx	Value from 0 (zero) to N-1, where N is the value returned by H5Pget_external_count. Default: No default value
		External file name length					name_size	Length of name of external file. If passed as 0 (zero), value is not returned. Default: No default value
		External file name		Name of external file.			name	Name of external file.
		Data offset		Offset in file to beginning of data.			offset	Unsigned integer specifying offset, in bytes, from beginning of file to data location. If passed as NULL in 'get' call, value is not returned. Default: No default value
		Bytes reserved		Number of bytes reserved for data.			size	Unsigned integer specifying number of bytes reserved in external file for data. If passed as NULL in 'get' call, value is not returned. Default: No default value
	Retrieve number of external files		Retrieve number of external files associated with a dataset.			H5Pget_external_count		Number of external files returned  in function return value.
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
	Dataset layout		Set/get dataset layout.			H5Pset_layout
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
		Layout		Flag specifying compact, contiguous, or chunked storage layout.			layout	H5D_COMPACT H5D_CONTIGUOUS H5D_CHUNKED Default: H5D_CONTIGUOUS
						H5Pget_layout		Layout returned as H5Pget_layout return value.
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
	Fill time		Set/get timing for writing fill values to data.			H5Pset_fill_time
						H5Pget_fill_time
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
		Fill time		Time at which to write fill values.			fill_time	H5D_FILL_TIME_IFSET H5D_FILL_TIME_ALLOC H5D_FILL_TIME_NEVER Default: H5D_FILL_TIME_IFSET
	Fill value		Set/get value to be used for fill value in data.			H5Pset_fill_value
						H5Pget_fill_value
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
		Fill value datatype					type_id	Valid datatype identifier for suitable datatype. Datatype may differ from dataset datatype, but HDF5 must be able to convert value to dataset datatype at dataset creation. Default: Dataset datatype specified at creation
		Fill value					value	Valid pointer to buffer containing desired value. Default: 0 (zero)
	Gzip compression		Set gzip compression (H5Z_FILTER_DEFLATE) and compression level.			H5Pset_deflate
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
		Compression level		Desired compression level . Setting compression level to 0 (zero) does not turn off use of gzip filter, but sets filter to perform no compression as it processes the data.			level	Unsigned integer 0 (zero) through 9: 0 -- No compression. 1 -- Best compression speed; least compression. 2 through 8 -- Compression improves; speed slows. 9 -- Best compression ratio; slowest speed. Default: No default value
	Fletcher32 error detection (checksum)		Set checksum error detection (H5Z_FILTER_FLETCHER32).			H5Pset_fletcher32
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
	N-bit filter		Set up use of n-bit filter (H5Z_FILTER_NBIT).			H5Pset_nbit
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
	Scale-offset filter		Set up use of scale-offset filter (H5Z_FILTER_SCALEOFFSET). Risk of unintentional lossy compression; see reference manual entry.			H5Pset_scaleoffset
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
		Compression method					scale_type	H5Z_SO_FLOAT_DSCALE H5Z_SO_INT Default: No default value
		Scale factor					scale_factor	H5Z_SO_FLOAT_DSCALE H5Z_SO_INT H5Z_SO_INT_MINBITS_DEFAULT Default: No default value
	Shuffle filter		Set up use of shuffle filter (H5Z_FILTER_SHUFFLE).			H5Pset_shuffle
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
	SZIP filter		Set up use of SZIP filter (H5Z_FILTER_SZIP). Review "Limitations" section in RM entry before using.			H5Pset_szip
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
		Entropy coding or nearest neighbor coding as an unsigned integer bit mask					options_mask	Unsigned integer bit mask specifying one of: H5_SZIP_EC_OPTION_MASK H5_SZIP_NN_OPTION_MASK Default: No default value
		Number of data elements (pixels 2) per compression block					pixels_per_block	Unsigned integer specifying number of data elements (pixels 2 ) per block. Even integer greater than 0 and not exceeding 32. Default: No default value
	Number of filters associated with DCPL		Query number of filters set on a dataset creation property list (DCPL). Number of filters returned in function return value.			H5Pget_nfilters		Number of filters returned as function return value.
		DCPL identifier					dcpl_id	Valid DCPL identifier Default: No default value
Dataset Access Property Lists (DCPL)
	Raw data chunk cache (RDCC) properties		Set/get chunk cache properties on per-dataset basis.			H5Pset_chunk_cache
						H5Pget_chunk_cache
		DAPL identifier					dapl_id	Valid DAPL identifier Default: No default value
		Number of elements in RDCC		Number of chunk slots in RDCC for this dataset.			rdcc_nslots	Non-negative integer. If passed as NULL in 'get' call, value is not returned. Default: 521
		Total size of RDCC		Total size of RDCC for this dataset.			rdcc_nbytes	Non-negative integer stating size in bytes. If passed as NULL in 'get' call, value is not returned. Default: 1024
		Preemption policy		Chunk preemption policy for this dataset.			rdcc_w0	Real number between 0 (zero) and 1 (one), inclusive. If passed as NULL in 'get' call, value is not returned. Default: 0.75
Dataset Transfer Property Lists (DXPL)
	Btree ratios		Set/get B-tree split ratios.			H5Pset_btree_ratios
						H5Pget_btree_ratios
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Left-most nodes		Split ratio for left-most node at a level.			left	Real number between 0 (zero) and 1 (one), inclusive. Default: 0.1
		Right-most nodes		Split ratio for right-most node at a level.			middle	Real number between 0 (zero) and 1 (one), inclusive. Default: 0.5
		All other nodes		Split ratio for all other nodes at a level.			right	Real number between 0 (zero) and 1 (one), inclusive. Default: 0.9
	Buffer properties		Set/get type conversion and background buffers.			H5Pset_buffer
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Size of buffer					size	Must be large enough to accommodate complete slice that encompasses all but first dimension. Default: 1MB
		Conversion buffer					tconv	Valid void pointer to conversion buffer. Default: No conversion buffer
		Background buffer					bkg	Valid void pointer to background buffer. Default: No background buffer
						H5Pget_buffer
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Conversion buffer					tconv	Valid void pointer to conversion buffer. Default: No conversion buffer
		Background buffer					bkg	Valid void pointer to background buffer. Default: No background buffer
	Data transform expression		Set/get transform expression to be used upon reading a dataset. Null-terminated string containing an algebraic expression, such as '(5/9.0)*(x-32)' or 'x*(x-5)'.			H5Pset_data_transform
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Transform expression		Pointer to null-terminated data transform expression.			expression	Valid pointer to buffer containing transform expression. Default: No transform expression
						H5Pget_data_transform
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Transform expression					expression	Valid pointer to buffer containing transform expression. Default: No transform expression
		Size of transform expression					size	Size in bytes of transform expressioin to copy to. Default: No default value
	Data transfer mode (application level)		Set/get collective or independent I/O mode with MPI at application level.			H5Pset_dxpl_mpio
						H5Pget_dxpl_mpio
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Transfer mode flag					xfer mode	H5FD_MPIO_INDEPENDENT (Independent I/O) H5FD_MPIO_COLLECTIVE (Collective I/O) Default: H5FD_MPIO_INDEPENDENT
	Data transfer mode (internally in HDF5)		Set flag for HDF5-internal use of collective or independent I/O. For use only when H5FD_MPIO_COLLECTIVE has been set (H5Pset_dxpl_mpio).			H5Pset_dxpl_mpio_collective_opt
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Optimization flag					opt_mode	H5FD_MPIO_INDEPENDENT_IO (Independent I/O) H5FD_MPIO_COLLECTIVE_IO (Collective I/O) Default: H5FD_MPIO_COLLECTIVE_IO
	Linked-chunk and multi-chunk I/O		Set linked-chunk I/O or multi-chunk I/O.			H5Pset_dxpl_mpio_chunk_opt
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Optimization flag					opt_mode	H5FD_MPIO_CHUNK_ONE_IO Single linked-chunk operation. H5FD_MPIO_CHUNK_MULTI_IO Multi-chunk operation. Default: Selected by HDF5 Library
	Linked-chunk I/O threshold count		Set threshold count over which linked-chunk I/O is to be performed.			H5Pset_dxpl_mpio_chunk_opt_num
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Numeric threshold		Numeric threshold for performing linked-chunk I/O.			num_chunk_per_proc	Unsigned integer specifying count threshold. Default: No default value
	Linked-chunk I/O threshold ratio		Set threshold ratio over which linked-chunk I/O is to be performed.			H5Pset_dxpl_mpio_chunk_opt_ratio
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Percent threshold		Percent threshold for performing linked-chunk I/O.			percent_chunk_per_proc	Unsigned integer, between 0 (zero) and 100 inclusive, specifying percent threshold . Default: No default value
	Multi driver for I/O access		Set/get use of multi-file driver (H5FD_MULTI) for each memory usage type. Requires that H5FD_MULTI driver be set (H5Pset_fapl_multi)			H5Pset_dxpl_multi
						H5Pget_dxpl_multi
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Member file DXPLs		Array of data access property lists.			memb_dxpl	Array of dataset access property lists per memory type. Default: H5P_DEFAULT for each element
	Checksum error checking		Enable or disable error detection (Fletcher32 checksum) when reading data. Requires that error checking is set (H5Pset_fletcher32).			H5Pset_edc_check
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Enable/Disable flag		Flag specifying whether to enable or disable error detection.			check	H5Z_ENABLE_EDC H5Z_DISABLE_EDC Default: H5Z_ENABLE_EDC
						H5Pget_edc_check		Setting returned in function return value.
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
	Filter callback function		Set user-defined filter callback function.			H5Pset_filter_callback
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		User-defined filter callback function					func	Valid user-defined callback function. Default: No user-defined callback function
		User-defined  callback function input data					op_data	User-defined callback function data. Default: No user-defined input data
	Number of I/O vectors for hyperslab I/O		Set/get number of I/O vectors to accumulate before being issued for lower-level I/O			H5Pset_hyper_vector_size
						H5Pget_hyper_vector_size
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Number of vectors to accumulate		Number of I/O vectors to accumulate in memory before issuing for lower-level reading or writing of actual data.			vector_size	Number of I/O vectors to accumulate in memory for I/O operations. Must be greater than 1 (one). Default: 1024
	Preserve status of partial compound type writes		Preserve read or write status when destination compound datatypes are partially initialized. Functions deprecated because this status is now always preserved.			H5Pset_preserve
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		Status					status	TRUE -- Status preserved. FALSE -- Status not preserved. Default: FALSE
						H5Pget_preserve
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
	Datatype conversion callback function		Set/get datatype conversion callback function.			H5Pset_type_conv_cb
						H5Pget_type_conv_cb
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		User-defined datatype conversion callback function					func	Valid user-defined callback function. Default: No user-defined callback function
		User-provided data for callback function					op_data	User-defined callback function data. Default: No user-defined input data
	Memory manager for VL datatype allocation		Set/get memory manager for variable-length (VL) datatype allocation.			H5Pset_vlen_mem_manager
						H5Pget_vlen_mem_manager
		DXPL identifier					dxpl_id	Valid DXPL identifier Default: No default value
		User-defined allocation routine					alloc	User-defined allocation routine. NULL for system malloc. Default: No user-defined allocation routine
		Extra parameter that wil be passed to user-defined allocation routine					alloc_info	Extra parameter to be passed to allocation routine. Ignored if routine is NULL. Default: No suppementary data
		User-defined free routine					free	User-defined free routine. NULL for system free. Default: No user-defined free routine
		Extra parameter that will be passed to user-defined free routine					free_info	Extra parameter to be passed to free routine. Ignored if routine is NULL. Default: No supplementary data
Attribution Creation Property Lists (ACPL)
	Character encoding		Set/get character encoding used for link and attribute names.			H5Pset_char_encoding
						H5Pget_char_encoding
		ACPL identifier					acpl_id	Valid ACPL or LCPL identifier Default: No default value
		Character encoding					encoding	H5T_CSET_ASCII (US ASCII) H5T_CSET_UTF8 (UTF-8 Unicode) Default: H5T_CSET_ASCII
	Footnotes
	1	H5P_DEFAULT is HDF5's default property list for the appropriate class. For example, in a file access property list (FAPL) context, H5P_DEFAULT would represent the default FAPL.
	2	Pixel is SZIP terminology referring, in this context, to an HDF5 data element.
	3	An external link traversal callback function set by H5Pset_elink_cb can override access settings from H5Pset_elink_acc_flags.
	4	H5F_FAMILY_DEFAULT is the default size of member files for the family driver.
	Development notes (Delete before publication)
		H5Pset_scale_offset: The parameter value H5Z_SO_FLOAT_ESCALE is not implemented.
		H5Pget_sizes: Will "Normally 8 bytes" change when address space changes (anticipated for 1.10)?
		H5Pset_fapl_log: In "Maximum size, in bytes, of the file to be logged", is that the size of the 'logfile' or of the file being accessed?
		H5Pset_fapl_multi: Deprecation status?
		H5Pset_fapl_split:                  "
		H5Pset_dxpl_multi:                "
		H5Pset_multi_type:               "
		H5Pset_fapl_multi: Need help with what to say for this function (or its parameters).
		For the above MULTI driver functions, should we say they're deprecated (the very miniumum) or just not include them at all?
		And should the STREAM driver properties  be listed?
		In both cases, the issue is that while these functions are no longer in the library, users may continue to run across files containing obects written with the properties.