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HDF Newsletter 45

October 19, 1999

CONTENTS

  • Release of HDF5-1.2.0

  • Release of HDF5-1.2.0

    HDF5 version 1.2.0 is now available. You can download this from the NCSA ftp server at:
        ftp://ftp.ncsa.uiuc.edu/HDF/HDF5/current/
    
    The HDF5 home page is located at:
        http://hdf.ncsa.uiuc.edu/HDF5/
    
    The HDF5-1.2.0 documentation is included with the source code and can be downloaded from the NCSA ftp server at:
        ftp://ftp.ncsa.uiuc.edu/HDF/HDF5/docs/
    

    New Features and Changes

    Datatypes

    Dataspaces

    Persistent Pointers

    Parallel Support

    Debugging

    Configuration

    Documentation

    Tools

    New API functions

      Property List Interface:
      ------------------------
    
      H5Pset_xfer          - set data transfer properties
      H5Pset_preserve      - set dataset transfer property list status 
      H5Pget_preserve      - get dataset transfer property list status
      H5Pset_hyper_cache   - indicates whether to cache hyperslab blocks during I/O
      H5Pget_hyper_cache   - returns information regarding the caching of 
                             hyperslab blocks during I/O
      H5Pget_btree_ratios  - sets B-tree split ratios for a dataset 
                             transfer property list
      H5Pset_btree_ratios  - gets B-tree split ratios for a dataset
                             transfer property list
      H5Pset_vlen_mem_manager - sets the memory manager for variable-length 
                                datatype allocation
      H5Pget_vlen_mem_manager - sets the memory manager for variable-length
                                datatype allocation
    
      Dataset Interface:
      ------------------
    
      H5Diterate           - iterate over all selected elements in a dataspace
      H5Dget_storage_size  - return the amount of storage required for a dataset
      H5Dvlen_reclaim      - reclaim VL datatype memory buffers
    
      Dataspace Interface:
      --------------------
      H5Sget_select_hyper_nblocks   - get number of hyperslab blocks
      H5Sget_select_hyper_blocklist - get the list of hyperslab blocks 
                                      currently selected
      H5Sget_select_elem_npoints    - get the number of element points 
                                      in the current selection
      H5Sget_select_elem_pointlist  - get the list of element points 
                                      currently selected
      H5Sget_select_bounds          - gets the bounding box containing 
                                      the current selection
    
      Datatype Interface:
      -------------------
      H5Tget_super         - return the base datatype from which a 
                             datatype is derived
      H5Tvlen_create       - creates a new variable-length dataype
      H5Tenum_create       - creates a new enumeration datatype
      H5Tenum_insert       - inserts a new enumeration datatype member
      H5Tenum_nameof       - returns the symbol name corresponding to a 
                             specified member of an enumeration datatype
      H5Tvalueof           - return the value corresponding to a 
                             specified member of an enumeration datatype 
      H5Tget_member_value  - return the value of an enumeration datatype member
      H5Tset_tag           - tags an opaque datatype
      H5Tget_tag           - gets the tag associated with an opaque datatype
    
      Identifier Interface:
      ---------------------
      H5Iget_type          - retrieve the type of an object
    
      Reference Interface:
      --------------------
      H5Rcreate            - creates a reference
      H5Rdereference       - open the HDF5 object referenced
      H5Rget_region        - retrieve a dataspace with the specified region selected
      H5Rget_object_type   - retrieve the type of object that an 
                             object reference points to
    
      Ragged Arrays (alpha) (names of those API functions were changed):
      ------------------------------------------------------------------
      H5RAcreate	       - create a new ragged array (old name was H5Rcreate)
      H5RAopen	       - open an existing array    (old name was H5Ropen)
      H5RAclose	       - close a ragged array      (old name was H5Rclose)
      H5RAwrite	       - write to an array         (old name was H5Rwrite)
      H5RAread	       - read from an array        (old name was H5Rread)
    
    
    

    Platforms Tested

      AIX 4.3.2 (IBM SP)            3.6.6
      Cray J90 10.0.0.6             cc 6.3.0.0
      Cray T3E 2.0.4.61             cc 6.2.1.0
                                    mpt.1.3
      FreeBSD 3.2                   gcc 2.95.1
      HP-UX B.10.20                 HP C  HP92453-01 A.10.32
                                    gcc 2.8.1
      IRIX 6.5                      MIPSpro cc 7.30
      IRIX64 6.5 (64 & n32)         MIPSpro cc 7.3.1m
                                    mpt.1.3 (SGI MPI 3.2.0.0)
      Linux 2.2.10                  egcs-2.91.66               configured with
                                                             --disable-hsizet
                                                               lbraries: glibc2
      OSF1 V4.0                     DEC-V5.2-040
      SunOS 5.6                     cc WorkShop Compilers 4.2  no optimization
                                    gcc 2.8.1
      SunOS 5.7                     cc WorkShop Compilers 5.0
                                    gcc 2.8.1
      TFLOPS 2.7.1                  cicc (pgcc Rel 3.0-4i)
                                    mpich-1.1.2 with local changes
      Windows NT4.0 intel           MSVC++ 5.0 and 6.0
      Windows NT alpha 4.0          MSVC++ 5.0
      Windows 98                    MSVC++ 5.0
    

    Known Problems