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  1. H5P_SET_GC_REFERENCES

    collection is off, however, and the user reuses a reference, the previous heap block will be orphaned and not returned to the free heap space. When garbage collection … : H5PSETGCREFERENCES sets the flag for garbage collecting references for the file. Dataset region references and other reference types use space in an HDF5 file's
    HDF5Jul 25, 2019
  2. Datatypes

    requires more space than regular raw data storage. Heap access generally reduces I/O efficiency because it requires individual read or write operations for each … . A dataset (the H5D interface) is composed of a collection or raw data points of homogeneous type organized according to the data space (the H5S interface
    HDF5Sep 13, 2019
  3. H5P_SET_LOCAL_HEAP_SIZE_HINT

    to allocate contiguous local heap space in the file for each group created with gcplid. For groups with many members or very few members, an appropriate initial … . To intelligently allocate space and to avoid unnecessary fragmentation of the local heap, it can be valuable to provide the library with a hint as to the local
    HDF5Aug 06, 2019
  4. RFC-references-2018-07-12-v7.pdf

    actually stored at write time in the allocated disk space is the encoded ID that points to the entry in the global heap (i.e., the address of the collection … collection . . . Serialized reference . . . File Space Heap ID Dataset with references Figure 1 – Disk representation of an HDF5 variable length reference. 4.3
    HDF5 / … / Update to HDF5 References API RFCAug 19, 2019
  5. RFC-references-2018-07-12-v5.pdf

    ) using the H5HG insert() routine. What gets actually stored in the allocated disk space is the encoded ID that points to the entry in the global heap (i.e … . . . Serialized reference . . . File Space Heap ID Dataset with references Figure 1 – Disk representation of an HDF5 variable length reference. VOL Integration
    HDF5 / … / Update to HDF5 References API RFCApr 04, 2019
  6. HDF5_File_Format_Specification_Version-3.0.pdf

    Format: Level 1F Global Heap Block for Virtual Datasets F. Disk Format: Level 1G Fractal Heap G. Disk Format: Level 1H Free space Manager H. Disk Format: Level 1I … Object Header Messages (Subtype 0 Message in Heap) byte byte byte byte Message Location This space inserted only to align table nicely Hash Reference Count
    HDF5 / … / File Format SpecificationJan 18, 2019
  7. HDF5_File_Format_Specification_Version-3.0.pdf

    Format: Level 1F Global Heap Block for Virtual Datasets F. Disk Format: Level 1G Fractal Heap G. Disk Format: Level 1H Free space Manager H. Disk Format: Level 1I … Object Header Messages (Subtype 0 Message in Heap) byte byte byte byte Message Location This space inserted only to align table nicely Hash Reference Count
    HDF5 / … / File Format Specification PDFJan 18, 2019
  8. DataFlow_H5Dread.pdf

    Using memory in the application’s memory space (heap) that is managed by the HDF5 library, the HDF5 library computes the checksum for the current chunk … memory space (heap) that is managed by the HDF5 library, the DEFLATE filter is reversed and the current chunk is uncompressed. 3.3 Step 3: Put chunk in cache
    HDF5 / … / Advanced Topics in HDF5Aug 22, 2017
  9. Users_Guide.pdf

    Subsetting and Hyperslabs ................................................................................... 145 5.5. Allocation of Space in the File … .......................................................... 149 5.5.2. Deleting a Dataset from a File and Reclaiming Space
    HDF5 / … / HDF5 User's Guide in PDFJul 02, 2019
  10. HDF5 Data Flow Pipeline for H5Dread

    in the application’s memory space (heap) that is managed by the HDF5 library, the HDF5 library computes the checksum for the current chunk and compares it to the saved value … memory in the application’s memory space (heap) that is managed by the HDF5 library, the DEFLATE filter is reversed and the current chunk is uncompressed. 3.3 Step
    HDF5Aug 30, 2017