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  1. Does Parallel HDF5 support shared libraries?

    Yes. (As of HDF51.8.15) hdf5 kbarticle parallel faq
    HDF Knowledge BaseJul 13, 2017
  2. What do you need to run Parallel HDF5?

    performance. faq hdf5 kbarticle parallel mpi … You need an MPI library with MPII/O support installed on your system. If you use the MPIO VFD, the HDF5 library will use MPII/O for data access so MPII/O must
    HDF Knowledge BaseDec 14, 2017
  3. Problems installing Parallel HDF5 on IBM Regatta (with AIX5)

    set up, you can proceed with the instructions mentioned above. faq hdf5 kbarticle parallel … 312 of ../../src/H5pubconf.h. Macro name H5PACKAGESTRING cannot be redefined. ... etc ... This indicates that the HDF5 library was being built with the wrong C
    HDF Knowledge BaseJul 13, 2017
  4. Does Parallel HDF5 support variable length datatypes?

    Currently, it does NOT. faq hdf5 kbarticle parallel datatypes
    HDF Knowledge BaseDec 14, 2017
  5. What if Parallel HDF5 tests fail with a ROMIO error: File locking failed in ADIOI_Set_lock ... ?

    . Unfortunately, this will require updating your programs and also updating the internal parallel HDF5 tests if you want them to succeed. The following steps … the info parameter in every call to H5Psetfaplmpio(). Most likely this parameter was set to MPIINFONULL. faq hdf5 kbarticle parallel
    HDF Knowledge BaseJul 13, 2017
  6. Parallel HDF5

    HDF Knowledge BaseNov 30, 2017
  7. parallelhdf5hints.pdf

    Parallel HDF5 Hints MuQun Yang & Quincey Koziol NCSA HDF group I. Some definitions According to HDF5 user’s guide 1, hyperslabs are portions of datasets … only need one IO access to the disk. Check 5 and the reference of that report for more information. II. Parallel HDF5 application software stacks Applications
  8. What happens if a process crashes when writing data in parallel?

    performance. With Parallel HDF5 objects are created collectively, and once created you can write to a dataset collectively or independently. As with the serial version … In general, HDF5 does not handle system crashes gracefully. If metadata has not been written to the file when a crash occurs, you can corrupt the file or lose
    HDF Knowledge BaseApr 18, 2018
  9. How is HDF5 different than HDF4

    File" drivers can be added to support new storage access mechanisms. HDF5 also supports MPIIO with Parallel HDF5. When building HDF5, parallel support is included by configuring with the enableparallel option. A tutorial for Parallel HDF5 is included with the HDF5 Tutorial. How do I....? ...convert software that uses
    HDF Knowledge BaseMay 01, 2019
  10. OpenMPI Build Issues

    on such an upgrade, the OpenMPI team has been made aware of the issues and they can be worked around in the meantime by switching to the ROMIO I/O backend. Parallel HDF5 As of HDF51.10.5, Parallel HDF5 is supported with OpenMPI. Please note that OpenMPI 3.0 has an issue handling datasets greater than 2 GB. There is a patch
    HDF Knowledge BaseOct 30, 2019