HDF5: Allow Non-Collective, Parallel I/O#576
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ax3l merged 1 commit intoopenPMD:devfrom Oct 18, 2019
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Add a new environment variable, OPENPMD_HDF5_INDEPENDENT[=OFF], to control the MPI-parallel file I/O transfer. By default, this is collective which achieves the highest performance. But in case one wants to call `storeChunk` et al. in an independent manner, this can be handy to be changed.
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Add a new environment variable,
OPENPMD_HDF5_INDEPENDENT[=OFF], to control the MPI-parallel file I/O transfers.By default, this is collective which achieves the highest performance. But in case one wants to call
storeChunket al. in an independent manner, this can be handy to be changed.Should later on also be exposed via a
Seriesconstructor option, see #569Related to #554