ewoksdata.data.hdf5.config.guess_chunk_shape#

ewoksdata.data.hdf5.config.guess_chunk_shape(data_shape, dtype, chunk_split=None, chunk_nbytes=None)[source]#

Try to guess the optimal chunk shape with these constraints: * Split any dimension for partial access * Below the maximal chunk size (1 MB by default, uncompressed)

The inner-most dimensions are split in chunk_split parts until chunk_nbytes is reached. The chunk size in the outer dimensions will be 1, unless the data size is too small.

Parameters:

  • data_shape (Tuple[NewType()(StrictPositiveIntegral, Integral)])

  • dtype (Union[dtype[Any], None, type[Any], _SupportsDType[dtype[Any]], str, tuple[Any, int], tuple[Any, Union[SupportsIndex, Sequence[SupportsIndex]]], list[Any], _DTypeDict, tuple[Any, Any]])

  • chunk_split (Optional[Integral])

  • chunk_nbytes (Optional[Integral])

Return type:

Optional[Tuple[NewType()(StrictPositiveIntegral, Integral)]]