Yes, at this point there is no support for complex type in Fortran and in C. We
are planning to add it in 1.10.* along with other C99 types that currently are
not supported.
Elena
On Dec 10, 2010, at 12:06 PM, Mark Miller wrote:
> Just curious...A complex number is sort of native to the Fortran
> language. Are we saying there is no 'native' support in HDF5 for
> Fortran's complex type?
>
> Mark
>
> On Fri, 2010-12-10 at 07:56, Francesc Alted wrote:
>> A Friday 10 December 2010 16:39:48 Roger Martin escrigué:
>>> Hi,
>>>
>>> What is a good way to store arrays of complex numbers?
>>
>> There is not a standard way (it would be nice if there was one). The
>> usual thing is to save them as a compound datatype, but people choose
>> different options for the names of the fields. Here are what I know:
>>
>> * ("real", "imag") for Octave
>> * ("r", "i") for PyTables (but ("real", "imag") is ok too)
>>
>>> Particularly MKL (Intel^® Math Kernel Library) has a data type
>>> MKL_Complex16 which is two doubles side by side and I make very large
>>> arrays of them.
>>
>> May be there is a possibility to define an atomic datatype in HDF5, but
>> provided that you don't introduce padding between the fields of the
>> compound type, this works pretty similar to a larger, atomic type.
>>
>> Hope this helps,
> --
> Mark C. Miller, Lawrence Livermore National Laboratory
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> [email protected] urgent: [email protected]
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