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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