I see.  If it has C api interface, one can write cover verbs for
commonly used functions and should work as easy as python (albeit I
know almost nothing about python).

Сбт, 14 Июл 2012, Konrad Hinsen писал(а):
> bill lam writes:
> 
>  > On a cursory browse on that website, it seems that HDF5 is
>  > implemented using java, is it true?  Who will start java vm?  by the
>  > c wrapper or tarded by another process?
> 
> HDF5 is written in C. There's a Java wrapper (using JNI) and based on
> that wrapper the HDF Group has written a generic viewer for HDF5 files
> in Java, which is probably what you saw.
> 
> Using HDF5 from C or Fortran is a bit cumbersome, but it's a
> straightforward C API, just very big. When possible I prefer to use
> Python for working with HDF5 files, which is very easy.
> 
>  > BTW I think you cannot process a 60GB file using Jmf unless you also got
>  > at least 60GB RAM available.
> 
> Right, and that's why memory-mapping is not a universal solution for
> me.  I never read my HDF5 files entirely in memory either. HDF5 lets
> me read arbitrary subarrays, with roughly the same functionality as
> J's "from".
> 
> Konrad.
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