On Wed, 4 Jun 2003, Thomas Radke wrote: > > > I'd start without these complexities in the hdf5 module, as you can > > > do nearly all of this stuff within your dx program. > > > > I agree with Richard. A module is going to be easier to use. > > Well, not necessarily. Sure, if people aren't interested in the hyperslabbing > features then they don't need to care about them. It's up to the import > module to provide sensible defaults for those parameters so that the module > does what people expect it to do, without much fiddling around. > > But it is essential for us to have the hyperslabbing functionality already > integrated in the import module (and not having to use the Slab module) > because our datasets might simply be too large to fit in memory.
Yes, I also think hyperslabbing is essential. > > This summer we will be working intensly for roughly a month on our > > package. We will let you know of our advances. Please keep us posted > > too. Thank you for sharing your ideas! > > Thanks to you for this discussion ! > > Let me finally come back to the question of merging our efforts of developing > a general HDF5 data import module which fits peoples' needs (for their unigrid > data at least), and make it eventually available to the main distribution of > OpenDX. Do you think that's possible ? I think its badly needed to have "basic" hdf5 in OpenDX. And I believe we can create a module that fits all our needs, if with some surrounding DX macros, though. Of course individual modules will fit our individual needs better, but even building those on a common base will help everyone. > As I see it the biggest issue here isn't of technical nature (we almost agreed > on a common file layout) but rather what license should be used for such a > module. > For your dxhdf5 package you use a special UoC license, Richard has the > Academic > Free License, and I'm using GPL for the OpenDXutils package. Well - if I work on the hdf5 module during my work, I need to interrogate with the german science foundation about the license (I assume the same is technically true for you, Tomas?) - last time they said only academic/research use is ok. Personally I'm fine with even LGPL - but compatibility with the OpenDX license should be important. > Any chance of finding a solution which works for everyone (not just for us > from > "Good Old Europe") ? At least people form "Good Old Europe" may meet easily. I know at least 4 persons in Tuebingen using either hdf5 or even Cactus, three of them involved with the Gravitationswellen Transregio (not me). I think we in Tuebingen would be able to invite two persons for a week (of course we need to find about possible license issues again here, as that would be sponsored by the German science foundation again...). Richard.
