Peter Lindstrom

I would suggest essentially duplicating the current [zfp API](https://zfp.readthedocs.io/en/release1.0.0/high-level-api.html#compression-parameters) for querying these parameters. It's probably not a good idea for the `H5Z_zfp` functions to do this in a slightly different...

> You mean for querying an already compressed dataset? Well, yes, but more generally getting a `zfp_config` struct from a `zfp_stream`. The C++ compressed-array class API allows you to set...

> > It's probably not a good idea for the `H5Z_zfp` functions to do this in a slightly different way. > > In this comment, were you basically speaking to...

@markcmiller86 Just to make sure I understand how this is supposed to work, since the caller presumably does not already know what `mode` is, you should call `H5Pget_zfp` to first...

In addition to querying compression parameter settings through the library, it would be nice to have a command-line tool that decodes `cd_values`, i.e., that performs the inverse of what `print_h5repack_farg`...

I think I agree with all of the above. There are some other potential improvements, such as support for querying the compression parameters previously used during compression (#105), support for...

@markcmiller86 zfp does not (yet) support OpenMP decompression. For other than fixed-rate mode, this will require encoding additional information on where in the variable-rate stream blocks reside. We are actively...

@markcmiller86 Just to be sure we're on the same page, parallel (de)compression makes sense for all compression modes, although currently not all combinations are supported. Thanks to @LennartNoordsij, we now...

@lferraro We do have such an [experimental branch](https://github.com/LennartNoordsij/zfp/tree/feature/omp_decompress), though we're still iterating with @LennartNoordsij on the API. It's possible/likely that the API will take a different form when this capability...

> Think we also need someone to approve GHA so that it can run > > @lindstro would you be able to help with that? 🙂 @jakirkham I'm happy to...