Filters plugin capability

[halehawk]

I'd like to know if vol-async can be used with another HDF5_PLUGIN_PATH, such as filters of HDF5 together. For example, I create a H5P and set_chunk and set_deflate, then use with vol-async to write out. Thanks!

[houjun]

Yes, it should work.

[halehawk]

Do you have a similar example to show?

[houjun]

I just added a test: async_test_compression.c

[halehawk]

Thank you @houjun, your compression test works fine on serial mode, do you happen to know if it works on parallel mode?

[halehawk]

I figured out how to add compression to vol-async parallel tests. But I cannot run h5dump on the generated h5 file successfully. It is always hanging there. This h5dump comes from the hdf5 that I compiled with vol-async. If I use a hdf5 version that's not compiled with vol-async, it can dump out but with some errors, such as being unable to load vol obj or can't find plugin.

[houjun]

Can you try export HDF5_VOL_CONNECTOR="" before h5dump? No need to use vol-async with the HDF5 tools.