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As @rabernat pointed out [here](https://github.com/rabernat/zarr_hdf_benchmarks/blob/master/plot_all_results.ipynb), there's a performance hit when using pre-built libraries from `conda` on Cheyenne.
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In recent week's we've improved handling of `h5py` files considerably. Much of this logic can transfer over to `PyTables` trivially. Given the Pandas-PyTables connection supporting this is likely va…
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## 1) Bug
It looks like we are having issues with parallel IO in the latest dev branch
### Steps to Reproduce
When I run the MPI demo:
```python
OSError: Can't prepare for writing data (Paralle…
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Apparently, `h5py` files do not support indexing in the form `indexable[np.array([0, 0, 1, 1]), ...]` because of the duplicates:
```
data[indices] = indexable[numpy.array(request)[indices], ...]
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I have been working on implementing async h5py as a project in [GSoC 2022](https://summerofcode.withgoogle.com/), which can use the new asynchronous IO interface HDF5 provided by HDF5 1.13+ and the [a…
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I would like to have the functionality of the [H5DOappend] (https://support.hdfgroup.org/HDF5/doc/HL/RM_HDF5Optimized.html#H5DOappend) function added to the h5py library. Usage would be similar to the…
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## Motivation
- Make memory requirements predictable
- Reduce datasets processing failure due to OOM
## Definition of Done
- Validate and write datasets in constant memory
- eliminate the u…
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```
(base) [yfeng1@waterfall nbodykit]$ rebuild_halo_table_cache_log.py
Number of files detected in standard cache location = 1
Each of these files must be opened, and the metadata will be ch…
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While running "pip install -r requirements.txt". "pip install h5py" worked ok though...
```
In file included from /root/git/torch-rnn/.env/local/lib/python2.7/site-packages/numpy/core/include…
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### Actual Behavior
The latest h5py version in defaults in 2.10. The upstream h5py project has since reached 3.x (https://docs.h5py.org/en/latest/whatsnew/3.0.html)
The recent upstream release o…