Zanhua

[BUG] VOL: Cannot Create and Write an Attribute at File Create Time

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# VOL: Cannot Create and Write an Attribute at File Create Time I am developing an HDF5 VOL and I can not create an attribute and write to it at...

H5Fget_access_plist does not return a valid faplid

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## Summary When using Cache Vol and Async Vol, it seems that `H5Fget_access_plist` does not return a valid faplid. The returned id is non-negative but seems not a property list....

Add PnetCDF Non-blocking APIs to Perform I/O

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TYPE: new feature KEYWORDS: parallel I/O, PnetCDF, non-blocking APIs, requests aggregation SOURCE: Zanhua Huang (Northwestern University), Wei-keng Liao (Northwestern University, @wkliao) DESCRIPTION OF CHANGES: Problem: We found that using [PnetCDF...

**Describe the issue** When developing [Log VOL](https://github.com/DataLib-ECP/vol-log-based), we encounter a problem that we cannot open a different file (say `exist.h5`) inside the read call back that handles a read request...