Manolis Papadakis

> Right, using H5Dwrite_chunk would work but we wouldn't get the performance of KvikIO/GDS since HDF5 itself would do the writing. Also, H5Dwrite_chunk isn't thread-safe. Is it possible to preallocate...

> Yes, this is exactly what I mean in step 5: Translate the metadata into a set of data blocks (file, offset, size). Yup, my bad, I didn't read that...

We can ask Legate to run only one copy of the task which processes the HDF5 metadata (i.e. not replicated across the cluster), then broadcast the results to the other...

That's a good point. We could do a similar singleton task launch that updates the metadata based on the status reports of the parallel readers/writers, but I guess that depends...

Hi @devinamatthews, is TBLIS over BLIS available to try out yet?

Some more context on why the current interface is not a good fit for Legion/Legate. The current UCC context creation API requires an out-of-bounds allgather callback. The obvious way to...

@devinamatthews reminder to please take a look