HDFGroup/hermes

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Extending the HDF5 library to support intelligent I/O buffering for deep memory and storage hierarchy systems

Is HDFGroup/hermes beginner-friendly?

We have not seen enough recent pull requests from outside contributors to HDFGroup/hermes to say how often they are merged. No beginner-friendly issue is open right now; the list below has the other issues we hold for it.

Stars
34
Forks
19
Open beginner issues
0
Indexed issues
61
Dominant language
C++
License
No license data
Last GitHub push
Jan 14, 2025
Latest indexed
Sep 14, 2026
No contributing guide
No code of conduct
Beginner labels
No beginner labels indexed
No merged PRs in 30d

How to contribute to HDFGroup/hermes

  1. There is no contributing guide, so start from the README and a few recently merged pull requests to see how changes are proposed.
  2. Follow the repository to hear when a new beginner-friendly issue opens, or look through the other issues below.
Beginner friendly Everything
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Issues somebody may already be working on are listed last. List everything by date

  • Move the Hermes spack repo to the grc-repo
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 35/100

    HDFGroup/hermes#698 · 1 reaction ·

  • Figure is missing on Wiki page
    May be free again Open
    • Is something wrong?
    documentation

    HDFGroup/hermes#691 · 1 assignee ·

  • Feature Request: Persistent file storage from Hermes
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    HDFGroup/hermes#683 · 2 comments · 2 reactions ·

  • Improve performance for extremely small I/O workloads
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 20/100

    HDFGroup/hermes#680 ·

  • Make it so bucket destroy flushes all bucket operations before destroying the bucket
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 30/100

    HDFGroup/hermes#663 ·

  • Investigate Hermes VOL
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 20/100

    HDFGroup/hermes#636 ·

  • Visualize Hermes buffering live
    Open
    • Is something wrong?
    in-progress

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    HDFGroup/hermes#622 ·

  • Make it so that the path to the hermes config is passed as part of the Hermes task
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 45/100

    HDFGroup/hermes#593 ·

  • Provide authentication mechanisms for Hermes
    Open
    • Is something wrong?
    priority-low

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    HDFGroup/hermes#582 · 1 reaction ·

  • Support mmap/sbrk interception for avoiding data copies between runtime and client
    Open
    • Is something wrong?
    priority-medium

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    HDFGroup/hermes#581 ·

  • Distributed scalability experiments for Hermes 1.1
    Open
    • Is something wrong?
    in-progress

    Difficulty 5/5 Over a week Newbie friendliness 20/100

    HDFGroup/hermes#575 ·

  • Add to the DPE a flag to prioritize the buffering of a blob on a remote node
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    HDFGroup/hermes#574 ·

  • Revisit memory allocation performance
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    HDFGroup/hermes#573 ·

  • Test Hermes underneath async I/O APIs
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 20/100

    HDFGroup/hermes#570 · 1 reaction ·

  • Run ATLAS
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 15/100

    HDFGroup/hermes#566 · 1 reaction ·

  • Implement NUMA-awareness in queue selection
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 15/100

    HDFGroup/hermes#558 ·

  • Hermes is throwing an hshm::Exception when using ulimit
    Open
    • Is something wrong?
    priority-medium

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    HDFGroup/hermes#556 ·

  • Python trace analyzer
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    HDFGroup/hermes#552 ·

  • Consider data locality in Prefetching and Placement Decisions
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    HDFGroup/hermes#545 ·

  • Implement Policy-Based Metadata Replication
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 20/100

    HDFGroup/hermes#544 ·

  • Implement Task Monitor
    Open
    • Is something wrong?
    priority-medium

    Difficulty 5/5 Over a week Newbie friendliness 20/100

    HDFGroup/hermes#538 ·

  • Split VFD
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 25/100

    HDFGroup/hermes#532 ·

  • Make the Hermes VFD non-terminal
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 20/100

    HDFGroup/hermes#522 ·

  • Customized I/O buffering policy with Hermes Blobs control
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 20/100

    HDFGroup/hermes#493 ·

  • Run experiments over DLIO
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 15/100

    HDFGroup/hermes#474 ·

  • Don't make 5 command line arguments optional.
    May be free again Open
    • Is something wrong?

    HDFGroup/hermes#471 · 1 assignee ·

  • Improve argument checking for `stage_in`
    May be free again Open
    • Is something wrong?

    HDFGroup/hermes#470 · 1 assignee ·

  • Rename TestWriteDataset() to TestMakeDataset() in hermes/adapter/test/vfd/hermes_vfd_test.cc.
    May be free again Open
    • Is something wrong?
    bug

    HDFGroup/hermes#461 · 2 comments · 1 assignee ·

  • Collect list of potential technical improvements
    May be free again Open
    • Is something wrong?

    HDFGroup/hermes#429 · 1 assignee ·

  • Make the SystemViewState update interval dynamic
    May be free again Open
    • Is something wrong?
    effort-small enhancement

    HDFGroup/hermes#420 · 1 assignee ·

  • Let CMake populate the project version in Doxyfile.in
    Open
    • Is something wrong?

    Difficulty 2/5 1-3 hours Newbie friendliness 48/100

    HDFGroup/hermes#400 · 1 reaction ·

  • Compile an assessment of the VFD and a list of possible improvements
    May be free again Open
    • Is something wrong?
    vfd

    HDFGroup/hermes#381 · 1 assignee ·

  • Update scoring function for importance score
    May be free again Open
    • Is something wrong?
    enhancement

    HDFGroup/hermes#355 · 1 assignee ·

  • Add a Hermes "hello world" app to the Docker image
    May be free again Open
    • Is something wrong?

    HDFGroup/hermes#343 · 1 assignee ·

  • Investigate using our Docker images in Singularity
    Open
    • Is something wrong?
    priority-low

    Difficulty 3/5 1-2 days Newbie friendliness 35/100

    HDFGroup/hermes#335 ·

  • Create convenient spack view in docker image
    May be free again Open
    • Is something wrong?

    HDFGroup/hermes#327 · 1 reaction · 1 assignee ·

  • Align the Docker images with CI
    May be free again Open
    • Is something wrong?
    effort-medium priority-medium testing

    HDFGroup/hermes#311 · 1 assignee ·

  • Investigate failing posix_adapter_shared_test.cpp
    May be free again Open
    • Is something wrong?
    adapter-posix bug testing

    HDFGroup/hermes#302 · 1 comment · 1 assignee ·

  • Add full-text search to the Doxygen documentation and Wiki
    May be free again Open
    • Is something wrong?
    documentation effort-small

    HDFGroup/hermes#300 · 1 assignee ·

  • Make the Doxygen build and S3 upload a GitHub action
    May be free again Open
    • Is something wrong?
    documentation effort-medium enhancement testing

    HDFGroup/hermes#280 · 1 assignee ·

  • Prepare an overview of HDF5 Hermes VFD performance results over baseline(s) w/ HDF5 I/O test & IOR
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 35/100

    HDFGroup/hermes#267 ·

  • Multi-node checkpoint/restart benchmark on Fronterra
    May be free again Open
    • Is something wrong?

    HDFGroup/hermes#260 · 1 comment · 1 assignee ·

  • Provide a config generator
    Open
    • Is something wrong?
    enhancement

    Difficulty 5/5 Over a week Newbie friendliness 35/100

    HDFGroup/hermes#255 ·

  • Factor blob size into importance score and reverse importance direction
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 35/100

    HDFGroup/hermes#243 ·

  • Collect VPIC results on Frontera
    May be free again Open
    • Is something wrong?
    effort-medium

    HDFGroup/hermes#237 · 1 assignee ·

  • Investigate if we can have a non-terminal Hermes VFD
    May be free again Open
    • Is something wrong?
    enhancement

    HDFGroup/hermes#236 · 1 assignee ·

  • Add a way to tell Hermes a Blob is write-once
    May be free again Open
    • Is something wrong?
    effort-small

    HDFGroup/hermes#226 · 1 assignee ·

  • Support OpenMPI in MPI-IO adapter
    May be free again Open
    • Is something wrong?

    HDFGroup/hermes#202 · 2 comments · 1 assignee ·

  • Implement an ordering Trait
    May be free again Open
    • Is something wrong?
    effort-medium

    HDFGroup/hermes#197 · 1 assignee ·

  • Try Hermes with real apps
    May be free again Open
    • Is something wrong?
    effort-large in-progress peformance

    HDFGroup/hermes#196 · 1 assignee ·

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