Consider data locality in Prefetching and Placement Decisions

Open
#545 0 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
cpp

Research direction

Start by reviewing the Prefetcher and DPE entry points, then trace how existing Get and Put operations move data between nodes. Clarify the placement and delegation interfaces needed for data locality; done means advanced access knowledge can place data on a selected node and delegate data to new nodes.

Written by the indexing model from the issue text.

Description

Sometimes we have advanced knowledge of data access patterns and should be able to place data on the node directly before-hand to avoid networking costs.

Prefetcher can use Get + Put to place data into a new node.
A DPE should be available which allows data to be delegated to new nodes.

Dominant language
C++
Stars
34
Forks
19
PR merge metrics
No merged PRs in 30d

Getting set up

This project ships no dev container, Dockerfile or contributing guide, so setting up is up to you: start from its README, and see our first-contribution guide for the general steps.

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from HDFGroup/hermes

All issues in HDFGroup/hermes

Similar issues

More C++ issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.