glue-viz/glue-openspace

Use a more efficient mechanism for passing data and subsets to OpenSpace

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#5 opened on Jun 26, 2019

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Description

This requires changes in OpenSpace, but tables with ~10^5-6 rows or more, it's going to be critical to have the ability to pass the data to OpenSpace in binary form, either using a binary file format, or by somehow sharing memory. The former is probably easier, and will be required anyway if OpenSpace is running on a separate machine from glue.

For subsets, the ideal solution would be to be able to tell OpenSpace that a data layer is a subset of another layer, and provide a bit/boolean mask array indicating which elements to pick.

Contributor guide

Research direction
Investigate the current data transfer mechanism between glue and OpenSpace. Explore binary data formats like HDF5 or FITS, and consider memory mapped files for shared memory. For subsets, design a bitmask array approach and propose changes to OpenSpace's data layer handling.
Tech stack
python
Domain
dataperformance
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
PythonglueOpenSpace
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20