llnl / llnl/mgmol

LBFGS restart

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bug
Dominant language
C++
Stars
47
Forks
15
Avg merge
12h 20m
Merged PRs (30d)
3

Description

LBFGS can restart, but the data used for restart is not the right one. That means it affects overall convergence, sometimes leads to failure.

Solution: dump all the data needed to restart smoothly and read it properly when restarting.

Contributor guide

No contributing guide indexed for this repository

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.

Research direction

Locate the LBFGS restart serialization and loading entry points, then trace which state is written and restored during a restart. The issue is complete when all data required for a smooth restart is preserved and restored correctly, avoiding the reported convergence and failure effects.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
hpc
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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