llnl / llnl/MPIDiff

Reduce I/O flushes

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Dominant language
C++
Stars
7
Forks
0
PR merge metrics
No merged PRs in 30d

Description

Be careful about use of std::endl. Probably use std::endl to do a flush at the end of all the output for one array (not for each line). Or perhaps after a chunk of lines.

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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

No file, test, or entry point is named. Search the output code for std::endl and identify where array or chunk output is flushed; the change is done when flushing is reduced to the intended array or chunk boundaries without changing the reported output.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
performance
Issue type
Refactor
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
45/100

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