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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog. Batsched adheres to Semantic Versioning and its public API is the following.

  • Batched's command-line interface.
  • The format of Batsched's input files.
  • Important note: Changes in the Batsim protocol does not impact Batsched's public API.

Unreleased

1.4.0 - 2020-07-29 - For Batsim v4.0.0

Added

  • New fcfs algorithm (copied from fcfs_fast) that takes into account the resources selector given in parameter.

Fixed

  • The easy_bf_fast did not try to backfill previously submitted jobs in many events (when the priority job could not be executed).

1.3.0 - 2019-01-15 - For Batsim v3.0.0

Added

  • CLI: logging verbosity can now be set with --verbosity.

Changed

1.2.1 - 2018-07-03 - For Batsim v2.0.0

Fixed

  • The sleeper algorithm continued to send requests when the simulation was finished, which should now be fixed.
  • The easy_bf_fast algorithm rejected jobs that requested all the machines if they could not be executed directly after being submitted (issue 6).

Changed

  • The submitter algorithm now also sets metadata for usual jobs.

1.2.0 - 2018-04-09 - For Batsim v2.0.0

Added

  • New algorithms:
    • easy_bf_fast, which is an efficient (usual) implementation of EASY backfilling. In contrast with the robust and general easy_bf implementation, this one does floating-point computation, only handles jobs will walltimes, use ad-hoc structures for its simple backfilling mechanism (rather than a general-purpose 2D partition), only handles the FCFS queue order (rather than sorting the queue at each event), uses the first reservation of the priority job (rather than compressing the reservation as soon as possible at each event), and tries to only call the needed code depending on which event occured.
    • fcfs_fast, which is essentially easy_bf_fast without backfilling.

1.1.0 - 2018-03-03 - For Batsim v2.0.0

Added

  • Added minimal bash completion via taywee/args.
  • Added --version option.
  • New algorithms:
    • Crasher, whose purpose is to crash :). This is useful to test execution managers.
    • EnergyWatcher, whose purpose is just to query the energy consumption to Batsim
    • Random, whose purpose is notably to test time-sharing.
    • Sequencer, which is very simple and whose purpose is to be the base of other testing algorithms.
    • WaitingTimeEstimator, whose purpose is only to test the support of the estimate_waiting_time QUERY.

Changed

  • Batsched arguments are now parsed by taywee/args rather than boost::po.
  • Support Batsim version 2.0.0:
    • two-way QUERY/REPLY (+estimate_waiting_time)
    • SET_JOB_METADATA
  • Changed algorithms:
    • Conservative BF now supports the estimate_waiting_time QUERY.
    • Filler now supports a custom mapping and setting job metadata.
    • Submitter now supports setting job metadata.

1.0.0 - 2017-11-20

Initial release.