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Record W3029129703 · doi:10.1145/3388831.3388845

Speed scaling in fork-join queues

2020· article· en· W3029129703 on OpenAlexaff
Andrea Marin, Sabina Rossi, Carey Williamson

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldBusiness, Management and Accounting
TopicAdvanced Queuing Theory Analysis
Canadian institutionsUniversity of Calgary
Fundersnot available
KeywordsFork–join queueComputer scienceQueueJoin (topology)Power consumptionServerFork (system call)ThroughputScalingDistributed computingReal-time computingAdaptation (eye)Power (physics)Computer networkQueue management systemOperating systemMathematics

Abstract

fetched live from OpenAlex

Frequency scaling plays an important power-saving role in computer systems. In fork-join systems, dynamic adaptation of the server speeds can significantly reduce system power consumption while maintaining high throughput. In previous work, we studied a rate adaptation policy that dynamically chooses server speeds based on the difference in join-queue lengths, with each server knowing only its own join-queue length and that of one other server. In this work, we increase the information available to each server, and choose speeds based on the knowledge of the join-queue lengths of two other servers. We show that, under a specific canonical configuration of the service rates, the new system has exactly the same throughput and subtask dispersion as before, but with reduced power consumption. We use time-reversal analysis to derive the exact stationary performance of this new model under saturation conditions, and use simulation to study more general cases.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.006
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.003
Threshold uncertainty score0.008

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.006
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0010.001
Scholarly communication0.0010.002
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0020.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.025
GPT teacher head0.240
Teacher spread0.215 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designTheoretical or conceptual
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2020
Admission routes1
Has abstractyes

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