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Record W3015172527 · doi:10.1109/rtss46320.2019.00032

Segment Streaming for the Three-Phase Execution Model: Design and Implementation

2019· article· en· W3015172527 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicReal-Time Systems Scheduling
Canadian institutionsUniversity of Waterloo
Fundersnot available
KeywordsComputer scienceMPSoCCompilerEmbedded systemScheduling (production processes)MultiprocessingReal-time operating systemTask (project management)Parallel computingScheme (mathematics)Operating system

Abstract

fetched live from OpenAlex

Scheduling tasks using the three-phase execution model (load-execute-unload) can effectively reduce the contention on shared resources in real-time systems. Due to system and program constraints, a task is generally segmented and executed over multiple intervals. Several works showed that co-scheduling memory (unload-load) and computation phases can improve the system schedulability by hiding the memory transfer time. However, this is limited to segments of different tasks and hence executing segments of the same task back-to-back is not allowed. In this paper, we propose a new streaming model to allow overlapping the memory and execution phases of segments of the same task. This is accomplished by a segmentation framework implemented within an LLVM-based compiler-level tool along with a Real-Time Operating System (RTOS) API to handle load/unload requests. Memory phases are processed by a DMA engine that loads/unloads the task content into ScratchPad Memory (SPM). We provide a schedulability analysis of the proposed model under fixed priority partitioned scheme and an RTOS implementation of the API on a latest-generation Multiprocessor System-on-Chip (MPSoC).

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.812
Threshold uncertainty score0.210

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.035
GPT teacher head0.320
Teacher spread0.285 · 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

Quick stats

Citations9
Published2019
Admission routes1
Has abstractyes

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