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GPU-Accelerated Sparse LU Factorization for Concurrent Analysis of Large-Scale Power Systems

2022· article· en· W4292348334 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

Venue2022 IEEE International Conference on Environment and Electrical Engineering and 2022 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) · 2022
Typearticle
Languageen
FieldEngineering
TopicPower System Optimization and Stability
Canadian institutionsYork University
Fundersnot available
KeywordsSolverComputer scienceComputationSparse matrixParallel computingComputational scienceGauss–Seidel methodConvergence (economics)Scale (ratio)Gaussian eliminationLU decompositionElectric power systemNewton's methodAlgorithmFactorizationNonlinear systemIterative methodPower (physics)Matrix decompositionGaussianPhysics

Abstract

fetched live from OpenAlex

Analyzing a massive number of Power Flow (PF) equations even on almost identical or similar network topology is a highly time-consuming process for large-scale power systems. The major computation time is hoarded by the iterative linear solver to solve nonlinear equations to achieve convergence. This is a paramount concern for any PF analysis methods, such as Newton-Raphson (NR) method, Gauss-Seidel (GS) method, Fast Decoupled (FD) method, etc. The computation time increases by increasing the size and complexity of the system. This paper presents a GPU-accelerated sparse matrix solver that is fast to be implemented in the real-time and concurrent analysis of large-scale power systems. The achieved results show a computational gain of over six times compared to MATPOWER, which is a well-known tool for PF analysis of power systems.

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 categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.259
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
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 head0.060
GPT teacher head0.253
Teacher spread0.193 · 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