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Record W4401632845 · doi:10.22215/etd/2024-16133

Tensor Core GPU and Krylov Subspace-Based Algorithms for Multiport Large-Scale Circuit Reduction

2024· dissertation· en· W4401632845 on OpenAlexaff
Likith Simhadri

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldPhysics and Astronomy
TopicModel Reduction and Neural Networks
Canadian institutionsCarleton University
FundersGachon University
KeywordsKrylov subspaceMassively parallelComputer scienceReduction (mathematics)Subspace topologyParallel computingComputational scienceModel order reductionTensor (intrinsic definition)AlgorithmElectronic circuitExploitDimensionality reductionMathematicsEngineeringIterative methodArtificial intelligenceElectrical engineering

Abstract

fetched live from OpenAlex

Due to the recent surge in the user demand for higher density of devices, higher operating frequencies and multi-function designs, signal propagation issues such as delay, attenuation, crosstalk and skin effects of interconnects become predominant.Also, the desire for low-power designs with lower operating voltages, sharp signal edges and heavy switching currents are making the design of power delivery networks extremely challenging.Efforts to accurately model and capture these effects pose the challenge of simulating circuits with large sizes and mixed frequency/time formulations.Model-order reduction techniques based on Krylov-subspace have been suggested in the literature to speed up the simulation of large circuits along with mixed frequency/time formulations.Arnoldi algorithm based on Modified Gram-Schmidt or Cholesky formulations have been used to construct the Krylov-subspace with orthogonal projections.These were advanced to preserve the passivity of the reduced-order model using the PRIMA algorithm.In the recent years, exploiting the emerging multi-core and GPU platforms, parallel Arnoldi and GPU based approaches were developed.In this thesis, Krylov subspace-based PRIMA algorithm will be further advanced 5 Development of the Proposed Tensor Core GPU-Based PRIMA (TC-PRIMA) 5.1 Proposed TC-TSQR Factorization with GPU . . . . . . . . . .5.2 Proposed Tensor Core Based QR Implementation in GPU . .vi 6 Numerical Results 6.1 Establishing Benchmark for Accuracy Comparison for the Proposed Method . . . . . . . . . . . .

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 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)0.000
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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.716
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
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)0.0010.000

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 head0.033
GPT teacher head0.299
Teacher spread0.265 · 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 teacher head, not a consensus.

Study designSimulation or modeling
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

Citations0
Published2024
Admission routes1
Has abstractyes

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