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Record W2104169328 · doi:10.1109/ipdps.2009.5161167

EHGRID: An emulator of heterogeneous computational grids

2009· article· en· W2104169328 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.
fundA Canadian funder is recorded on the work.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicDistributed and Parallel Computing Systems
Canadian institutionsUniversity of New Brunswick
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsComputer scienceDistributed computingGrid computingGridSymmetric multiprocessor systemScheduling (production processes)HomogeneousHeterogeneous networkComputer clusterParallel computingSupercomputerComputational scienceWirelessWireless network

Abstract

fetched live from OpenAlex

Heterogeneous distributed computing is found in a variety of fields including scientific computing, Internet and mobile devices. Computational grids focusing primarily on computationally-intensive operations have emerged as a new infrastructure for high performance computing. Specific algorithms such as scheduling, load balancing and data redistribution have been devised to overcome the limitations of these systems and take full advantage of their processing power. However, experimental validation and fine-tuning of such algorithms require multiple heterogeneous platforms and configurations. We present EHGRID, a computational grid emulator based on the heterogeneous emulator Wrekavoc. EHGRID reshapes the virtual topology of a homogeneous cluster, degrades the performance of the processors and modifies the characteristics of the network links in an accurate, independent and reproducible way. We demonstrate its utility using two parallel matrix-vector programs and selected NAS parallel benchmarks on a series of four emulated grids.

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)0.000
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: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.799
Threshold uncertainty score0.354

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 science0.0010.000
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 head0.014
GPT teacher head0.259
Teacher spread0.245 · 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