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Record W3209605964 · doi:10.1145/3458817.3476140

SEEC: stochastic escape express channel

2021· article· en· W3209605964 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

VenueIEEE International Conference on High Performance Computing, Data, and Analytics · 2021
Typearticle
Languageen
FieldComputer Science
TopicInterconnection Networks and Systems
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsComputer scienceComputer networkNetwork packetRouterDeadlockThroughputTraverseDistributed computingOperating systemWireless

Abstract

fetched live from OpenAlex

Allocating a free buffer before moving to the next router is a fundamental tenet for packet movement in NoCs. Often, to solve head of line blocking and avoid deadlock, NoCs are provisioned with significant buffer resources in the form of virtual channels (VC) which consume area and power. We introduce stochastic escape express channels (SEEC) to enhance performance and avoid deadlock with dramatically fewer buffers than state-of-the-art NoCs. The network interfaces in SEEC periodically send special tokens called seekers to find packets destined for them and upgrade them to use a novel flow control called Free-Flow (FF). FF-packets traverse the network minimally from link to link, bypassing routers (bufferlessly) to the destination. As a result, FF-packets bypass regions of congestion in the NoC without needing more buffers. Furthermore, any deadlock that a FF-packet was originally involved in is guaranteed to break, without requiring turn restrictions or extra VCs. We also present an extension called multi-SEEC (mSEEC) that enables multiple simultaneous non-intersecting FF-packet traversals to enhance throughput further. We implement and evaluate SEEC and mSEEC on a mesh over a range of synthetic workloads and real applications and observe 34--40% reduction in average packet latency for real applications and 10--50% average improvement in throughput for synthetic traffic over the state-of-the-art at 1/6th the area/power budget.

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: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.830
Threshold uncertainty score0.900

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 communication0.0010.001
Open science0.0020.001
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 head0.073
GPT teacher head0.302
Teacher spread0.228 · 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