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Record W2158630919 · doi:10.1145/1150019.1136508

Spatial Memory Streaming

2006· article· en· W2158630919 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

VenueACM SIGARCH Computer Architecture News · 2006
Typearticle
Languageen
FieldComputer Science
TopicParallel Computing and Optimization Techniques
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsComputer scienceCacheParallel computingMemory bandwidthExploitBlock sizeCache-only memory architectureInterleaved memoryUniform memory accessBlock (permutation group theory)Registered memoryShared memoryFlat memory modelCache coloringComputer architectureCPU cacheMemory managementSemiconductor memoryComputer hardwareOperating systemKey (lock)

Abstract

fetched live from OpenAlex

Prior research indicates that there is much spatial variation in applications' memory access patterns. Modern memory systems, however, use small fixed-size cache blocks and as such cannot exploit the variation. Increasing the block size would not only prohibitively increase pin and interconnect bandwidth demands, but also increase the likelihood of false sharing in shared-memory multiprocessors. In this paper, we show that memory accesses in commercial workloads often exhibit repetitive layouts that span large memory regions (e.g., several kB), and these accesses recur in patterns that are predictable through codebased correlation. We propose Spatial Memory Streaming, a practical on-chip hardware technique that identifies codecorrelated spatial access patterns and streams predicted blocks to the primary cache ahead of demand misses. Using cycle-accurate full-system multiprocessor simulation of commercial and scientific applications, we demonstrate that Spatial Memory Streaming can on average predict 58% of L1 and 65% of off-chip misses, for a mean performance improvement of 37% and at best 307%.

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 categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.881
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 science0.0030.002
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 head0.009
GPT teacher head0.235
Teacher spread0.226 · 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