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Record W7132898413

Automated Compilation Framework for RISC-V + CGRA Systems

2023· dissertation· W7132898413 on OpenAlexaff
Tianyi Yu

Bibliographic record

VenueTSpace · 2023
Typedissertation
Language
FieldComputer Science
TopicEmbedded Systems Design Techniques
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsCompilerDataflowKernel (algebra)ExecutableGraphJust-in-time compilationCompile time
DOInot available

Abstract

fetched live from OpenAlex

Course-Grained Reconfigurable Architectures (CGRAs) are programmable hardware platforms with coarse-grained programmable logic blocks and word-wide configurable interconnect. In this thesis, we present a high-level compilation framework for the processor + CGRA hybrid systems, where a CGRA is used in tandem with the processor for application acceleration. The input to the framework is a C-language program. The output is a compiled executable for a RISC-V processor, and an optimized dataflow graph (DFG) kernel for acceleration on the CGRA. We utilize the powerful MLIR compiler representation to realize such optimization, mainly targeting sequential rectangular loop access patterns and leveraging the spatial parallelism of the CGRA. We take inspiration from ScaleHLS, which is a compiler exploration framework for high-level synthesis (HLS) on FPGAs. In an experimental study, we show the impact of our kernel optimizations on CGRA performance. Our automatic exploration compiler pass is able to raise kernel throughput, while increasing kernel mappbility. With our automatic generation framework, we aim to take the burden off users from manually crafting both the assembly and kernel representation to run an application on a RISC-V+CGRA hybrid system, thereby raising designer productivity and reducing cost.

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)0.002
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Scholarly communication, Research integrity, Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.953
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.001
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0020.001
Bibliometrics0.0010.002
Science and technology studies0.0010.000
Scholarly communication0.0020.001
Open science0.0030.000
Research integrity0.0020.001
Insufficient payload (model declined to judge)0.0000.001

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 head0.062
GPT teacher head0.410
Teacher spread0.348 · 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
GenreMethods

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
Published2023
Admission routes1
Has abstractyes

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