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Towards formally verifiable resource bounds for real-time embedded systems

Kevin Hammond, Christian Ferdinand, Reinhold Heckmann
2006 ACM SIGBED Review  
This paper describes ongoing work aimed at the construction of formal cost models and analyses that are capable of producing verifiable guarantees of resource usage (space, time and ultimately power consumption  ...  ) in the context of realtime embedded systems.  ...  The EmBounded project (IST-2004-510255 of EU Framework VI), led by Dr Kevin Hammond, aims to research this problem.  ... 
doi:10.1145/1183088.1183093 fatcat:ojcxy3hksffrhfywvlrk5xky6e

Scalable Kernel Fusion for Memory-Bound GPU Applications

Mohamed Wahib, Naoya Maruyama
2014 SC14: International Conference for High Performance Computing, Networking, Storage and Analysis  
The paper also proposes a codeless performance upper-bound projection model to achieve effective fusions.  ...  This paper introduces a problem definition and proposes a scalable method for searching the space of possible kernel fusions to identify optimal kernel fusions for large problems.  ...  The objective function in Equation (1) is defined as the new kernel's projected runtime bound (in seconds) as follows T pro = ( N F l + M F lop(x) * Hal B * T hr ) * 10 −9 P M emBound , x ∈ S (10) V.  ... 
doi:10.1109/sc.2014.21 dblp:conf/sc/WahibM14 fatcat:ct23w7scs5awbjpabb4b3ksbcy

Performance upper bound analysis and optimization of SGEMM on Fermi and Kepler GPUs

Junjie Lai, A. Seznec
2013 Proceedings of the 2013 IEEE/ACM International Symposium on Code Generation and Optimization (CGO)  
In this paper, we present an approach to estimate GPU applications' performance upper bound based on algorithm analysis and assembly code level benchmarking.  ...  According to our analysis, the nature of Fermi (Kepler) instruction set and the limited issue throughput of the schedulers are the main limitation factors for SGEMM to approach the theoretical peak performance  ...  In this paper, we present an approach to project performance upper bound using algorithm analysis and assembly code level benchmarking.  ... 
doi:10.1109/cgo.2013.6494986 dblp:conf/cgo/LaiS13 fatcat:5lumigwq4zah5fr322vx6sptdm

A Proof-Carrying-Code Infrastructure for Resources

Hans-Wolfgang Loidl, Kenneth MacKenzie, Steffen Jost, Lennart Beringer
2009 2009 Fourth Latin-American Symposium on Dependable Computing  
This paper tackles the issue of increasing dependability of distributed systems in the presence of mobile code.  ...  heap consumption and independently validate this certificate at the consumer side by checking the certificate.  ...  ACKNOWLEDGEMENTS We would like to thank our colleagues in the MRG project,  ... 
doi:10.1109/ladc.2009.13 dblp:conf/ladc/LoidlMJB09 fatcat:bt3m5rvwmbcdhm5tw6zxuzwh7q

Certified Complexity (CerCo) [chapter]

Roberto M. Amadio, Nicolas Ayache, Francois Bobot, Jaap P. Boender, Brian Campbell, Ilias Garnier, Antoine Madet, James McKinna, Dominic P. Mulligan, Mauro Piccolo, Randy Pollack, Yann Régis-Gianas (+3 others)
2014 Lecture Notes in Computer Science  
Some hope has been provided by the EmBounded project [11] , which compositionally compiles high-level code to a byte code that is executed by an interpreter with guarantees on the maximal execution time  ...  The details on the proof techniques employed and the proof sketch can be found in the CerCo deliverables and papers [9] .  ... 
doi:10.1007/978-3-319-12466-7_1 fatcat:v7qsmewnarectofwkpjvyuwdbu

Towards an Implicit Characterization of NC k [chapter]

G. Bonfante, R. Kahle, J. -Y. Marion, I. Oitavem
2006 Lecture Notes in Computer Science  
Research supported by the joint french-portuguese project Theorie et langages de programmation pour les calculsà ressources bornées/Teorias e linguagens de programação para computações com recursos limitados  ...  Special attention is put on the description of T 2 and T 3 and on the proof of T 2 ⊆ N C 2 ⊆ T 3 . Such a hierarchy yields a characterization of N C.  ...  In an other context, such an approach has been established on the theoretical study of Hofmann [Hof99, Hof02] which found applications in the Embounded Project 1 .  ... 
doi:10.1007/11874683_14 fatcat:4lcospa725bmlbmfvxsok255ve

Hume box calculus: robust system development through software transformation

Gudmund Grov, Greg Michaelson
2010 Higher-Order and Symbolic Computation  
In this paper, we present an overview of the Hume box calculus and its applications in program development.  ...  Furthermore, the "Hierarchical Hume" extension enables strong locality of the effects of program manipulation, as well as providing a principled encapsulation mechanism.  ...  This work has been supported by the EU FP6 EmBounded project and the UK EPSRC Islay project (EP/F030592, EP/F030657, EP/F03072, and EP/F031017) "Adaptive Hardware Systems with Novel Algorithmic Design  ... 
doi:10.1007/s10990-011-9067-y fatcat:fmpmiaspzjaafchjq4haeut4hu

'Central London under siege': Diaspora, 'race' and the right to the (global) city

David Garbin, Gareth Millington
2017 Sociological Review  
The authors critically engage with Henri Lefebvre's 'right to the city' as a way of explaining how the urban is not only the site but also, increasingly, a stake in urban protests.  ...  ÔCentral London under siegeÕ: Diaspora, ÔraceÕ and the right to the (global) city  ...  At 6pm the police follow strict instructions to disperse protestors: [É] Doing that protest there, everything started fine, it was again in Downing Street, and then the police started pushing for people  ... 
doi:10.1177/0038026117703251 fatcat:onef4uujqrcyrfnm7z3olon3xa

Amortised Memory Analysis Using the Depth of Data Structures [chapter]

Brian Campbell
2009 Lecture Notes in Computer Science  
Constraints on these annotations in the type system ensure that the total potential assigned to the input is an upper bound on the total memory required to satisfy all allocations.  ...  We will also present the extra steps that must be taken to construct a typing during the analysis.  ...  Further work on the system could include enhancing the language (perhaps using the existing Hofmann-Jost extensions mentioned above), removing the need for users to provide the structure for type signatures  ... 
doi:10.1007/978-3-642-00590-9_14 fatcat:xqpno3rvefdrrjg4xe2ve2uxly

Relational semantics for effect-based program transformations with dynamic allocation

Nick Benton, Andrew Kennedy, Lennart Beringer, Martin Hofmann
2007 Proceedings of the 9th ACM SIGPLAN international conference on Principles and practice of declarative programming - PPDP '07  
The function Vsum can even be typed as Thus will be (correctly) regarded as pure by our analysis. Unfortunately, the masking rule does not apply to the type of the pure computation Mmem.  ...  Indeed, if it did, the impure M buf which has the same type as Mmem would be falsely given a pure typing.  ...  It thus contains the main technical contribution of the paper. Definition 5 (logical relation).  ... 
doi:10.1145/1273920.1273932 dblp:conf/ppdp/BentonKBH07 fatcat:zoduxqdparg6xivocxf26h2hqm

Resource analyses for parallel and distributed coordination

P. W. Trinder, M. I. Cole, K. Hammond, H-W. Loidl, G. J. Michaelson
2011 Concurrency and Computation  
Contributions made by the paper We start by motivating resource prediction for parallel/distributed systems (Section 2).  ...  This paper synthesises progress in both areas to survey the state-of-the-art in resource analysis for parallel and distributed computing.  ...  We also acknowledge the anonymous referees whose comments have significantly improved the paper. This  ... 
doi:10.1002/cpe.1898 fatcat:abmlmqopxraofkdqbvk5r575ya

Collected Size Semantics for Functional Programs over Lists [chapter]

Olha Shkaravska, Marko van Eekelen, Alejandro Tamalet
2011 Lecture Notes in Computer Science  
This work is part of the AHA project [17] which is sponsored by the Netherlands Organisation for Scientific Research (NWO) under grant nr. 612.063.511.  ...  We focus on the connection between the rewriting rules and lower and upper bounds on the multivalued size functions, when the bounds are given by piecewise polynomials.  ...  The EmBounded project aims to identify and certify resource-bounded code in Hume, a domain-specific high-level programming language for real-time embedded systems.  ... 
doi:10.1007/978-3-642-24452-0_7 fatcat:fxy72jrcbffxdhmb2z56wbfysy

Static determination of quantitative resource usage for higher-order programs

Steffen Jost, Kevin Hammond, Hans-Wolfgang Loidl, Martin Hofmann
2010 Proceedings of the 37th annual ACM SIGPLAN-SIGACT symposium on Principles of programming languages - POPL '10  
The bounds we infer depend on the sizes of the various inputs to a program. They thus expose the impact of specific inputs on the overall cost behaviour.  ...  We use a type-based approach, exploiting linearity to allow inference, and place a new emphasis on the number of references to a data object.  ...  Acknowledgements We would like to thank our colleagues Pedro Vasconcelos and Hugo Simões (both Universidade do Porto, Portugal) for their fruitful discussion of the rules and proofs, and the anonymous  ... 
doi:10.1145/1706299.1706327 dblp:conf/popl/JostHLH10 fatcat:e2rri6kg65eaxhik2lv4o3j4su

Exploiting Purely Functional Programming to Obtain Bounded Resource Behaviour: The Hume Approach [chapter]

Kevin Hammond
2006 Lecture Notes in Computer Science  
The purpose of the Hume language design is to explore the expressibility/costability spectrum in resource-constrained systems, such as real-time embedded or control systems.  ...  The use of a strict, purely functional programming notation allows the construction of a strong cost model for expressions, which can then be embedded into a simple cost model for processes.  ...  Acknowledgements This work has been generously supported by EU Framework VI grant IST-2004-510255 (EmBounded) and by EPSRC Grant EPC/0001346.  ... 
doi:10.1007/11894100_4 fatcat:eizvmibnjbbl7hwx4ozd6dnz7q

Low-Level Programming in Hume: An Exploration of the HW-Hume Level [chapter]

Kevin Hammond, Gudmund Grov, Greg Michaelson, Andrew Ireland
Lecture Notes in Computer Science  
This paper describes the HW-Hume level of the novel Hume language. HW-Hume is the simplest subset of Hume that we have identified.  ...  In this paper, we introduce HW-Hume, show some simple example programs, describe an eAEcient software implementation, and demonstrate how important properties can be exposed as part of an integrated formally-based  ...  interpreter written in portable C; t humec gives corresponding times under the general Hume to C template-compiler we are constructing as part of the EmBounded project; and t HW gives times under the  ... 
doi:10.1007/978-3-540-74130-5_6 fatcat:5nkqt3vrybfyfgfjgqdxsl654u
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