Concept

Concurrency (computer science)

Publications associées (171)

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Disjoint-access parallelism does not entail scalability

Rachid Guerraoui, Mihai Letia

Disjoint Access Parallelism (DAP) stipulates that operations involving disjoint sets of memory words must be able to progress independently, without interfering with each other. In this work we argue towards revising the two decade old wisdom saying that D ...

2014

Disjoint-Access Parallelism Does Not Entail Scalability

Rachid Guerraoui, Mihai Letia

2014

Linearizability Is Not Always a Safety Property

Rachid Guerraoui, Eric Ruppert

We show that, in contrast to the general belief in the distributed computing community, linearizability, the celebrated consistency property, is not always a safety property. More specifically, we give an object for which it is possible to have an infinite ...

Springer International Publishing2014

Sharing Data and Work Across Concurrent Analytical Queries

Anastasia Ailamaki, Manoussos Gavriil Athanassoulis, Iraklis Psaroudakis

Today's data deluge enables organizations to collect massive data, and analyze it with an ever-increasing number of concurrent queries. Traditional data warehouses (DW) face a challenging problem in executing this task, due to their query-centric model: ea ...

2013

Spores, Formally

Philipp Haller

Functional programming (FP) is regularly touted as the way forward for bringing parallel, concurrent, and distributed programming to the mainstream. The popularity of the rationale behind this viewpoint (immutable data transformed by function application) ...

2013

Achieving high-throughput State Machine Replication in multi-core systems

André Schiper, Nuno Filipe de Sousa Santos

The traditional architecture used by implementations of Replicated State Machines (RSM) does not fully exploit modern multi-core CPUs. This is increasingly the limiting factor in their performance, because network speeds are increasing much faster than the ...

Ieee2013

Integration of BIP into Connectivity Factory: Implementation

Simon Bliudze, Anastasia Mavridou, Radoslaw Szymanek, Alina Zolotukhina

Coordinating component behaviour and, in particular, concurrent access to resources is among the key difficulties of building large concurrent systems. To address this, developers must be able to manipulate high-level concepts, such as Finite State Machine ...

2013

Composing Relaxed Transactions

Rachid Guerraoui, Vincent Gramoli, Mihai Letia

As the classic transactional abstraction is sometimes considered too restrictive in leveraging parallelism, a lot of work has been devoted to devising relaxed transactional models with the goal of improving concurrency. Nevertheless, the quest for improvin ...

IEEE Computer Society2013

Execution Synthesis: A Technique for Automating the Debugging of Software

Cristian Zamfir

Debugging real systems is hard, requires deep knowledge of the target code, and is time-consuming. Bug reports rarely provide sufficient information for debugging, thus forcing developers to turn into detectives searching for an explanation of how the prog ...

EPFL2013

For Coordination, State Component Transitions

Simon Bliudze, Anastasia Mavridou, Radoslaw Szymanek, Alina Zolotukhina

2013