Concept

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Publications associées (65)

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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

Extremes: spatial parametric modeling

Anthony Christopher Davison

Statistics of spatial extremes is developing very rapidly, owing to the demands of applications in the environmental sciences and the insurance and risk industries. This entry sketches the main ideas, based on classical extreme-value statistics. The two ma ...

John Wiley2012

Addressing the ZooKeeper Synchronization Inefficiency

André Schiper, Babak Kalantari

In this paper we discuss the problem of synchronization in ZooKeeper, a fault-tolerant distributed coordination framework. One of the key features of ZooKeeper is to move away from blocking API such as locks, in order to avoid problems with slow or faulty ...

2012

Data Races vs. Data Race Bugs: Telling the Difference with Portend

George Candea, Cristian Zamfir, Baris Can Cengiz Kasikci

Even though most data races are harmless, the harmful ones are at the heart of some of the worst concurrency bugs. Alas, spotting just the harmful data races in programs is like finding a needle in a haystack: 76%-90% of the true data races reported by sta ...

Acm Order Department, P O Box 64145, Baltimore, Md 21264 Usa2012

On the Performance of Software Transactional Memory

Aleksandar Dragojevic

The recent proliferation of multi-core processors has moved concurrent programming into mainstream by forcing increasingly more programmers to write parallel code. Using traditional concurrency techniques, such as locking, is notoriously difficult and has ...

EPFL2012

Adjustable fixation system for neurosurgical devices

Jean-Philippe Thiran, Rémi Charrier, David Haag

The system comprises at least a support (5) to be attached to a patient by fixing means (4), said support having an outer thread (7), a first nut (9) with an inner thread (11 ) cooperating with said outer thread (7) and an anchor having a spherical bottom ...

2012

Accurately Classifying Data Races with Portend

George Candea, Cristian Zamfir, Baris Can Cengiz Kasikci

Even though most data races are harmless, the harmful ones are at the heart of some of the worst concurrency bugs. Eliminating all data races from programs is impractical (e.g., system performance could suffer severely), yet spotting just the harmful ones ...

2011

Atomic boxes: coordinated exception handling with transactional memory

Vincent Gramoli, Pascal Felber

In concurrent programs raising an exception in one thread does not prevent others from operating on an inconsistent shared state. Instead, exceptions should ideally be handled in coordination by all the threads that are affected by their cause. In this pap ...

2011

Why STM can be more than a Research Toy

Rachid Guerraoui, Vincent Gramoli, Aleksandar Dragojevic, Pascal Felber

Software Transactional Memory (STM) promises to simplify concurrent programming without requiring specific hardware support. Yet, STM’s credibility lies on the extent to which it enables to leverage multicores and outperform sequential code. A recent CACM ...

2011

Deadlock Immunity

Horatiu Jula

Deadlock immunity is a property by which programs, once afflicted by a deadlock, develop resistance against future occurrences of that deadlock. We enable real applications to automatically achieve immunity against deadlock bugs involving mutex locks, sema ...

EPFL2011