'Atomic action' diaporamas de présentation

Atomic Actions, Concurrent Processes and Reliability

Atomic Actions, Concurrent Processes and Reliability. Goal To understand how concurrent processes can reliably cooperate in the presence of errors. Topics. Atomic actions Backward error recovery Forward error recovery Asynchronous notifications POSIX signals

1.61k views • 137 slides

Atomic Actions, Concurrent Processes and Reliability

Atomic Actions, Concurrent Processes and Reliability. Goal To understand how concurrent processes can reliably cooperate in the presence of errors. Topics. Atomic actions Backward error recovery Forward error recovery Asynchronous notifications POSIX signals

1.53k views • 137 slides

Transaction

Transaction. All-or-nothing. Principles of Computer System (2012 Fall). Where are we?. System Complexity Modularity & Naming Enforced Modularity Network Fault Tolerance Transaction All-or-nothing Before-or-after. Review. Goal Building reliable system out of unreliable components

964 views • 78 slides

Semaphore

Semaphore. Semaphore structure. Sub-Semaphores . 10. 0. 1. 2. 3. 4. 5. 0. 1. 2. 3. 4. 5. 2 0. Semaphores . 0. 1. 2. 3. 4. 5. 30. 40. 0. 1. 2. 3. 4. 5. Creating and Accessing Semaphore Sets. int semget ( key_t key,int nsems,int semflg ) Header: sys/ types.h

749 views • 36 slides

COT 5611 Operating Systems Design Principles Spring 2012

352 views • 35 slides

Techniques and Structures in Concurrent Programming

498 views • 29 slides

PTR: A Probabilistic Transaction Logic

PTR: A Probabilistic Transaction Logic. A logic for reasoning about action under uncertainty. A mathematically sound foundation for building software that requires such reasoning. Julian Fogel. Applications. Uncertainty in workflow Unreliable circuits AI planning Game theory.

406 views • 26 slides

Computer Organization

Computer Organization. Basic Architecture Review. Von Neumann Distinct single-ALU & single-Control Fixed circuitry Non-von Neumann Various changes Multiple ALUs Merged ALU and Control Alternatives to ALU. Timing.

405 views • 22 slides

Fault Tolerance

Fault Tolerance. System reliability: Fault-Intolerance vs. Fault-Tolerance. The fault intolerance (or fault-avoidance) approach improves system reliability by removing the source of failures (i.e., hardware and software faults) before normal operation begins

738 views • 12 slides