نتایج جستجو برای: coordinated checkpointing
تعداد نتایج: 48092 فیلتر نتایج به سال:
Several schemes for checkpointing and rollback recovery have been reported in the literature. In this paper, we analyze some of these schemes under a stochastic model. We have derived expressions for average cost of checkpointing, rollback recovery, message logging and piggybacking with application messages in synchronous as well as asynchronous checkpointing. For quasi-synchronous checkpointin...
This study investigates real-time checkpointing techniques in the context of distributed process control applications where checkpointing and recovery operations must meet timing constraints, such as process deadline and plant state validity. We introduce the notion of quasidurability, which allows one to rnake trudeoffs between storage device reliability and the process control and recovery ti...
Performance prediction of checkpointing systems in the presence of failures is a well-studied research area. While the literature abounds with performance models of checkpointing systems, none address the issue of selecting runtime parameters other than the optimal checkpointing interval. In particular, the issue of processor allocation is typically ignored. In this paper, we present a performa...
In its simplest form, checkpointing is the act of saving a program’s computation state in a form external to the running program, e.g. the computation state is saved to a filesystem. The checkpoint files can then be used to resume computation upon failure of the original process(s), hopefully with minimal loss of computing work. A checkpoint can be taken using a variety of techniques in every l...
Many communication induced checkpointing algorithms have been proposed for asynchronous cooperating processes. All of them suffer from overhead due both to the exchange of control information and to the insertion of local checkpoints additional to the basic ones. In this paper we propose a low overhead checkpointing-recovery scheme. It consists of a domino-free checkpointing algorithm plus an a...
Many mathematical models have been proposed to evaluate the execution performance of an application with and without checkpointing in the presence of failures. They assume that the total program execution time without failure is known in advance, under which condition the optimal checkpointing interval can be determined. In mobile environments, application components are distributed and tasks a...
Fast checkpointing algorithms require distributed access to stable storage. This paper revisits the approach based upon double checkpointing, and compares the blocking algorithm of Zheng, Shi and Kalé [23], with the non-blocking algorithm of Ni, Meneses and Kalé [15] in terms of both performance and risk. We also extend the model proposedcan provide a better efficiency in [23, 15] to assess the...
We present a preliminary description of a user-level checkpointing package, DMTCP, for Linux. The socket-based approach presents a novel method for checkpointing distributed processes. This includes checkpointing of any dynamically created POSIX threads and forked child processes. It also includes checkpointing of remotely spawned processes via ssh and other mechanisms. As with all user-level c...
There are two approaches to reduce the overhead associated with coordinated checkpointing: )rst is to minimize the number of synchronization messages and the number of checkpoints; the other is to make the checkpointing process non-blocking. In our previous work (IEEE Parallel Distributed Systems 9 (12) (1998) 1213), we proved that there does not exist a non-blocking algorithm which forces only...
The distributed computing systems, predominantly computing and computer based systems generally tolerate changes which are not desired, in their internal structure or external environment in regular working which can be referred to as faults. A Fault may be an operational fault or design fault. The techniques to tolerate the fault are used to make a system fault tolerable. Checkpointing is a te...
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