Alpaca: intermittent execution without checkpoints

Putting checkpoints to work in thread level speculative execution

With the advent of Chip Multi Processors (CMPs), improving performance relies on the programmers/compilers to expose thread level parallelism to the underlying hardware. Unfortunately, this is a difficult and error-prone process for the programmers, while state of the art compiler techniques are unable to provide significant benefits for many classes of applications. An interesting alternative ...

Glossary Of Alpaca Terms

Checkpoints

Transient and Intermittent Fault Recovery without Rollback

Increasing chip density combined with heightened reliability expectations has spawned greater interest in fault tolerant design. In recent years, research into rollback and retry techniques has established them as an e ective approach to recovery from transient and intermittent faults. For applications with strict timing requirements, however, the high error latency inherent in retry approaches...

Monetary Cost Optimizations for HPC Applications on Amazon Clouds: Checkpoints and Replicated Execution

I. MOTIVATION Recently, we have witnessed that many emerging high performance computing (HPC) or scientific computing applications are developed and hosted in the cloud. As those applications are usually long running jobs and are costly in the cloud, monetary cost [11], [7] and performance [3], [2] are important optimization factors. Message Passing Interface (MPI) is the key programming paradi...