The complexity of safety-related embedded computer systems is steadily increasing. Besides verifying that such systems implement the correct functionality, it is essential to verify that they also present an acceptable level of robustness. Robustness is in this thesis defined as the resilience of hardware, software or systems against errors that occur during runtime. One way of performing robus...

Understanding the application resilience in the presence of faults is critical to address the HPC resilience challenge. Currently we largely rely on random fault injection (RFI) to quantify the application resilience. However, RFI provides liŠle information on how fault tolerance happens, and RFI results are o‰en not deterministic due to its random nature. In this paper, we introduce a new meth...

Resilient computation has been an emerging topic in the field of high-performance computing (HPC) for several years. In particular, studies show that tolerating faults on leadershipclass supercomputers (such as exascale supercomputers) is expected to be one of the main challenges. In this paper, we utilize dynamic binary instrumentation and virtual machine based fault injection to emulate soft ...

The evaluation of a program’s behavior in the presence of transient faults is often a very time consuming work. In order to achieve significant data, thousands of executions are normally required and each execution will have the significant overhead of the fault injection environment. Our previously published methodology reduced significantly the time needed to evaluate the robustness of a prog...

We analyze the interaction between system virtualization and fault injection: (i) use of virtualization to facilitate fault injection into non-virtualized systems, and (ii) use of fault injection to evaluate the dependability of virtualized systems. We explore the benefits of using virtualization for fault injection and discuss the challenges of implementing fault injection in virtualized syste...

Problem. Among the various methods to perform Fault Injection, the technique of Software Fault Injection is getting more popular. In this technique, a special piece of code, associated to the system under test, tries to simulate faults. Generally, Fault Injection testing can be done by using a Fault Injection tool, and there is a number of them. However, there are no tools that work under each ...

The process of simple fault injection into Pspice simulation environment has the disadvantage of low efficiency and low degree of automation. To address this problem, a multi-fault injector is designed and implemented. It can not only be capable of the single fault injection, but also have the function of the batch injection for the same fault type. Firstly, this paper explains the fault inject...

The time of injection is an important aspect of fault injection. This paper proposes a novel approach for selecting the time of injection based on the usage pattern of SW components. By identifying sequences of service invocations on a SW component, its operations can be identified and targeted in a fine-grained manner to guide the timing of injection.

This paper introduces and explores the idea of data poisoning, a light-weight peer-architecture technique to inject faults into Python programs. This method requires very small modification to the original program, which facilitates evaluation of sensitivity of systems that are prototyped or modeled in Python. We propose different fault scenarios that can be injected to programs using data pois...