48,471 research outputs found
A DevOps approach to integration of software components in an EU research project
We present a description of the development and deployment infrastructure being created to support the integration effort of HARNESS, an EU FP7 project. HARNESS is a multi-partner research project intended to bring the power of heterogeneous resources to the cloud. It consists of a number of different services and technologies that interact with the OpenStack cloud computing platform at various levels. Many of these components are being developed independently by different teams at different locations across Europe, and keeping the work fully integrated is a challenge. We use a combination of Vagrant based virtual machines, Docker containers, and Ansible playbooks to provide a consistent and up-to-date environment to each developer. The same playbooks used to configure local virtual machines are also used to manage a static testbed with heterogeneous compute and storage devices, and to automate ephemeral larger-scale deployments to Grid5000. Access to internal projects is managed by GitLab, and automated testing of services within Docker-based environments and integrated deployments within virtual-machines is provided by Buildbot
Extending ROOT through Modules
The ROOT software framework is foundational for the HEP ecosystem, providing
capabilities such as IO, a C++ interpreter, GUI, and math libraries. It uses
object-oriented concepts and build-time components to layer between them. We
believe additional layering formalisms will benefit ROOT and its users. We
present the modularization strategy for ROOT which aims to formalize the
description of existing source components, making available the dependencies
and other metadata externally from the build system, and allow post-install
additions of functionality in the runtime environment. components can then be
grouped into packages, installable from external repositories to deliver
post-install step of missing packages. This provides a mechanism for the wider
software ecosystem to interact with a minimalistic install. Reducing
intra-component dependencies improves maintainability and code hygiene. We
believe helping maintain the smallest "base install" possible will help
embedding use cases. The modularization effort draws inspiration from the Java,
Python, and Swift ecosystems. Keeping aligned with the modern C++, this
strategy relies on forthcoming features such as C++ modules. We hope
formalizing the component layer will provide simpler ROOT installs, improve
extensibility, and decrease the complexity of embedding in other ecosystemsComment: 8 pages, 2 figures, 1 listing, CHEP 2018 - 23rd International
Conference on Computing in High Energy and Nuclear Physic
Neural Machine Translation Inspired Binary Code Similarity Comparison beyond Function Pairs
Binary code analysis allows analyzing binary code without having access to
the corresponding source code. A binary, after disassembly, is expressed in an
assembly language. This inspires us to approach binary analysis by leveraging
ideas and techniques from Natural Language Processing (NLP), a rich area
focused on processing text of various natural languages. We notice that binary
code analysis and NLP share a lot of analogical topics, such as semantics
extraction, summarization, and classification. This work utilizes these ideas
to address two important code similarity comparison problems. (I) Given a pair
of basic blocks for different instruction set architectures (ISAs), determining
whether their semantics is similar or not; and (II) given a piece of code of
interest, determining if it is contained in another piece of assembly code for
a different ISA. The solutions to these two problems have many applications,
such as cross-architecture vulnerability discovery and code plagiarism
detection. We implement a prototype system INNEREYE and perform a comprehensive
evaluation. A comparison between our approach and existing approaches to
Problem I shows that our system outperforms them in terms of accuracy,
efficiency and scalability. And the case studies utilizing the system
demonstrate that our solution to Problem II is effective. Moreover, this
research showcases how to apply ideas and techniques from NLP to large-scale
binary code analysis.Comment: Accepted by Network and Distributed Systems Security (NDSS) Symposium
201
Requirements for the workflow-based support of release management processes in the automotive sector
One of the challenges the automotive industry currently has to master is the complexity of the electrical/elctronic system of a car. One key factor for reaching short product development cycles and high quality in this area are well-defined, properly executed test and release processes. In this paper we show why workflow management technology is needed to support these processes and how this support should look like. We further confront these requirements with the features of contemporary workflow technology and discuss which extensions become necessary
Teaching Concurrent Software Design: A Case Study Using Android
In this article, we explore various parallel and distributed computing topics
from a user-centric software engineering perspective. Specifically, in the
context of mobile application development, we study the basic building blocks
of interactive applications in the form of events, timers, and asynchronous
activities, along with related software modeling, architecture, and design
topics.Comment: Submitted to CDER NSF/IEEE-TCPP Curriculum Initiative on Parallel and
Distributed Computing - Core Topics for Undergraduate
CONFIGEN: A tool for managing configuration options
This paper introduces CONFIGEN, a tool that helps modularizing software.
CONFIGEN allows the developer to select a set of elementary components for his
software through an interactive interface. Configuration files for use by
C/assembly code and Makefiles are then automatically generated, and we
successfully used it as a helper tool for complex system software refactoring.
CONFIGEN is based on propositional logic, and its implementation faces hard
theoretical problems.Comment: In Proceedings LoCoCo 2010, arXiv:1007.083
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