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Over the last decade, homogeneous multi-core processors emerged and became the de-facto approach for offering high parallelism, high performance and scalability for a wide range of platforms. We are now at an interesting juncture where several critical factors (smaller form factor devices, power challenges, need for specialization, etc) are guiding architects to consider heterogeneous chips and platforms...
In current Chip-multiprocessors (CMPs), a significant portion of the die is consumed by the last-level cache. Until recently, the balance of cache and core space has been primarily guided by the needs of single applications. However, as multiple applications or virtual machines (VMs) are consolidated on such a platform, researchers have observed that not all VMs or applications require significant...
Diverse computers interconnected via mixed network equipments are commonly available parallel architecture now, and achieve good performance/price ratio. As an important parallel communication tool, MPI system is a natural choice to support heterogeneous computing platform. The paper classifies the definition of heterogeneity into three categories, and presents the issues of them in detail respectively...
The Fast Fourier Transform (FFT) has been considered one of the most important computing algorithms for decades. Its vast application domain makes it an important performance benchmark for new computer architectures. The most common Cooley-Tukey FFT algorithm factorizes a large FFT into a combination of smaller ones. The choice of factors and the order in which they are applied are critical to the...
In order to further reduce test data storage and test power of deterministic BIST based on LFSR reseeding and scan slice overlapping scheme, two optimization algorithms are proposed. One algorithm is to reorder scan cell by random exchanging two scan cells considering layout constraint in every loop. If both the number of specified bits and the number of overlapping blocks after exchanging operation...
Numbers of proposals to incorporate delegation into secure service management have been seen the last years. How to assure that only the authorized users can fulfill specify services is one of the main problems for secure service management. Delegation is a mechanism that permits a user to assign a subset of his/her assigned authorizations to other users who currently do not possess the authorization...
A wide spectrum of e-commerce (B2B/B2C), banking, financial trading and other business applications require the exchange of data to be highly secure. The Secure Sockets Layer (SSL) protocol provides the essential ingredients of secure communications - privacy, integrity and authentication. Though it is well-understood that security always comes at the cost of performance, these costs depend on the...
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