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Learn how NASA Ames Research Center has been contributing to IT over the decades and about its recent contributions in supercomputing, modeling, and simulation; next-generation air-traffic management; intelligent systems; and complex data analysis.
Recent technological developments made available various many-core hardware platforms. For example, a SIMD-like hardware architecture became easily accessible for many users who have their computers equipped with modern NVIDIA GPU cards with CUDA technology. In this paper we redesign the maximal accepting predecessors algorithm for LTL model checking in terms of matrix-vector product in order to accelerate...
Branch prediction is an important topic in modern computer architecture research. Predictors attempt to improve the performance of a processor with a reasonable hardware cost. In the last decade, many prediction schemes have been developed in order to achieve this objective, each of them with different cost/performance tradeoffs. Identifying the optimal predictor for a given architecture and set of...
H.264/AVC (Advanced Video Codec) is a new video coding standard developed by a joint effort of the ITU-TVCEG and ISO/IEC MPEG. This standard provides higher coding efficiency relative to former standards at the expense of higher computational requirements. Implementing the H.264 video encoder for an embedded System-on-Chip (SoC) is a big challenge. For an efficient implementation, we motivate the...
An automatic task-to-processor mapping algorithm is analyzed in parallel systems that run over loosely coupled distributed architectures. The MPAHA (Model on Parallel Algorithms on Heterogeneous Architectures) model that allows predicting parallel application performance running over heterogeneous architectures is presented. In particular, the heterogeneity of both processors and communications is...
The arrival of multi-core chips has heightened interest in the discipline of parallel programming, a topic that has received much attention for many years. Computer architects have much to learn from sound principles for structuring software and expressing parallel computation. This talk will cover principles for the design of computer systems to support composable parallel software - the idea that...
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