Bearing in mind the considerable distances between natural gas fields and consumers’ appliances, transport by gas pipelines remains the most competitive means. These gas pipelines which are generally made of steel pipes may contain however several types of defects of various origins and which are susceptible to initiate cracks which may grow under some circumstances to such extent as to lead to...

We designed heuristics for applying the list scheduling algorithm to processors with complex pipelines. On these processors the pipeline can stall due to resource contention (structural hazards) in addition to the usual data hazards. Conventional heuristics consider only data hazards. Our heuri-stics reduce structural hazards, too. Code with much instruction-level paral-lelism is optimized to a...

In this paper, we present a methodology for mapping an Embedded Signal Processing (ESP) application onto HPC platforms such that the throughput performance is maximized. Previous approaches used a linear pipelined execution model which restrict the mapping choices. We show that the \optimal" solution obtained under that model can be improved, using the proposed execution model. Based on the new...

Mainstream operating systems are starting to face the need for support of multi-core platforms. We argue that pipeline parallelism is one of the practical ways to utilize performance offered by multiple cores with minimal changes to the existing software stack. Similar to the organization of hardware processors, execution of a system can be structured as a set of pipeline stages running in para...

Extensive research work has been reported on the scheduling of hardware pipelines and software pipelining independently, One interesting problem is how to extend hardware pipeline theory to handle software pipelined loops in user programs. More specifically , the problem is how to maximize the utilization of hardware resources under modulo scheduling for a given II. In this paper, we develop a ...

An equation was developed for calculating the time to failure by slow crack growth (SCG) failure in any polyethylene structure. The equation requires the following experimental inputs: (1) the resistance to SCG as measured by the PENT test (ASTM F1473), (2) the stress intensity of the defect from which failure originates, and (3) the temperature. A simple experiment for determining the stress i...

The performance, cost, and flexibility of commodity multi-core systems make them appealing for threaded applications. Unfortunately, popular threading techniques require independent code regions, use expensive synchronization primitives, and use expensive communication mechanisms. Recently, researchers have proposed several Concurrent Threaded Pipeline architectures (CTP) which relax the data i...

Humanoid three-dimensional (3D) models can be easily acquired through various sources, including through online marketplaces. The use of such models within a game or simulation environment requires human input and intervention in order to associate such a model with a relevant set of motions and control mechanisms. In this paper, we demonstrate a pipeline where humanoid 3D models can be incorpo...

This paper presents work-in-progress to build a confidence-based in-kernel pipeline execution performance interface to a fixed priority deadline monotonic scheduler. The interface provides performance-controlled pipeline execution, allowing applications to specify expected execution times, negotiate desired deadline confidence and to configure and control pipelines. The confidence-based schedul...