We discuss issues in the design and implementation of a flexible debugging tool and its integration into a parallel software engineering environment.

This paper describes a debugging interface that has been developed for a parallel software engineering environment and that was developed on top of the PVM environment in the scope of the SEPP and HPCTI projects of the COPERNICUS Program. The main goal of this interface is to provide the basic debugging functionalities that are required by some components of that environment. We give special attention to the requirements posed by high-level tools of the environment, and to the need of providing a flexible debugging support layer that can be suitably adapted and extended. We present the system logical architecture and the interface specification of the debugging engine. We discuss its interfacing with other components of the environment, namely a graphical editor for the GRAPNEL visual parallel programming language, and a testing tool. We finally describe current work on the improvement of the debugging engine. Keywords: Debugging, monitoring, parallel processing, software tools.

This paper describes a debugging interface that has been developed for a parallel software engineering environment and that was developed on top of the PVM environment in the scope of the SEPP and HPCTI projects of the COPERNICUS Program. The main goal of this interface is to provide the basic debugging functionalities that are required by some components of that environment. We give special attention to the requirements posed by high-level tools of the environment, and to the need of providing a flexible debugging support layer that can be suitably adapted and extended. We present the system logical architecture and the interface specification of the debugging engine. We discuss its interfacing with other components of the environment, namely a graphical editor for the GRAPNEL visual parallel programming language, and a testing tool. We finally describe current work on the improvement of the debugging engine. Keywords: Debugging, monitoring, parallel processing, software tools.

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We discuss issues in the design and implementation of a flexible debugging tool and its integration into a parallel software engineering environment.

The aim of this work is to provide the basis for the interpretation, under steady state and in the low-voltage regime of the dark current-density-voltage (J-V) characteristics of transverse asymmetric amorphous silicon (a-Si:H) p-i-n and n-i-p diodes. The transverse asymmetric a-Si:H diodes present ratios between the metal contact and the underneath doped layer areas larger than five, leading to the inclusion, in the diode equation, of a lateral leakage current, responsible for the high saturation current density and the forward shape of the J-V curves recorded. The leakage current depends on the lateral spatial potential developed with which varies following a power-law dependence. The experimental J-V curves in diodes with the doped layer around the metal contact unetched and etched prove the role and origin of this lateral leakage current and, thus, the proposed model. © 1995 American Institute of Physics.

The aim of this work is to provide the basis for the interpretation of the steady state lateral photoeffect observed in p-i-n a-Si:H 1D Thin Film Position Sensitive Detectors (1D TFPSD). The experimental data recorded in 1D TFPSD devices with different performances are compared with the predicted curves and the obtained correlation's discussed.

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A sociologia tem como objecto de análise a acção social e a sua expressão nas relações sociais. Estas relações estão organizadas de múltiplas formas, e conhecem infinitos tipos de interacções humanas. No entanto, o conjunto de relações em que os indivíduos se opõem ou criam laços de solidariedade fundamenta-se e verifica-se na esfera da produção. É efectivamente neste domínio que a conduta humana encontra uma das suas mais importantes determinações. Assim, o desenvolvimento da organização industrial acabou por fornecer verdadeiramente algumas das características essenciais da sociedade moderna. Uma delas é o fenómeno da especialização que se acentuou particularmente na indústria e acabou por abraçar praticamente todos os outros domínios da actividade humana.