This paper describes Tulip, a parallel run-time system used by the pC++ parallel programming language. Tulip has been implemented on a variety of scalable, MPP computers including the IBM SP2, Intel Paragon, HP/Convex SPP, Meiko CS2, SGI Power Challenge, and Cray T3D. Tulip differs from other data-parallel RTS implementations; it is designed to support the operations from object-parallel progra...

In this tutorial we present SvPablo, a graphical source code browser and performance visualizer that integrates the University of Illinois Pablo project's dynamic performance instrumentation software with HPF and C compilers and with the MIPS R10000 hardware performance mechanism. The following topics will be covered in the tutorial: an introduction to the SvPablo environment, including an over...

Fabrication of the strain-gated inverter (SGI) The SGI was fabricated by bonding two ZnO NWs laterally on a Dura-Lar film. The thickness of the Dura-Lar film is 0.5 mm. The ZnO NWs were synthesized via a physical vapor deposition method reported elsewhere [32] and typically have diameters of 300 nm and lengths of 400 μm (Fig. 1a). The films were first cleaned with acetone, isopropyl alcohol and...

This paper presents parallel algorithms for computing multi-dimensional wavelet transforms on both shared memory and distributed memory machines. Traditional data partitioning methods for n-dimensional Discrete Wavelet Transforms (DWTs) call for data redistribution once a one dimensional wavelet transform is computed along each dimension. To avoid the data communication inherent in this redistr...

Si riportano i risultati ottenuti utilizzando un metodo del punto interno combinato con l’algoritmo dei gradienti coniugati precondizionati per la risoluzione di alcune applicazioni di grandi dimensioni su Cray T3E ed SGI Origin 2000. La prima applicazione riguarda problemi di programmazione stocastica e di ottimizzazione robusta, mentre la seconda deriva dalla riformulazione di una speciale cl...

Face detection is applied to many tasks such as auto focus control, surveillance, user interface, and face recognition. Processing speed and detection accuracy of the face detection have been improved continuously. This paper describes a novel method of fast face detection with multi-scale window search free from image resizing. We adopt statistics of gradient images (SGI) as image features and...

The present paper discusses scalable implementations of sparse matrix-vector products, which are crucial for high performance solutions of large-scale linear equations, on a cc-NUMA machine SGI Altix3700. Three storage formats for sparse matrices are evaluated, and scalability is attained by implementations considering the page allocation mechanism of the NUMA machine. Influences of the cache/m...

In this work we present a high performance micro gas chromatograph column with a novel two dimensional axial heating technique for faster and more precise temperature programming, resulting in an improved separation performance. Three different axial resistive heater designs were simulated theoretically on a 3.0 m × 300 μm × 50 μm column for the highest temperature gradient on a 22 by 22 μm col...