This paper considers various parallelization schemes and applies them to concurrent computation of algebraic fractals on IBM SP3 and SGI Onyx 3400 systems. We adapt the time complexity bounds of parallel Monte Carlo methods to predict the execution time behavior of these schemes. Nous étudions plusieurs méthodes de parallélisation appliquées au calcul simultané de plusieurs objets fractals algé...

Reconfigurable computing, typically deployed using Field-Programmable Gate Arrays (FPGAs), is a technology that is ideally suited to exploit the fine-grained parallelism that exists in many algorithms and applications. SGI is a manufacturer of large-scale, high-performance computer systems and has recently developed an FPGA-based node that is integrated into its interconnect architecture. Exegy...

In late 1994, SGI released an advanced, journaled file system called XFS on IRIX, their System-V-derived version of UNIX. Since that time, XFS has proven itself in production as a fast, highly scalable file system suitable for computer systems ranging from the desktop to supercomputers. In early 1999, SGI announced that XFS would be released under an open source license and integrated into the ...

This paper compares the performance and scalability of SHMEM and MPI-2 one-sided routines on different communication patterns for a SGI Origin 2000 and a Cray T3E-600. The communication tests were chosen to represent commonly used communication patterns with low contention (accessing distant messages, a circular right shift, a binary tree broadcast) to communication patterns with high contentio...

It was recently shown that block-circulant preconditioners applied to a conjugate gradient method used to solve structured sparse linear systems arising from 2D elliptic problems have very good numerical properties and a potential for good parallel efficiency. The aim of the presentation is to summarize and compare their parallel performance across a number of modern parallel computers: SGI Pow...

Satellite-observed night-time light (NTL) data provide a measure of the lighting brightness seen from space at different times and spatial temporal resolutions, thus offering opportunities to explore them in many applications locations (global, regional, local). However, most date have been relatively large scales, despite need indicators local level. This paper sets out an analysis potential N...

5 Convert data from plate order to multi-dimensional SGI-arrary 11 5.1 Preliminaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.2 Parse plate barcodes to annotate the plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.3 Reorder data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

Visual parallel programming environments significantly can help nonexperienced end-users to write their applications for parallel computers or other parallel/distributed platforms. P-GRADE is an integrated visual programming environment that supports the whole life-cycle of parallel program development. It also facilitates fast reengineering of sequential programs into parallel ones. A unified ...

We have developed a high-performance FFT on SGI Altix 3700, improving the efficiency of the floating-point operations required to compute FFT by using a kind of loop fusion technique. As a result, we achieved a performance of 4.94 Gflops at 1-D FFT of length 4096 with an Itanium 2 1.3 GHz (95% of peak), and a performance of 28 Gflops at 2-D FFT of 4096 with 32 processors. Our FFT kernel outperf...

5 Convert data from plate order to multi-dimensional SGI-arrary 11 5.1 Preliminaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.2 Parse plate barcodes to annotate the plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.3 Reorder data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....