POSIX Threads and OpenMP were used to implement parallelism in the nuclear reactor transient analysis code PARCS on multiprocessor SUN and SGI workstations. The achievable parallel performance for practical applications is compared for each of the code modules using POSIX threads and OpenMP. A detailed analysis of the cache misses was performed on the SGI to explain the observed performance. Co...

The parallel numerical solution of large scale elliptic boundary value problems is discussed. We analyze the parallel complexity of two block-circulant preconditioners when the conjugate gradient method is used to solve the sparse linear systems arising from such problems. A simple general model of the parallel performance is applied to the considered shared memory parallel architecture. Estima...

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...

Earnings manipulation involves alteration, adjustment, exploitation, and even timing of transactions in financial statements with the intention to report a sound economic performance company. This act could jeopardize company’s long run also make its stakeholders suffer significant losses. Therefore, tool detect or predict earnings would be helpful stakeholders, practitioners, regulators, acade...

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 ...