Showing papers on "Suite published in 1990"

Linear algebra support modules for approximation and other software

Abstract: Many problems in least-squares data approximation, modelling of discrete processes and other fields require suitable linear algebra modules for their solution. This paper describes a suite of modules which has been used extensively in practice for this purpose and which forms the core of a number of computer packages including the National Physical Laboratory’s Data Approximation Subroutine Library. The suite consists of routines that treat three types of structured linear system, viz those with banded, bordered and block-angular matrices, in addition to conventional systems with full matrices. The design of the suite is discussed, and the coverage of the suite given. Particular attention is paid to the use of the suite in solving rank-deficient least-squares problems.

Experience with the Suite distributed object model

Abstract: The Suite operating system is an extension of Unix that supports distributed, persistent, multiuser, and protected objects. The Suite object layer is used to create novel classes of interactive applications not found in traditional systems. These applications can be divided into loosely-coupled applications that is, applications consisting of components that execute in different address spaces residing possibly on different hosts and executing possibly on behalf of different users; and collaborative applications, that is, applications that allow multiple users interacting possibly from different workstations to share results in realtime. The design and implementation of some of the applications developed using Suite are outlined, and the positive and negative consequences of integrating objects with a conventional system are discussed. >

The VHDL validation suite

Abstract: A validation suite for the IEEE standard VHSIC Hardware Description Language (VHDL) is discussed along with its executive manager. Test points are generated from the VHDL LRM (language reference manual) syntax diagrams and sentences. Each test in the suite contains a test header which is specially formatted and keeps information such as test point, test objective, test result, and test type. The suit executive manager is menu-driven and efficiently classifies the tests based on different criterion defined in the test header. Coverage is defined to measure how closely a VHDL tool covers the LRM and is also computed by the suite executive manager. >

A prolog space benchmark suite: a new tool to compare prolog implementations

Abstract: s u i t e s compare o n l y t h e t i m e b e h a v i o r of t h e systems. The main reason f o r t h i s phenomenon c o n s i s t s i n t h e f a c t t h a t t h e t i m e spent d u r i n g a r u n o f a program can be e x t e r n a l l y measured w h i l e t h e space t h e program e) : e c u t i o n t o o k i n t e r n a l l y cannot be observed from o u t s i d e. In o t h e r words: space benchmark s u i t e s a r e h a r d e r t o c o n s t r u c t t h a n t i m e benchmark s u i t e s. normal u s e r s cannot i n t e r p r e t t h e v a l u e s o b t a i n e d by t h e r e s p e c t i v e o p t i o n. The l a c k o f space benchmark programs i s a d i s a d v a n t a g e s i n c e f o r P r o l o g a p p l i c a t i o n s space i s o f t e n a more c r i t i c a l s i z e t h a n t i m e such t h a t t h e assessment of t h e space q u a l i t y o f a P r o l o g system i s a v i r t u a l i n t e r e s t o f u s e r s. I n t h i s p a p e r , we f o …

Performance variation across benchmark suites

Abstract: The performance ratio between two systems tends to vary across different benchmarks. Here we study this variation as a "signature" or "fingerprint" of the systems under consideration. This "fingerprint" can be used to guess the performance of programs not represented in a benchmark suite, assess the breadth and credibility of the benchmark suite, and infer details of the system design.