10 research outputs found

    Human factors in the design of parallel program performance tuning tools

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    Matching ability with jobs using AMAS: final report

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    AMAS (Activity Matching Ability System) was developed 20 years ago by Loughborough University and was designed to help young disabled / disadvantaged people to enter the labour market. It is a tool that assesses the ergonomics aspects of jobs (the activities) and the abilities of an individual. The two sets of information are then matched and the results talked through with the individual to see if a good match has been obtained. Early versions of AMAS had a strong manufacturing focus that did not easily lend itself to a varied and developing labour market. The feedback from Employment Service staff, including Occupational Psychologists and Disability Employment Advisers, who used the early version of AMAS was that it was helpful but needed updating

    Can the activity matching ability system contribute to employment assessment? An initial discussion of job performance and a survey of work psychologists views

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    Employment Assessment (EA) is concerned with enabling individuals to predict their performance in job opportunities. Job performance and its analysis are key concerns for organisational psychology, although progress is required to develop their utility for EA client work. The Activity Matching Ability System (AMAS) assesses job activities and individuals' abilities and may contribute to EA. In order to begin to explore this possibility, and whether other significant factors might improve EA, a survey was run in parallel with a sample of Work Psychologist (WP) interviews (n=238). Interviewee characteristics (age, ethnic background, etc.) and WP estimates of impact of disability and probability of obtaining employment indicated a varied group, younger than other samples. WPs found that AMAS would enhance EA for one fifth of the sample. AMAS could contribute by aiding exploration of physical and cognitive factors, by providing a focus for assessment, by reviewing what individuals can do at work and by helping confidence. They considered EA would be improved by developing assessments of interpersonal skills, team working, job specific skills and aptitudes, and work placements. Cross tabulation of the data indicated that WP views were not significantly associated with any of the factors researched

    The Tuner's Workbench: A Tool to Support Tuning in the Large

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    . The evident difficulties in creating efficient parallel programs have encouraged the development of computer-based support tools for performance analysis. Our work focuses on gaining a better understanding of the task of performance analysis and tuning, and using this to establish where computer-based support can be most effectively applied. We distinguish between the difficulties inherent in tuning in the small and in tuning in the large and relate these to the design of the Tuner's workbench. 1. Introduction Parallel program performance analysis and tuning is concerned with achieving efficient utilization of machine resources. One common technique is to collect trace data and then analyse it for possible causes of poor performance. The source code is then modified in the light of the analysis. In practice, tuning a parallel program is a much more difficult task than this brief sketch suggests. Our work has been to identify what aspects of tuning would most benefit from computer-..

    Performance evaluation and visualisation with VISPAT

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    A tool for performance analysis of parallel programs implemented using the MPI message passing standard is presented. The paper discusses the way information about program execution is gathered, processed and visualized by the graphical front end of the tool. Emphasis is placed on demonstrating how the tool helps the tuner to reduce the volume of data that has to be examined and to relate the behaviour of the program to the source cod
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