Optimal Code Scheduling for Multiple Pipeline Processors

Pipelining the functional units and memory interface of processors can result in shorter cycle times and dramatic increases in performance, but only if the pipeline delays can be hidden by other useful operations. The portion of pipeline delays which is not hidden results in an extension of the total execution time, either implemented by hardware interlocks or by compile-time insertion of NOPs (Null Operations). By rearranging instructions, it is possible to minimize the total pipelined execution time, but the problem of finding this optimal code schedule is well known to be NP-complete. In this thesis, we describe a code scheduler for multiple pipeline processors where each pipeline may have a different latency and enqueue time. Previous approaches simplify the search for a good schedule by arbitrarily imposing constraints which sacrifice optimality; the technique given in this paper uses a new set of pruning criteria which preserves optimality. Although, in the interest of reducing compile time, the new technique permits the search to be truncated, this truncation only rarely (in less than 2% of the cases examined) sacrifices optimalit

Achieving Job Satisfaction Through Spirituality: A Case Study of Muslim Employees

<p>The present study explores the role of spirituality in achieving job satisfaction. Divine Economics Framework is used for quantifying the interrelationships between spirituality and worklife using empirical data of 383 workers from 5 districts of Azad Kashmir. The study analyzed the effect of spirituality level of workers on their subjective evaluation of their worklife (job satisfaction).  An index of workers’ spirituality is developed using Principle Component Analysis (PCA). The literature on theology and philosophy indicates that spirituality has many types which may lead to produce a systematically different human behavior. To test whether or not workers having different levels of spirituality have the same job satisfaction, Logistic regression technique is used. The results of given sample revealed that besides the conventional variables such as income, age, education, health, and job sector, a particular type of spirituality is a significant predictor of workers’ job satisfaction. Our estimates relating to selected dimension of spirituality are presented to serve as new insights for further research in different types of spirituality at workplace. This study concludes that the Divine Economics Framework is relatively more capable to analyze economics of spirituality. The future research may utilize this framework to study the interrelationships of spirituality with workplace as well as other areas of economics.</p