Groupware systems are computer based systems which supports two or more users working in a tightly coupled fashion on a common task. This paper briefly introduc ess a family of concurrency control algorithms for groupware systems. These algo rithms maintain consistency without locking, and without rollback, within a dynam ic non-serializable environment. A consistency theorem for this family of...

In this paper, we present a new approach to synchronization in real-time systems. Existing methods for synchronization in real-time systems are pessimistic, and use blocking to enforce concurrency control. Protocols such as the priority ceiling protocol have been proposed to reduce the priority inversion that occurs when low priority tasks block high priority tasks. However, the priority ceilin...

Workflow management systems are gaining importance as an infrastructure for effectively managing business processes in several application domains. A workflow can typically be specified as a set of tasks, and coordinating relationships among these tasks. In an earlier work [1], Atluri et al. proposed an approach that can automatically redesign a workflow in such a way that it minimizes the numb...

one of the major criticisms leveled at task-based language teaching (tblt), despite its countless merits, is developing fluency at the cost of accuracy. the post-task stage affords a number of options to counteract this downside through task repetition and task recycling. these two options are considered to positively affect learners' oral performance in terms of fluency, accuracy, and complexi...

In most software development organizations, there is seldom a one-to-one mapping between software developers and development tasks. It is frequently necessary to concurrently assign individuals to multiple tasks, and to assign more than one individual to work cooperatively on a single task. A principal goal in making such assignments should be to minimize the effort required to complete each ta...

The concurrency control problem in database systems has been examined by many people and several concurrency control algorithms have been proposed. The most popular concurrency controls are two-phase locking and timestamp ordering. This paper reviews both algorithms and shows that they are special cases of a more general concurrency control algorithm. This concurrency control algorithm is descr...

Modern HPC systems are increasingly relying on greater core counts and wider vector registers. Thus, applications need to be adapted fully utilize these hardware capabilities. One class of that can benefit from this increase in parallelism molecular dynamics simulations. In paper, we describe our efforts at modernizing the ESPResSo++ simulation package by restructuring its particle data layout ...