并行计算机中基于令牌的许可证管理

Token-based license management in parallel computer systems

提出一种适用于并行计算机系统的基于令牌的许可证管理模型。该模型将软件许可证的使用显式分开为申请与检出两步,许可证的释放分开为检入和回收两步,并由资源管理系统代理软件进行许可证资源的申请和回收。在此模型中,软件许可证的使用将由资源管理系统完全控制与调度,避免了现有模型中存在的资源管理系统外作业使用许可证、作业错误指定许可证信息、应用进程残留等情景下,出现用户作业因许可证不可用而造成的运行失败或资源浪费。设计了两种在现存遗留应用软件和许可证管理软件上实现基于令牌的许可证管理模型的方法,充分表明了此模型的现实意义。

A token-based license management model is proposed for parallel computer systems. In this model, license using is separated into two steps, license allocation and license check-out, namely. Accordingly license release is separated into check-in and return. License allocation and return may be performed by the resource management system for the application software. Under this model, the use of licenses is controlled by the resource management system totally, avoiding conditions such as license check-out out of resource management system, wrong number of licenses specified for jobs, and applica- tion process hang, which results in job failures and resource wasting. Two implementation mechanisms mapping this token-based model to currently popular application environment are designed for legacy ap- plications and license managers, which show the feasibility and significance of the model.