Tivoli Workload Scheduler LoadLeveler

从计算资源中获得最大回报。

IBM® Tivoli® Workload Scheduler (TWS) LoadLeveler® 使用户能够以更少的时间运行更多的作业

它是一个并行调度系统，将每个作业的处理要求和优先级与可用资源和特定指示相匹配，以最大限度地利用资源。

• 交付严格的资源控制：可以将单个机器限制用于特定时间、用户或作业种类，或者只能在键盘和鼠标不活动的时候使用机器
• 跟踪每个串行或并行作业所占用的总资源，并提供数个报告选项，用于按照用户、组、账户或类型来跟踪指定时间周期内的作业和利用率
• 可以结合机器速度来调整收费率，并且可以配置为每项作业均需要一个账户，以支持资源使用的收费
• 提供命令行界面和图形用户界面，此外还支持用户编写的应用程序的 API 来控制它
• 支持高可用性配置，以确保可靠的运行，并自动监视可用的计算资源，以确保不会将作业分配给故障机器
• 与 AIX® Workload Manager (WLM) 和 IBM High Performance Switch (HPS) for System p™ 硬件整合，并包含用于 Blue Gene® machine BG/L 的算法
• “解决方案简介：最大化运行效率和业务弹性”
• 支持的操作系统：AIX、Linux

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Features, advantages and benefits

Features	Advantages	Benefits
Job Scheduling	Jobs are executed based on their priority, resource requirements and special instructions and not on the sequence of submission	Administrators can specify that long-running jobs run only on off-hours, that short-running jobs be scheduled around long-running jobs or that certain users or groups get priority. In addition, the resources themselves can be tightly controlled: use of individual machines can be limited to specific times, users or job classes or TWS LoadLeveler can use machines only when the keyboard and mouse are inactive
Easily scalable	Can easily scale up to thousands of processing nodes and thousands of parallel jobs in the job queue	Industrial strength, reliable and robust product. It is a completely distributed program with extensive failover and self-repair capabilities to survive even severe system events, usually without administrator intervention
Integration with IBM High Performance Switch (HPS) for pSeries® hardware	Integration with HPS for pSeries hardware extends the available resources	Enables immediate use of the scalable bandwidth and additional multitasking capabilities
Integration with AIX® Workload Manager (WLM)	Extends the capability of TWS LoadLeveler	Provides both resource specification on job start and resource utilization controls to prevent resource overuse by errant applications
Flexibility	Offers unprecedented flexibility with a complete array of APIs allowing a high level of site-specific customization	Offers job checkpointing and suspension with optional job cancellation, hold and re-queue. Provides great flexibility in defining real-time job and resource priority control

• Easily scalable to thousands of processing nodes and thousands of parallel jobs in the job queue, TWS LoadLeveler is an industrial-strength product that has been available on parallel computing platforms for 15 years.

• TWS LoadLeveler incorporates the latest technologies in parallel batch scheduling research. An early adopter of the backfill scheduling algorithm, IBM has continued to improve the speed, scalability and performance of this algorithm in TWS LoadLeveler.

• The first batch scheduler to offer a complete scheduling API, TWS LoadLeveler currently offers unprecedented flexibility with a complete array of APIs allowing a high level of site-specific customization.

• TWS LoadLeveler is a completely distributed program with extensive failover and self-repair capabilities to survive even severe system events, usually without administrator intervention.

• TWS LoadLeveler offers job check pointing and suspension with optional job cancellation, hold and re-queue. These capabilities provide great flexibility in defining real-time job and resource priority control.

• TWS LoadLeveler integrates with AIX Workload Manager (WLM) to provide both resource specifications on job start and resource utilization controls to prevent resource overuse by errant applications.

• A new TWS LoadLeveler algorithm is available for the Blue Gene® machine BG/L that extends TWS LoadLeveler's reliable performance to unprecedented scalability levels (on the order of tens of thousands of processors) within the Blue Gene family of machines.

• TWS LoadLeveler integrates easily with the IBM High Performance Switch (HPS) for pSeries hardware, enabling immediate use of the scalable bandwidth and additional multitasking capabilities

• IBM Tivoli Workload Scheduler for distributed and integrated end-to-end enterprise workload scheduling

• IBM Tivoli Dynamic Workload Broker for dynamic matching of workloads to best available resources within mainstream enterprise and Grid scheduling networks

• IBM Tivoli Workload Scheduler for Applications for extensive IBM Tivoli Workload Scheduler integration with SAP, Oracle and PeopleSoft business applications

• IBM Tivoli Workload Scheduler for z/OS for mainframe and integrated end-to-end enterprise workload scheduling

• IBM Tivoli Workload Scheduler for Virtualized Data Centers for providing integration between IBM Tivoli Workload Scheduler and Open Grid Services Architecture

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