Tivoli Workload Scheduler LoadLeveler

貴社のコンピューター・リソースを最大限に活用

IBM® Tivoli® Workload Scheduler (TWS) LoadLeveler® は、ユーザーがより多くのジョブをより短時間で実行することを可能にします。

IBM® Tivoli® Workload Scheduler (TWS) LoadLeveler® は、各ジョブの処理ニーズおよび優先順位を、使用可能なリソースおよび特定の指示とマッチさせることで、リソースの使用率を最大化する並行スケジューリング・システムです。

• 各マシンの使用を特定の回数、ユーザー、またはジョブ・クラスに制限したり、キーボードとマウスがアクティブでないときにのみマシンを使用可能にしたりすることで、リソースの厳格な管理を提供します。
• 各逐次ジョブまたは並行ジョブによって使用されたリソースの合計を追跡します。また、ジョブと使用率を、ユーザー、グループ、アカウント、またはタイプ別に特定の期間にわたって追跡するための、複数のレポート・オプションを提供します。
• マシン速度でチャージバック率を調整できます。また、リソース使用のチャージバックをサポートするために、各ジョブがアカウントを必要とするよう構成できます。
• ユーザー作成アプリケーションによる制御を可能にする API に加え、コマンド行インターフェースとグラフィカル・インターフェースの両方を提供します。
• 可用性の高い構成をサポートすることで信頼性の高い動作を保証し、使用可能な計算リソースを自動的に監視することでジョブが障害のあるマシンにスケジューリングされないようにします。
• AIX® Workload Manager (WLM) および System p™ ハードウェア用の IBM High Performance Switch (HPS) との統合が可能です。また、Blue Gene® マシン BG/L のアルゴリズムを搭載しています。
• ソリューション・シート: 「Maximize operational efficiencies and business resiliency (運用効率とビジネス・レジリエンスの最大化 )」
• サポートされるオペレーティング・システム: 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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• Solution sheet (216KB)
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