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The Harness Workbench: Unified and Adaptive Access to Diverse HPC Platforms. Christian Engelmann Computer Science Research Group Computer Science and Mathematics Division Oak Ridge National Laboratory. Existing scientific application development and deployment issues.

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the harness workbench unified and adaptive access to diverse hpc platforms

The Harness Workbench: Unified and Adaptive Access to Diverse HPC Platforms

Christian Engelmann

Computer Science Research Group

Computer Science and Mathematics Division

Oak Ridge National Laboratory

existing scientific application development and deployment issues
Existing scientific applicationdevelopment and deployment issues
  • The diversity of HPC platforms and associated software complexity often pose challenges that lead to slow or hampered scientific discovery.
  • Application scientists expend considerable time and effort dealing with development, deployment, and runtime interfacing activities.
  • Additionally, the short HPC system deployment and upgrade interval requires frequent redeployment of scientific application to different system software stacks.
research and development goals
Research and development goals
  • Increasing the overall productivity of developing and executing computational codes
  • Optimizing the development and deployment processesof scientific applications
  • Simplifying the activities of application scientists, using uniform and adaptive solutions
  • “Automagically” supporting the diversity of existing and emerging HPC architectures

Typical scientific application development, deployment, and execution activities

harness workbench core components
Harness workbench core components
  • Harness Workbench Toolkit
    • Unified development, deployment, and execution
    • Common view across diverse HPC platforms
    • User-space installation and virtual environments
  • Next-generation runtime environment
    • Flexible, adaptive, lightweight framework
    • Management of runtime tasks
    • Support for diverse HPC platforms
harness workbench core technologies
Harness workbench core technologies
  • Automatic adaptation using pluggable modules
    • Harness Workbench Toolkit plug-ins
    • Runtime environment plug-ins
  • Development environment and toolkit interfaces
    • Easy-to-use interfaces for scientific application development, deployment, and execution
common view across diverse platforms
Common view across diverse platforms
  • Various interfaces and bindings to external development and deployment tools and environments
  • Generalized modelfor unified access to common development and deployment activities
  • Mapping of generalized activities onto platform-specific toolkits and runtime environments (RTEs) via pluggable modules
harness workbench toolkit
Harness Workbench Toolkit
  • Unifying abstraction over heterogeneous HPC resources
  • Command line and GUI tools
  • Translation into fine-tuned invocations of native toolkits
  • Behavior encapsulated in plug-ins
  • Configurable through profiles
  • Tunable by end users
next generation runtime environment
Next-generation runtime environment
  • Uniform interface to various front-end systems
  • Virtualized baseline platform runtime environment capabilities
  • Advanced runtime environment capabilities via high-level plug-ins
virtualized environments
Virtualized environments
  • Problem:
    • Application dependencies may cause conflicts with system-wide installed libraries.
  • Solution:
    • Use co-existing, alternative user-space installations.
  • Approach:
    • Provide isolated installation environments (“sandboxes”).
    • These can inherit from one another to build nested hierarchies.
  • Virtualized adaptation of system properties to actual application needs
  • System and runtime environment virtualization
configurable sandboxes for scientific applications

1.Install environment

2. Execute application

hwb – env install conf

hwb – env start conf application

Application

2.3 Execute application

Runtime configuration

2.2 Configure runtime

environment configuration

Runtime environment

System configuration

2.1 Start Harness runtime environment

1.1 Configure

system configuration

System

Configurable “sandboxes” for scientific applications

Virtualized environment

XML configuration description

Scientific

application

the harness workbench unified and adaptive access to diverse hpc platforms1
The Harness workbench: Unified and adaptive access to diverse HPC platforms
  • Virtualized adaptation of system properties to actual application needs
  • System and runtime environment virtualization
contacts
Contacts

Christian Engelmann

Computer Science Research Group

Computer Science and Mathematics Division

(865) 574-3132

engelmannc@ornl.gov

Al Geist

Oak Ridge National Laboratory

(865) 574-3153

gst@ornl.gov

Jack Dongarra

University of Tennessee

(865) 974-8295

Vaidy Sunderam

Emory University

(404) 727-5926

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