SCEC Earthworks Science Gateway: Widening SCEC Community Access to the TeraGrid

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SCEC Earthworks Science GatewayWidening SCEC
Community Access to the TeraGrid
Philip Maechling SCEC IT Architect www.scec.org/cm
e TeraGrid 2006 13 June 2006
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Outline

• Southern California Earthquake Center
• Goals
• Implementation
• Future Plans

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• Southern California Earthquake Center
• Involves 500 scientists at 55 institutions
  worldwide
• Focuses on earthquake system science using
  Southern California as a natural laboratory
• Translates basic research into practical products
  for earthquake risk reduction

SCEC Focus Groups
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SCEC Member Institutions(October 1, 2005)
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SCEC/CME Project
Goal To develop a cyberinfrastructure that can
support system-level earthquake science the
SCEC Community Modeling Environment (CME)
Support 5-yr project funded by the NSF/ITR
program under the CISE and Geosciences
Directorates Oct 1, 2001 Sept 30, 2006
NSF CISE GEO
SCEC/ITR Project
USGS
ISI
Information Science
Earth Science
SDSC
IRIS
SCEC Institutions
www.scec.org/cme
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Scenario Earthquake Simulations Puente Hills
Peak SA 2.0 magnitude Map
Velocity Y Component Animation
Puente Hills Simulation Scenario Earthquake (10
Hz) Robert Graves (AWM), Amit Chourasia et al
(Viz)
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Pathway 2 TeraShake Platform
M7.7 Earthquake on Southernmost San Andreas Fault
Olsen et al. (2006)
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Southernmost San Andreas M7.7
NW?SE
NW?SE
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Outline

• Southern California Earthquake Center
• Goals
• Implementation
• Plans

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Outline

• SCEC Earthworks Science Gateway goal is to allow
  users to run wave propagation simulations.
• Seismological Researchers
• Grad Students
• Public Interest in resulting data products
• Many of these target users are not used to using
  high performance computing.

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Use of Wave Propagation Simulations

• Uses of Wave propagation results include
• Testing of alternative geological and
  computational models.
• Validation of source mechanism for actual
  earthquake.
• Determination of slip distribution for actual
  earthquake
• Synthetic ShakeMap for actual earthquake.
• Educational or informative animations of effects
  of actual earthquake.

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Testing of alternative geological and
computational models.
Olsen AWM
CVM 3.0
Harvard VM 1.0
Hadley-Kanamori
Hollywood EQ Mw 4.23, 6.98 depth 24x24x12 km
region (160x160x80 nodes) (Dx150 m)
CMU AWM
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Pathway-2 Comparisons for 09/03/02 Yorba Linda
EarthquakeData in black, SCEC CVM (FD) in blue,
Harvard model (SEM) in red
Validation of source mechanism for actual
earthquake.
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Observed ShakeMap for Actual Event
Synthetic ShakeMap for actual earthquake could
be compared to this actual ShakeMap.
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Outline

• Southern California Earthquake Center
• Goals
• Implementation
• Plans

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SCEC Earthworks Science Gateway

• Applied for a Science Gateway Allocation and
  award started in April 1, 2006 (lt 3 months).
• SCEC Earthworks integrates a wide variety of
  capabilities that have been developed on the
  SCEC/CME Project over several years.
• Incorporates a lot of Lessons learned over the
  SCEC/CME ITR Project.

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SCEC Earthworks Science Gateway Basic
Capabilities

• Configure earthquake wave propagation
  simulations.
• Submit simulation for execution as workflow.
• Workflow executes across distributed grid
  environment including
• SCEC, USC HPCC, and TeraGrid
• Monitoring of workflow status.
• Data products registered with metadata into
  digital library
• Data discovery tools using metadata searches
• Data Retrieval for data products of interest

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SCEC Earthworks Key Technologies

• JSR 168 compliant Portal
• Grid-based workflow job submission using standard
  SCEC/CME Pegasus/VDS software stack
• Workflow-based file and metadata management using
  MCS/RLS
• Automated metadata production and registration
  for all data products.
• Long term storage of data products in Storage
  Resource Broker (SRB).

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SCEC Earthworks Key Compromises

• Limited workflow components to simplify workflow
  creation.
• Well-defined (and limited) data product creation.
• Data products re-used not supported.

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SCEC Earthworks Science Gateway
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SCEC Workflow System Software Stack

• Pegasus Meta-scheduler
• Ability converting abstract workflows to concrete
  workflows
• Automatic expansion of workflows to stage and
  transfer files.
• Virtual Data System (VDS)
• Includes Condor, Globus
• Job scheduling including condor glide-in
  provisioning for embarrisingly parallel execution
  on cluster
• Metadata Catalog Service
• Metadata archive and data discovery
• Replica Location Service
• Mapping logical files to physical files
• Globus
• GSI security supported at USC and TeraGrid.
  GridFTP for data transfer. Support for Condor job
  scheduling.
• Storage Resource Broker Client (SRB Server at
  SDSC).

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Simulation Configuration Interface
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Workflow Status Display
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Example SCEC Earthworks Science Gateway Metadata
Registered into SRB

• simulation_codeauthorKim_Olsen
• simulation_codenamepmvl3d
• simulation_codetypeFDuniform
• simulation_languagefortran
• simulation_memarchMPI
• simulation_indexorderxyz
• simulation_indexsign_x1
• simulation_indexsign_y1
• simulation_indexsign_z1
• simulation_mesh_fencepost2
• simulation_sensor_typevelocity
• simulation_sensor_meshloccenter
• region_latlong_ellipsoidWGS-84
• region_UTM_zone11
• region_depth_shallow0.0
• region_depth_deep4875.0
• region_origin_definitionlat_long
• region_origin_latitude34.2500000
• region_origin_longitude-118.6000000

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Data Discovery Through Metadata Search
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SRB-based Product Storage and Data Access
SRB registration includes metadata-based
simulation discovery and seismogram extraction.
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Outline

• Southern California Earthquake Center
• Goals
• Implementation
• Plans

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Future Plans

• Future planned developments for SCEC Earthworks
  include
• Add additional Data products
• Animations
• Matching Synthetic and observed seismograms
• More computational codes integrated into system.
• Partial workflows and re-use of data products

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SDSC Visualization Services Request Interface

• Collaborating on automated creation of animation
  with SDSC Visualization Services Group.
• Defined a Visualization Service Request Interface
• Registered example data sets into SRB for testing
• Example Methods in Interface
• String Request_identifier visualization_service_r
  equest(string url_to_service_request)
• String Status_string visualization_service_status
  (string request_identifier)
• String Visualization_url animation_location(string
  request_identifier)
• May be able to contribute visualizations to
  California Integrated Sesismic Network
  Information Distribution System.

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Future Plans for SCEC Earthworks Science Gateway

• Goal is automated execution of wave propagation
  simulation after actual earthquake.
• Pull researchers and public into SCEC site when
  there interest is high.
• Allow SCEC researcher to reconfigure and resubmit
  revised simulations.

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Conclusions

• SCEC Earthworks Science Gateway provides access
  to TeraGrid computing capabilities to community
  members that do not usually use supercomputers.
• Production of specific data products provides
  interest to community that does not run the code.

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End