TOPS-2 Trilinos Participation

Mike Heroux, Roscoe Bartlett, and Jonathan Hu

Project Goals/Objectives

Goals: Enable scalable parallel applications for ASCR and DOE-SC.

Objectives: Collaborate with application developers and other TOPS-2 colleagues to develop and integrate reusable components in applications.  Create interoperability between various lab components.

Technical Approach

• Established relationship with DOE-SC apps.
• Leverage unique Trilinos capabilities:
  • Scalable unstructured preconditioners.
  • Block Krylov linear & eigen solvers.
  • Optimization solvers.
  • OO design, SE processes, and more.
• Enhance interoperability between Trilinos, PETSc:  Current users of either framework should have easy access to capabilities of the other.

Importance to ASCR, DOE-SC, SNL

• Ensure related efforts are complementary: PETSc, Hypre, SuperLU, Trilinos
  similar but complementary.
• Enhance toolset available to DOE-SC apps: Make Trilinos capabilities available.
• Expand range of application using Trilinos.

Accomplishments/Highlights

• Participation in:
  • ACTS Toolkit workshop.
  • E3 Town Hall meetings
  • CScADS workshop.
  • SciDAC conference.
• Identified potential apps collaborators.
• Plans in place for interoperability work.
• Prepared to move quickly once funding starts in FY08.

(Return to SciDAC program list)