Strategic Goals:To align the many efforts at Sandia involved in developing software for the modeling and simulation of physical systems (mostly PDEs):

1. To enable the Rapid development of new Production codes 2. To embed the codes with Transformational design, analysis,

and decision-support capabilities3. To benefit from Synergy & reduce Redundancy

Agile Components for the Rapid Development of Production Applications Andy Salinger, CSRI,

Sandia National Laboratories

Consensus Vision: Our goals will best be met by delivering:• A full range of independent yet interoperable software

componentsCapabilitiesInterfaces

• Software quality tools and procedures • Prototype applications that demonstrate use cases, vertical

integration, and verification, and provide pull

SAND2008-7503P

Element Level FillMaterial Models

Sensitivities

Field ManagerDiscretization Library

Remeshing

UQ Solver

Nonlinear SolverTime Integration

Optimization

Objective Function

Local Fill

Mesh Database

Mesh Tools I/O Management

Input File ParserUtilitiesUQ (non-invasive)

Parameter Studies Solution Control

Mesh I/O

Optimization

Geometry Database

Discretizations

Derivative Tools

Adjoints

UQ / PCEPropagation Constraints

Error Estimates

Continuation

Constrained Solves

Sensitivity AnalysisStability Analysis

V&V, CalibrationParameter List

Feature ExtractionEmbedded Verification

VisualizationPostProcessing

Data Reduction

Adaptivity

Model Reduction

Memory Management

System Models

MultiPhysics Coupling

OUU, ReliabilityComputational Steering

Communicators

MultiCoreParallelization Tools

PartitioningLoad Balancing

Analysis Tools (black-box)

Physics Fill

Composite Physics

Data Structures

Direct Solvers

Linear Algebra

Architecture-Dependent Kernels

Preconditioners

Iterative Solvers

Eigen Solver

System UQ

Analysis Tools (embedded)

Matrix Partitioning

Inline Meshing

MMS Source Terms

Grid TransfersMesh Quality

Mesh Database

Solution Database

Runtime Compiler

Derivatives

Regression Testing

Bug Tracking

Version Control

Software Quality

Porting

Performance TestingCode Coverage

Mailing Lists

Release Process

Unit Testing

Web Pages

Build SystemBackups

Agile Components

Neighbor Search / SortData Structures

Particle Code Tools

Input File

Mesh Tools

UtilitiesPostProcessing

Analysis Tools (black-box) Composite Physics

Linear Algebra

Analysis Tools (embedded)

Mesh Database

Phalanx “Fill” Manager

Discretizations

Derivative Tools

Physics Fill

Some Collected Interfaces

ITAPS Interfaces

Stratimikos ModelEvaluator

FEIEpetra

XML

template <Scalar>

Mesh File

Mesh I/O Interface

ResponseOnly M.E.

Software Quality

cmakeSVNmailman

TriKota

Response Only Model Evaluator: an “Application” or “Problem” Abstraction

A Model Evaluator registers what Input and Output it can handle.

I can make use of: I can compute:

Response Only Model Evaluator:

= Dakota

Analysis Tools (embedded)

ResponseOnly M.E.

TriKota

DirectApplicInterface

“TriKota” is an adapter between Dakota’s “DirectApplicInterface”and Trilinos’ “ResponseOnlyModelEvaluator”

for (int i=0; i<numVars; i++) (*modelEval_p)[i]=xC[i];

TriKota::Driver dakota;

RCP<EpetraExt::ModelEvaluator> App = rcp(new MyResponseOnlyME(dakota.getAnalysisComm()) );

RCP<TriKota::DirectApplicInterface> trikota_interface = rcp(new TriKota::DirectApplicInterface

(dakota.getProblemDescDB(), App), false);

dakota.run(trikota_interface);

Main_Dakota.cpp

Joint work with Bartlett, Adams, Eldred, Gay

Analysis Tools (black-box)

TriKota contains sophisticated coding such as...

Post Processing

Mesh Database

ITAPS Interfaces

VTK visualization software hooked up togeneric ITAPS Mesh Database Interface

Joint work with Nathan Fabian (1426)with help from Vitus Leung & Karen Devine

vtkITAPS

A frame is dumped every time step from a RythmosObserver object.

Visualization

Linear Solvers

Adaptivity

Sacado AD

ModelEvaluator

Inline Meshing

Mesh I/O

MeshField Interface

Input File Parser

FEI/DOF

Zoltan

Intrepid

Stokhos UQ

Dakota OPT

Dakota UQ

Moocho

Rythmos

Adjoint in Time LOCA

Phalanx Field Manager

Error Estimates

Transient Sensitivities

4D

Mesquite

Improved Environment

Test Harness

MMS Tests

SVN

Solvers/Analysis Mesh/Element Software/Verification

OUUUncertainty Inversion

Encore

ROM

DG, FV

In-core Geometry

Code Coverage

Order Verification

in situ Visualization

MultiPoint Opt

2nd Mesh Database

MultiCore

MultiPhysics

Performance Testing

DemoApp Timeline

System Solver

Shape Optimization

Solution Verification

Build System1D Mesh/Element

Physics

1D Heat Eq

1D Transient

2D Heat Eq

1D Acoustics

2D Acoustics

Nightly IntegrationTesting

Unit Tests

2D Elastics

3D PDEs

Multi-Physics App

Hybrid-Discretization

Sensitivity Analysis

GUI Input File Editor

DONE

PLANNED

trivial 2D Mesh/Element

Mesh DataB.

STARTED WITH

NOX

3/08: Started with Working 1D FEM Code (Sacado::FEApp) [Phipps] and aTrilinos-like Application Environment (Tramonto) [Willenbring, Phenow, Heroux]