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Applications of .NET to Scientific Computing James Kovacs Lead Senior Systems Analyst Quadrus Development Inc. March 22, 2005 Agenda Introductions Benefits of .NET .NET Framework Overview Windows Forms ASP.NET Web Services About Quadrus Formed in 1993

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applications of net to scientific computing

Applications of .NET to Scientific Computing

James Kovacs

Lead Senior Systems Analyst

Quadrus Development Inc.

March 22, 2005

agenda
Agenda
  • Introductions
  • Benefits of .NET
  • .NET Framework Overview
  • Windows Forms
  • ASP.NET
  • Web Services
about quadrus
About Quadrus
  • Formed in 1993
    • Close-knit group of highly skilled software professionals
  • Solution Areas
    • Software Development – complete end-to end or co-development services for custom applications and EAI
    • Project Management – methodology adoption, project oversight
    • Training & Mentoring – public and private course offerings, PM and technical mentoring
    • Business Intelligence – data warehouses, analytics, reporting
about james kovacs
About James Kovacs
  • Lead Senior Systems Analyst (Quadrus)
  • Masters in Physical Chemistry (Harvard)
  • Catalysis of hydrocarbons on metal surfaces
    • Required custom data acquisition and analysis software
  • http://www.jameskovacs.com
  • JamesK@Quadrus.com
benefits of net
Benefits of .NET
  • Ease of use
  • Choice of development language
  • Greatly improved stability and security
  • Common development framework
ease of use
Ease of Use
  • Object-oriented model
    • Everything is an object
  • Namespace and Framework structure
    • Easier to comprehend and use
    • Naming scheme of namespaces reflects the underlying functionality
  • Tremendous amount of available functionality
    • .NET Framework contains thousands of classes and methods
    • Wide variety of 3rd-party components available
language choice
Language Choice
  • Everyone has their favourite language
  • .NET supports a wide variety of languages to encourage adoption and interoperation
  • Microsoft developed/supported
    • C#
    • VB.NET
    • C++ with Managed Extensions
    • J#
    • JScript.NET
  • 3rd-party developed/supported
    • Cobol
    • PHP
    • Perl
    • Many others
stability and security
Stability and Security
  • Garbage collector manages memory
    • No more memory leaks
  • Strongly versioned assemblies
    • Eliminates DLL Hell
  • Verifiably type-safe code
    • Eliminates buffer overruns, indexing out of array bounds, bad pointer arithmetic, use of uninitialized data, unsafe casts
common development framework
Common Development Framework
  • Windows application
    • Windows Forms
  • Web application
    • ASP.NET
  • Server application
    • Web Services
    • Windows Services
  • Mobile devices
    • ASP.NET
    • Compact Framework
net framework overview

Visual Studio.NET

VB

C++

C#

JScript

J#

Common Language Specification

ASP.NET

Web Forms Web Services

Mobile Internet Toolkit

Windows

Forms

ADO.NET and XML

Base Class Library

Common Language Runtime

Operating System

.NET Framework Overview
common language runtime

Thread Support

COM Marshaler

Type Checker

Exception Manager

Security Engine

Debug Engine

JIT

Compiler

Code

Manager

Garbage

Collector

Common Language Runtime

Base Class Library Support

Class Loader

common language runtime clr
Common Language Runtime (CLR)
  • Common Type System (CTS)
    • Defines a set of primitive types
    • Enables cross-language integration and type safety
  • Common Language Specification (CLS)
    • Defines a set of programmatically-verifiable rules
      • Controls interoperation of types in different programming languages
    • CLS-Compliant Code
garbage collector
Garbage Collector
  • Compacting, generational GC
  • Frees developer from managing memory
  • Eliminates memory leaks
jit compiler

Assembly

Language Compiler

Native

Code

JIT Compiler

Execution

JIT Compiler

Compilation

Metadata

Source Code

Code (MSIL)

At installation or the first time each method is called

net performance
.NET Performance
  • .NET comparable to native C/C++ for:
    • Integer and floating point math
    • Access to locals, parameters, and instance fields
    • Flow of control
    • Method calls
  • Areas for improvement:
    • 64-bit arithmetic
    • Complex inlining cases
    • Analysis time cap
net performance advice
.NET Performance Advice
  • Correct and slow is better than fast and wrong
  • Know the cost of the features you use
    • Easy to use expensive operations/features
  • Always measure before (and after) tuning
  • Don’t be afraid to throw away “improvements”
windows forms
Windows Forms
  • Rapid application development (RAD)
  • Rich interface and user controls
  • ActiveX support
  • Accessibility
  • Licensing
  • Printing
  • Deployment scenarios
    • MSI
    • No touch deployment
asp net
ASP.NET
  • Supports all .NET languages
  • Browser-compliant controls
    • JavaScript, DHTML
  • Rich set of server controls
    • DataGrid
    • Validators
  • Session management
    • In-proc, state server, or SQL Server
  • Compilation
  • Caching
web services using asmx
Web Services using ASMX
  • ASMX
    • [WebMethod]
    • [WebService]
  • SOAP
  • Universal Description, Discovery and Integration (UDDI)
  • Web Services Description Language (WSDL)
  • XML serialization
web services using wse v2 0
Web Services using WSE v2.0
  • Web Services Enhancements
  • Supports advanced XML Web service specifications
    • WS-Addressing
    • WS-Policy
    • WS-Security
  • Supports various message exchange patterns
    • Request/response, publish/subscribe, one way, etc.
  • Microsoft.Web.Services2.dll
web services architecture
Web Services Architecture

Applications &

Application Structure

Connected Applications

Business Processes

Management

Security

WS-Security

WS-Trust

WS-Federation

Reliability

WS-RM

Transactions

WS-Coordination

WS-Transactions

Metadata

WSDL, WS-Policy

Foundation

Messaging (SOAP, WS-Addressing)

XML

Transport

UDP TCP HTTP

microsoft corporation
BizTalk Server 2004

CLR Hosts

Office 2003

Visual Studio .NET

Content Management Server 2002

MSN

Music

Search (Beta)

Operations Manager 2005

Project Server 2003

SharePoint Portal Server 2003

SQL Server 2000

Notification Services

Reporting Services

SQL Server 2005

Windows Server 2003

Microsoft Corporation
questions
Questions

http://www.jameskovacs.com

JamesK@Quadrus.com