Project Overview

1
Project Overview
Kathy Yelick http//titanium.cs.berkeley.edu
U.C. Berkeley September 9, 2004
2
Highlights Language and Compiler

• Language
• Templates with Inheritance
• Support for Java 1.4 is essentially done
• Considering Addition of UPC-style collectives
• Evaluating need for cluster-of-SMP support
  through benchmarks
• Compiler work
• Major compiler reorganization to support language
• Improved compile-time through algorithmic
  improvements
• Improved support for irregular applications
• Many bug fixes and optimizations

3
Highlights Runtime and Tools

• Runtime Support
• GASNet Firehose for pinning-based networks
• Collectives Automatic tuning
• Improved array use through new Domain
  implementation
• New GASNet platforms SCI, Infiniband, (Shmem)
• Tools
• Harmonia support for Titanium extensions to Java
• Existing support for hardware counters (flop
  counts, etc.)
• New GASNet Trace for communication
• Goal is to develop higher level tools to analyze
  this data

4
Highlights Applications

• Application development
• Heart awaiting new structure for major run
  (NPACI)
• Adaptive Mesh Refinement Ocean Modeling (DOE)
• Performance studies
• Above applications plus NAS PB
• Focused on single processor and SMP performance
• Focus on communication performance next year
• Collaborations
• NPACI project is winding down, DOE is ongoing
• Industry interest Myricom, Quadrics, Cray, Intel

5
Schedule

• 9-915 Overview (Kathy)
• 915-940 Language and Compiler changes (Amir)
• 940-1005 AMR Experience (Tong)
• 1005-1020 Domain Optimizations (Imran)
• 1020-1040 Collectives - (Rajesh, Paul Hargrove)
• 1040-1100 break
• 1100-1130 Heart Simulation (Armando, Hormozd)
• 1130-1145 Harmonia - (Andy, Jonathan)
• 1145-100 lunch

6
Schedule (2)

• 100-130 Compiling Irregular Apps - (Jimmy)
• 130-200 Gasnet Overview - (Dan)
• 200-215 A GASNet Performance Tool (Wei)
• 215-230 Break
• 230-300 NAS Parallel Benchmarks (Kaushik)
• End of Titanium Review
• 300-400 UPC-related topics
• UPC and Etnus/Totalview
• Intrepid Support