1. Overall Discussion on Last Day
   1. First Panel: Bob Lucas Chair
2. Written Suggestions of Future Activities
   1. *CFDRC/John Rice:
      1. - Geometry
   2. *Minnesota:
      1. -Preconditioners,
      2. - expert systems,
      3. -pre and post processing standards
      4. -MDO PSE
   3. *Argonne,MSU:
      1. -software engineering standards (object-oriented)
   4. *Purdue:
      1. -Virtual Environments,
      2. -Multidisciplinary and domain specific PSE's,
      3. -Browsers/Agents to find useful material
3. Bob Lucas Again
   1. *Design $10M/year program over next 6 months
   2. *In same science/technology area as now
   3. *Remember speakers at Arpa PI meeting from industry said software integration is key
   4. *Package proposals as DoD area
   5. *Metacomputing Programming Tools
      1. -such as compilers and algorithms for World Wide Virtual Machine
      2. -components and large complex systems
      3. -legacy systems
4. Boisvert's Ideas --I
   1. *Emerging Trends
      1. -Computing is getting better
      2. -Systems are getting more complex and flexible and this is a PSE
      3. -global networks are increasing vision of what computer is
   2. *High Fidelity Multi-Component Distributed Simulation
   3. *Software development environment is bottleneck
5. Boisvert's Ideas --II
   1. *High cost of developing a PSE
      1. -GUI
      2. -Expert Systems
      3. -Ad Hoc Integration and distribution of components
      4. -they are heterogeneous
   2. *Need dynamic interoperable problem solvers on the network
   3. *Lucas suggests eigensolvers on the network
   4. *Components of Program
      1. -distribution object management
      2. -metadata to discover services
      3. -coarse grain software integration
      4. -need prototypes, PSE middleware
6. Discussion -- I
   1. *Lucas says no two sparse solvers have the same interface and no two users use the same package
      1. -Boisvert says object-oriented techniques solve
      2. -But Lucas says this is a mature field; in real world can't afford performance loss of such wrappers
      3. -Lucas notes real application people are cleverer than computer scientists think! They often use excellent innovative algorithms
      *Sameh emphasizes expert systems to help choice of method
7. Discussion -- II
   1. *Heath says grid generation and human time more important than PDE solution time
      1. -Lucas counters that PDE solver purchase is done in "isolation" as a separate competition
   2. *Need to trap and understand error messages from say NASTRAN and detect that say one needs to give it more memory
   3. *Barry Smith says Web Technology is just TCP/IP!
   4. *Lucas suggests partnering with either aerospace industry or government laboratory.
      1. -But Lucas's Arpa's interest is mainly electronic not mechanical application
8. Discussion -- III
   1. *I added following points
      1. -In multidisciplinary PSE's need to do more than just CFD and structures -- ASOP needs 10,000 programs
      2. -Shared memory and distributed memory metacomputer two architecture model
      3. -Coarse grain and Fine grain software/problem models
      4. -Exploit software engineering opportunities of the web
9. Discussion -- IV
   1. *Lucas can't persuade its management to support MOSIS
      1. -How can he persuade them to support software systems which are less clearly generally valuable