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Parallel Sessions: Compilers

Parallel Sessions: Compilers. Moderator: Quinlan Panelists:   Milind Kulkarni (Purdue), David Padua (UIUC), P. Sadayappan (Ohio State), Armando Solar- Lezama (MIT), Olivier Tardieu (IBM), Nicolas Vasilache (Reservoir). Panel Introductions. Miland :

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Parallel Sessions: Compilers

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  1. Parallel Sessions: Compilers Moderator: Quinlan Panelists:  MilindKulkarni (Purdue), David Padua (UIUC), P. Sadayappan (Ohio State), Armando Solar-Lezama (MIT), Olivier Tardieu (IBM), Nicolas Vasilache (Reservoir)

  2. Panel Introductions Miland: • memory hierarchy / locality : highly demanded, even with Polyhedral David: • how to evaluate quality :  compilers react differently to different codes • understand more about optimization problems : how to apply them. • predict the ultimate performance gain Saday: • landscape : architecture, data movement, up-bound analysis , irregular • apps, analyze apps • publication metrics:  new ideas/prototypes vs.  compiler work with • real impact on apps.  Saman: need long term evaluation . Incentives to • attract researchers.  JMC:finish compilers to deal with millions lines • of codes. Armando • Compiler fire and forget thing, all or nothing: too conservative → • force manual code transformation.   solution: give control, give • feedback, support to users.   Interactive compiler/refinement process

  3. Panel Introductions Saman: reverse/rollback the process to check , need good UI people. • funding for UI/visualization Olivier • X10 language: ready to support CUDA using the place concept, future • work for NUMA Nicolas • confirm previous issues: issues, interaction with users. • new architecture challenges: parameterized code generation • Algorithms: correct representation for loop ,  communication, data • structure synthesis, how to put them together, apply combined • transformation.

  4. Panel Questions Panel questions • * one rewrite/language: • high level specification like using Matlab • multiple, iterative, localized rewrites. • high level description for app features: locality, etc. • DSL , new general constructs like array loops, goto • * new/old compiler techniques: • array region/array section analysis →  mulitithreaded, heterogeneous envionment. • Analysis : high level  gap  SSA • Interactive/feedback

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