From: ·········@lxny.org
Subject: NYC LOCAL: Tuesday 13 February 2007 Lisp NYC: Pinku Surana on Meta-Compilation of Language Abstractions
Date: 
Message-ID: <eqokeq$75q$1@panix3.panix.com>
<blockquote
  what="official Lisp NYC announcement">

 From: Heow Eide-Goodman <·····@alphageeksinc.com>
 To: LispNYC <····@lispnyc.org>
 Subject: [Lisp] Lisp Meeting, February 13th 7:00 at Trinity

 Please join us for our next meeting on Tuesday, February 13th from 
 7:00 to 9:00 at Trinity Lutheran Church.


 Pinku Surana presents his dissertation "Meta-Compilation of Language
 Abstractions" where he discusses the benefits of user-written compiler
 extensions.  This leads to simple APIs, optimizations, and the clean
 embedding of domain-specific languages:

     High-level programming languages are currently transformed
     into efficient low-level code using optimizations that are
     encoded directly into the compiler. Libraries, which are
     semantically rich user-level abstractions, are largely
     ignored by the compiler. Consequently, library writers often
     provide a complex, low-level interface to which programmers
     "manually compile" their high-level ideas. If library
     writers provide a high-level interface, it generally comes
     at the cost of performance. Ideally, library writers should
     provide a high-level interface and a means to compile it
     efficiently.
     
     This dissertation demonstrates that a compiler can be
     dynamically extended to support user-level abstractions. The
     Sausage meta-compilation system is an extensible
     source-to-source compiler for a subset of the Scheme
     programming language. Since the source language lacks nearly
     all the abstractions found in popular languages, new
     abstractions are implemented by a library and a compiler
     extension. In fact, Sausage implements all its
     general-purpose optimizations for functional languages as
     compiler extensions. A meta-compiler, therefore, is merely a
     shell that coordinates the execution of many external
     extensions to compile a single module. Sausage demonstrates
     that a compiler designed to be extended can evolve and adapt
     to new domains without a loss of efficiency.

 Dr. Surana received his Doctorate in Computer Science from Northwestern
 University.  He has spent several years working at Motorola's Software
 Research Center and has completed internships at Microsoft Research.
 His thesis is available here:

   * ftp://lispnyc.org/meeting-assets/2007-01-14_surana/SuranaThesis.pdf




 Directions to Trinity: 

   Trinity Lutheran 
   602 E. 9th St. & Ave B., on Thomkins Square Park 
   http://trinitylowereastside.org/

   From N,R,Q,W (8th Street NYU Stop) and the 4,5 (Astor Street Stop): 
     Walk East 4 blocks on St. Marks, cross Thomkins Square Park. 

   From F&V (2nd Ave Stop): 
     Walk E one or two blocks, turn north for 8 short blocks 

   From L (1st Ave Stop): 
     Walk E one block, turn sounth for 5 short blocks 

   The M9 bus line drops you off at the doorstep and the M15 is near get 
   off on St. Marks & 1st) 

   To get there by car, take the FDR (East River Drive) to Houston then 
   go NW till you're at 9th & B.  Week-night parking isn't bad at all, 
   but if you're paranoid about your Caddy or in a hurry, there is a 
   parking garage on 9th between 1st and 3rd Ave. 

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</blockquote>


Distributed poC TINC:

Jay Sulzberger <·········@lxny.org>
Corresponding Secretary LXNY
LXNY is New York's Free Computing Organization.
http://www.lxny.org