From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: secretary@lxny.org Newsgroups: gmane.emacs.help Subject: NYC LOCAL: Tuesday 13 February 2007 Lisp NYC: Pinku Surana on Meta-Compilation of Language Abstractions Date: 11 Feb 2007 21:46:50 -0500 Organization: LXNY New York's Free Software Organization Message-ID: NNTP-Posting-Host: lo.gmane.org X-Trace: sea.gmane.org 1171251644 18949 80.91.229.12 (12 Feb 2007 03:40:44 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Mon, 12 Feb 2007 03:40:44 +0000 (UTC) Keywords: available, hackable, freely redistributable source; GPL, BSDL, ArtisticL, XSL To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Mon Feb 12 04:40:35 2007 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1HGS3N-0005HM-BK for geh-help-gnu-emacs@m.gmane.org; Mon, 12 Feb 2007 04:40:33 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1HGS3M-0002cP-UC for geh-help-gnu-emacs@m.gmane.org; Sun, 11 Feb 2007 22:40:32 -0500 Original-Path: shelby.stanford.edu!headwall.stanford.edu!newshub.sdsu.edu!nx01.iad01.newshosting.com!newshosting.com!198.186.194.250.MISMATCH!transit3.readnews.com!news-out.readnews.com!panix!panix3.panix.com!not-for-mail Original-Newsgroups: alt.religion.emacs,comp.lang.lisp,comp.lang.scheme,gnu.emacs.help Original-Followup-To: comp.lang.lisp Original-Lines: 90 Original-NNTP-Posting-Host: panix3.panix.com Original-X-Trace: reader2.panix.com 1171248410 24607 166.84.1.3 (12 Feb 2007 02:46:50 GMT) Original-X-Complaints-To: abuse@panix.com Original-NNTP-Posting-Date: Mon, 12 Feb 2007 02:46:50 +0000 (UTC) Original-Xref: shelby.stanford.edu alt.religion.emacs:8932 comp.lang.lisp:215162 comp.lang.scheme:71294 gnu.emacs.help:145510 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:41114 Archived-At:
From: Heow Eide-Goodman To: LispNYC 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. _______________________________________________ Lisp mailing list Lisp@lispnyc.org http://www.lispnyc.org:8080/mailman/listinfo/lisp
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