Gambit-list Juin 2019

gambit-list@iro.umontreal.ca

6 participants
11 discussions

Gambit versus Python+GMP: Timing for Chudnovskys' algorithm for pi
by Bradley Lucier 07 Avr '22

07 Avr '22

Bakul Shah wrote a particularly elegant Scheme program for Chudnovskys' algorithm for pi based on the Common Lisp program here: https://bitbucket.org/tarballs_are_good/numericl/src/5fe8fe7089f48ab1c8a388… Nick Craig-Wood wrote a Python program using the GMP multiprecision library that appears to use exactly the same algorithm here: http://www.craig-wood.com/nick/articles/pi-chudnovsky/ I modified both programs a bit and include them here. They time the calculation of $10^n$ digits of pi for $n=1,2,3,4,5,6,7$. The results are heine:~/programs/gambiteer/gambit> !py python pi_chudnovsky_bs_gmpy.py 31415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679 ('chudnovsky_gmpy_mpz_bs: digits', 10, 'time', 1.0967254638671875e-05) ('chudnovsky_gmpy_mpz_bs: digits', 100, 'time', 3.0040740966796875e-05) Last 5 digits 70679 OK ('chudnovsky_gmpy_mpz_bs: digits', 1000, 'time', 0.00025582313537597656) Last 5 digits 01989 OK ('chudnovsky_gmpy_mpz_bs: digits', 10000, 'time', 0.00386810302734375) Last 5 digits 75678 OK ('chudnovsky_gmpy_mpz_bs: digits', 100000, 'time', 0.0834801197052002) Last 5 digits 24646 OK ('chudnovsky_gmpy_mpz_bs: digits', 1000000, 'time', 1.655979871749878) Last 5 digits 58151 OK ('chudnovsky_gmpy_mpz_bs: digits', 10000000, 'time', 30.67442488670349) Last 5 digits 55897 OK heine:~/programs/gambiteer/gambit> gsi chud1.scm Chudnovsky's algorithm using binary splitting in Gambit Scheme: digits 10, CPU time: 0.. Last 5 digits 26535. Chudnovsky's algorithm using binary splitting in Gambit Scheme: digits 100, CPU time: 0.. Last 5 digits 70679. Chudnovsky's algorithm using binary splitting in Gambit Scheme: digits 1000, CPU time: .004. Last 5 digits 1989. Chudnovsky's algorithm using binary splitting in Gambit Scheme: digits 10000, CPU time: .028. Last 5 digits 75678. Chudnovsky's algorithm using binary splitting in Gambit Scheme: digits 100000, CPU time: .472. Last 5 digits 24646. Chudnovsky's algorithm using binary splitting in Gambit Scheme: digits 1000000, CPU time: 6.448. Last 5 digits 58151. Chudnovsky's algorithm using binary splitting in Gambit Scheme: digits 10000000, CPU time: 98.612. Last 5 digits 55897. So it appears that for this algorithm applied to large integers, GMP's bignum routines are about 3-4 times as fast as Gambit's bignum routines. Not so bad. For smaller bignums, GMP has a bigger advantage. The C program gmp-chudnovsky.c includes certain optimizations to this basic algorithm: http://gmplib.org/pi-with-gmp.html ftp://ftp.gmplib.org/pub/misc/gmp-chudnovsky.c On my machine, compiled with gcc -O3 -march=native -o gmp-chudnovsky gmp-chudnovsky.c -lgmp -lm the CPU times for 1,000,000 and 10,000,000 digits are 1.064 and 18.200 seconds, respectively. This is with a somewhat older machine model name : Intel(R) Core(TM)2 Quad CPU Q8200 @ 2.33GHz running Ubuntu 13.04 with heine:~/programs/gambiteer/gambit> gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.7/lto-wrapper Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.7.3-1ubuntu1' --with-bugurl=file:///usr/share/doc/gcc-4.7/README.Bugs --enable-languages=c,c++,go,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.7 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.7 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin --with-system-zlib --enable-objc-gc --with-cloog --enable-cloog-backend=ppl --disable-cloog-version-check --disable-ppl-version-check --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 4.7.3 (Ubuntu/Linaro 4.7.3-1ubuntu1) heine:~/programs/gambiteer/gambit> gsi -v v4.6.9 20130607151908 x86_64-unknown-linux-gnu "./configure '--enable-single-host' '--enable-multiple-versions' '--enable-shared'" and the Ubuntu-provided GMP 5.0.5. (I'm sure the GMP folks have a better way to build GMP on my machine than the "generic" 64-bit version provided by Ubuntu.) Brad

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Gambit at 30
by Marc Feeley 19 Jul '19

19 Jul '19

This year is the 30th anniversary of Gambit. To mark the occasion I am planning to organize a 1-2 day meeting this fall in Montreal if enough people can attend. The content remains to be determined but I can imagine some more-or-less formal presentations by me and attendants, brainstorming sessions and maybe some hacking on Gambit. To maximize attendance the meeting will be on a weekend, probably in September or October. So please let the list know if you are interested in attending, and if you have preferences for the date. Also please indicate if you are interested in giving a presentation (15-30 minutes or more if you have lots of material) or organize some other activity. Marc

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Compiling to Javascript
by hashavtech＠outlook.com 13 Jul '19

13 Jul '19

There are some messages in 2013 and 2016 that gave me a hint of what needs to be done in order to compile to js. But it seems that some things have changed (for example the gsc with -target js does not seem to produce a .js file, it gave me an .o1 file that contained Javascript). I was able to compile a working example once but the .js file contains the whole _gambit.js library and is 22 MB in size. That isn't really what I was hoping for. I've seen it mentioned that there was some work done on only including the necessary parts of the library, but I was unable to figure out how to do it (I'm new to Gambit although not to Lisp). I'd be glad for some help getting from a Scheme file to a working and reasonably-sized file. My goal is to include scheme-sourced parts in a web app, so there probably will be some interoperability issues, but at the moment I'm stuck at the compilation stage.

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Call for Participation: ICFP 2019
by Sam Tobin-Hochstadt 24 Jui '19

24 Jui '19

===================================================================== Call for Participation ICFP 2019 24th ACM SIGPLAN International Conference on Functional Programming and affiliated events August 18 - August 23, 2019 Berlin, Germany http://icfp19.sigplan.org/ Early Registration until July 18! ===================================================================== ICFP provides a forum for researchers and developers to hear about the latest work on the design, implementations, principles, and uses of functional programming. The conference covers the entire spectrum of work, from practice to theory, including its peripheries. This year, ICFP is co-located with BOBKonf! * Overview and affiliated events: http://icfp19.sigplan.org/home * Program: http://icfp19.sigplan.org/program/program-icfp-2019 * Accepted papers: http://icfp19.sigplan.org/track/icfp-2019-papers * Registration is available via: https://regmaster4.com/2019conf/ICFP19/register.php Early registration ends 18 July, 2019. * Programming contest: https://icfpcontest2019.github.io/ * Student Research Competition: https://icfp19.sigplan.org/track/icfp-2019-Student-Research-Competition * Follow us on Twitter for the latest news: http://twitter.com/icfp_conference In addition to BOBKonf (8/21), there are several events co-located with ICFP: * Erlang Workshop (8/18) * Functional Art, Music, Modeling and Design (8/23) * Functional High-Performance and Numerical Computing (8/18) * Haskell Implementors' Workshop (8/23) * Haskell Symposium (8/22-8/23) * miniKanren Workshop (8/22) * ML Family Workshop (8/22) * OCaml Workshop (8/23) * Programming Languages Mentoring Workshop (8/18) * Scheme Workshop (8/18) * Type-Driven Development (8/18) ### ICFP Organizers General Chair: Derek Dreyer (MPI-SWS, Germany) Artifact Evaluation Co-Chairs: Simon Marlow (Facebook, UK) Industrial Relations Chair: Alan Jeffrey (Mozilla Research, USA) Programming Contest Organiser: Ilya Sergey (Yale-NUS College, Singapore) Publicity and Web Chair: Sam Tobin-Hochstadt (Indiana University, USA) Student Research Competition Chair: William J. Bowman (University of British Columbia, Canada) Workshops Co-Chair: Christophe Scholliers (Universiteit Gent, Belgium) Jennifer Hackett (University of Nottingham, UK) Conference Manager: Annabel Satin (P.C.K.) ### PACMPL Volume 3, Issue ICFP 2019 Principal Editor: François Pottier (Inria, France) Review Committee: Lennart Beringer (Princeton University, United States) Joachim Breitner (DFINITY Foundation, Germany) Laura M. Castro (University of A Coruña, Spain) Ezgi Çiçek (Facebook London, United Kingdom) Pierre-Evariste Dagand (LIP6/CNRS, France) Christos Dimoulas (Northwestern University, United States) Jacques-Henri Jourdan (CNRS, LRI, Université Paris-Sud, France) Andrew Kennedy (Facebook London, United Kingdom) Daan Leijen (Microsoft Research, United States) Kazutaka Matsuda (Tohoku University, Japan) Bruno C. d. S. Oliveira (University of Hong Kong, China) Klaus Ostermann (University of Tübingen, Germany) Jennifer Paykin (Galois, United States) Frank Pfenning (Carnegie Mellon University, USA) Mike Rainey (Indiana University, USA) Chung-chieh Shan (Indiana University, USA) Sam Staton (University of Oxford, UK) Pierre-Yves Strub (Ecole Polytechnique, France) German Vidal (Universitat Politecnica de Valencia, Spain) External Review Committee: Michael D. Adams (University of Utah, USA) Robert Atkey (University of Strathclyde, IK) Sheng Chen (University of Louisiana at Lafayette, USA) James Cheney (University of Edinburgh, UK) Adam Chlipala (Massachusetts Institute of Technology, USA) Evelyne Contejean (LRI, Université Paris-Sud, France) Germán Andrés Delbianco (IRIF, Université Paris Diderot, France) Dominique Devriese (Vrije Universiteit Brussel, Belgium) Richard A. Eisenberg (Bryn Mawr College, USA) Conal Elliott (Target, USA) Sebastian Erdweg (Delft University of Technology, Netherlands) Michael Greenberg (Pomona College, USA) Adrien Guatto (IRIF, Université Paris Diderot, France) Jennifer Hackett (University of Nottingham, UK) Troels Henriksen (University of Copenhagen, Denmark) Chung-Kil Hur (Seoul National University, Republic of Korea) Roberto Ierusalimschy (PUC-Rio, Brazil) Ranjit Jhala (University of California, San Diego, USA) Ralf Jung (MPI-SWS, Germany) Ohad Kammar (University of Oxford, UK) Oleg Kiselyov (Tohoku University, Japan) Hsiang-Shang ‘Josh’ Ko (National Institute of Informatics, Japan) Ondřej Lhoták (University of Waterloo, Canada) Dan Licata (Wesleyan University, USA) Geoffrey Mainland (Drexel University, USA) Simon Marlow (Facebook, UK) Akimasa Morihata (University of Tokyo, Japan) Shin-Cheng Mu (Academia Sinica, Taiwan) Guillaume Munch-Maccagnoni (Inria, France) Kim Nguyễn (University of Paris-Sud, France) Ulf Norell (Gothenburg University, Sweden) Atsushi Ohori (Tohoku University, Japan) Rex Page (University of Oklahoma, USA) Zoe Paraskevopoulou (Princeton University, USA) Nadia Polikarpova (University of California, San Diego, USA) Jonathan Protzenko (Microsoft Research, USA) Tiark Rompf (Purdue University, USA) Andreas Rossberg (Dfinity, Germany) KC Sivaramakrishnan (University of Cambridge, UI) Nicholas Smallbone (Chalmers University of Technology, Sweden) Matthieu Sozeau (Inria, France) Sandro Stucki (Chalmers | University of Gothenburg, Sweden) Don Syme (Microsoft, UK) Zachary Tatlock (University of Washington, USA) Sam Tobin-Hochstadt (Indiana University, USA) Takeshi Tsukada (University of Tokyo, Japan) Tarmo Uustalu (Reykjavik University, Iceland) Benoit Valiron (LRI, CentraleSupelec, Univ. Paris Saclay, France) Daniel Winograd-Cort (University of Pennsylvania, USA) Nicolas Wu (University of Bristol, UK)

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SLE 2019: Final Call for Papers - Deadline Extension; Athens, Greece; October 21-22
by Andrei Chis 17 Jui '19

17 Jui '19

------------------------------------------------------------------------ Call for Papers: 12th ACM SIGPLAN International Conference on Software Language Engineering (SLE 2019) co-located with SPLASH 2019 Athens, Greece October 21-22, 2019 https://conf.researchr.org/home/sle-2019 http://www.sleconf.org/2019 Follow us on twitter: https://twitter.com/sleconf --------------------------- IMPORTANT DATES --------------------------- Deadlines have been extended by one week from the earlier announcements: * Abstract Submission: June 21, 2019 * Paper Submission: June 28, 2019 * Author Notification: August 9, 2019 ------------------------------------------------------------------------ We are pleased to invite you to submit papers to the 12th ACM SIGPLAN International Conference on Software Language Engineering (SLE 2019), held in conjunction with SPLASH 2019 at Athens, Greece on October 21-22, 2019. --------------------------- Topics of Interest --------------------------- SLE 2019 solicits high-quality contributions in areas ranging from theoretical and conceptual contributions, to tools, techniques, and frameworks in the domain of software language engineering. Topics relevant to SLE cover generic aspects of software languages development rather than aspects of engineering a specific language. In particular, SLE is interested in contributions from the following areas: * Software Language Design and Implementation - Approaches to and methods for language design - Static semantics (e.g., design rules, well-formedness constraints) - Techniques for specifying behavioral / executable semantics - Generative approaches (incl. code synthesis, compilation) - Meta-languages, meta-tools, language workbenches * Software Language Validation - Verification and formal methods for languages - Testing techniques for languages - Simulation techniques for languages * Software Language Integration and Composition - Coordination of heterogeneous languages and tools - Mappings between languages (incl. transformation languages) - Traceability between languages - Deployment of languages to different platforms * Software Language Maintenance - Software language reuse - Language evolution - Language families and variability * Domain-specific approaches for any aspects of SLE (design, implementation, validation, maintenance) * Empirical evaluation and experience reports of language engineering tools - User studies evaluating usability - Performance benchmarks - Industrial applications --------------------------- Types of Submissions --------------------------- SLE 2019 solicits three types of contributions: Research Papers, Tools Papers, and New Ideas/Vision papers. * Research papers These should report a substantial research contribution to SLE or successful application of SLE techniques or both. Full paper submissions must not exceed 12 pages, excluding bibliography. * Tool papers Because of SLE’s interest in tools, we seek papers that present software tools related to the field of SLE. Selection criteria include originality of the tool, its innovative aspects, and relevance to SLE. Any of the SLE topics of interest are appropriate areas for tool demonstrations. Submissions must provide a tool description of 4 pages excluding bibliography, and a demonstration outline including screenshots of up to 6 pages. Tool demonstrations must have the keywords “Tool Demo” or “Tool Demonstration” in the title. The 4-page tool description will, if the demonstration is accepted, be published in the proceedings. The 6-page demonstration outline will be used by the program committee only for evaluating the submission. *New ideas / vision papers New ideas papers should describe new, non-conventional SLE research approaches that depart from standard practice. They are intended to describe well-defined research ideas that are at an early stage of investigation. Vision papers are intended to present new unifying theories about existing SLE research that can lead to the development of new technologies or approaches. New ideas / vision papers must not exceed 4 pages, excluding bibliography. *Workshops Workshops will be organized by SPLASH. Please inform us and contact the SPLASH organizers if you would like to organize a workshop of interest to the SLE audience. Information on how to submit workshops can be found at the SPLASH 2019 Website. --------------------------- Artifact Evaluation --------------------------- SLE will continue to use an evaluation process for assessing the quality of the artifacts on which papers are based to foster the culture of experimental reproducibility. Authors of accepted papers are invited to submit artifacts. For more information, please have a look at the Artifact Evaluation page. --------------------------- Submission Details --------------------------- Paper Format: Submissions must conform to the ACM SIGPLAN Conference Format “acmart”; please make sure that you always use the latest ACM SIGPLAN acmart LaTeX template, and that the document class definition is \documentclass[sigplan,anonymous,review]{acmart}. Do not make any changes to this format! Using the Word template is strongly discouraged. Ensure that your submission is legible when printed on a black and white printer. In particular, please check that colors remain distinct and font sizes in figures and tables are legible. To increase fairness in reviewing, a double-blind review process has become standard across SIGPLAN conferences. For the first time, SLE will follow the double-blind process. Author names and institutions should be omitted from submitted papers, and references to the authors’ own related work should be in the third person. No other changes are necessary, and authors will not be penalized if reviewers are able to infer their identities in implicit ways. All submissions must be in PDF format. Concurrent Submissions: Papers must describe unpublished work that is not currently submitted for publication elsewhere as described by SIGPLAN’s Republication Policy. Submitters should also be aware of ACM’s Policy and Procedures on Plagiarism. Submissions that violate these policies will be desk-rejected. Submission Site: Submissions will be accepted at https://sle19.hotcrp.com/ --------------------------- Reviewing Process --------------------------- All submitted papers will be reviewed by at least three members of the program committee. Research papers and tool papers will be evaluated concerning novelty, correctness, significance, readability, and alignment with the conference call. New ideas / vision papers will be evaluated primarily concerning novelty, significance, readability, and alignment with the conference call. For fairness reasons, all submitted papers must conform to the above instructions. Submissions that violate these instructions may be rejected without review, at the discretion of the PC chairs. --------------------------- Awards --------------------------- * Distinguished paper: Award for most notable paper, as determined by the PC chairs based on the recommendations of the programme committee. * Distinguished reviewer: Award for distinguished reviewer, as determined by the PC chairs. * Distinguished artifact: Award for the artifact most significantly exceeding expectations, as determined by the AEC chairs based on the recommendations of the artifact evaluation committee. --------------------------- Publication --------------------------- All accepted papers will be published in the ACM Digital Library. AUTHORS TAKE NOTE: The official publication date is the date the proceedings are made available in the ACM Digital Library. This date may be up to two weeks prior to the first day of the conference. The official publication date affects the deadline for any patent filings related to published work. --------------------------- Organisation --------------------------- Chairs: * General chair: Oscar Nierstrasz (University of Bern, Switzerland) * Program co-chair: Bruno Oliveira (University of Hong Kong, China) * Program co-chair: Jeff Gray (University of Alabama, USA) * Artefact Evaluation co-chair: Emma Söderberg (Lund University, Sweden) * Artefact Evaluation co-chair: Abel Gomez (Universitat Oberta de Catalunya, Spain) Program Committee: Xuan Bi (Standard Chartered Bank) Erwan Bousse (TU Wien) Loli Burgeuno (Open University of Catalonia) Marsha Chechik (University of Toronto) Matteo Cimini (University of Massachusetts, Lowell) Thomas Degueule (CWI) Juan de Lara (Universidad Autónoma de Madrid) Juergen Dingel (Queen's University) Romina Eramo (University of L'Aquila) Sebastian Gerard (CEA) Paolo Giarusso (TU Delft) Esther Guerra (Universidad Autónoma de Madrid) Pablo Inostroza (CWI) Dimitris Kolovos (University of York) Marjan Mernik (University of Maribor) Alfonso Pierantonio (University of L'Aquila) Jaroslav Porubän (University of Košice) Casper Poulsen (TU Delft) Yann Regis-Gianas (Paris 7/INRIA) Bernhard Rumpe (RWTH Aachen University) Markus Schordan (Lawrence Livermore National Laboratory) Neil Sculthorpe (Nottingham Trent University) Marco Servetto (Victoria University of Wellington) Elizabeth Scott (Royal Holloway) Eugene Syriani (University of Montreal) Ulyana Tikhonova (CWI) Juha-Pekka Tolvanen (MetaCase) Antonio Valecillo (University of Malaga) Mark van den Brand (TU Eindhoven) Vadim Zaytsev (Raincode Labs) Tian Zhang (Nanjing University) --------------------------- Contact --------------------------- For additional information, clarification, or answers to questions, please contact the organizers by email (bruno(a)cs.hku.hk and gray(a)cs.ua.edu)

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Final call for regular papers for IFL 2019 (Implementation and Application of Functional Languages)
by Jurriaan Hage 07 Jui '19

07 Jui '19

Hello, Please, find below the call for papers for IFL 2019. With respect to the previous call, the deadline for submitting regular papers has been changed to June 15th. Please forward these to anyone you think may be interested. Apologies for any duplicates you may receive. best regards, Jurriaan Hage Publicity Chair of IFL --- ================================================================================ IFL 2019 31st Symposium on Implementation and Application of Functional Languages National University of Singapore September 25th-27th, 2019 http://2019.iflconference.org ================================================================================ ### Scope The goal of the IFL symposia is to bring together researchers actively engaged in the implementation and application of functional and function-based programming languages. IFL 2019 will be a venue for researchers to present and discuss new ideas and concepts, work in progress, and publication-ripe results related to the implementation and application of functional languages and function-based programming. Topics of interest to IFL include, but are not limited to: - language concepts - type systems, type checking, type inferencing - compilation techniques - staged compilation - run-time function specialization - run-time code generation - partial evaluation - (abstract) interpretation - metaprogramming - generic programming - automatic program generation - array processing - concurrent/parallel programming - concurrent/parallel program execution - embedded systems - web applications - (embedded) domain specific languages - security - novel memory management techniques - run-time profiling performance measurements - debugging and tracing - virtual/abstract machine architectures - validation, verification of functional programs - tools and programming techniques - (industrial) applications ### Keynote Speaker * Olivier Danvy, Yale-NUS College ### Submissions and peer-review Differently from previous editions of IFL, IFL 2019 solicits two kinds of submissions: * Regular papers (12 pages including references) * Draft papers for presentations ('weak' limit between 8 and 15 pages) Regular papers will undergo a rigorous review by the program committee, and will be evaluated according to their correctness, novelty, originality, relevance, significance, and clarity. A set of regular papers will be conditionally accepted for publication. Authors of conditionally accepted papers will be provided with committee reviews along with a set of mandatory revisions. Regular papers not accepted for publication will be considered as draft papers, at the request of the author. Draft papers will be screened to make sure that they are within the scope of IFL, and will be accepted for presentation or rejected accordingly. Prior to the symposium: Authors of conditionally accepted papers and accepted presentations will submit a pre-proceedings version of their work that will appear in the draft proceedings distributed at the symposium. The draft proceedings does not constitute a formal publication. We require that at least one of the authors present the work at IFL 2019. After the symposium: Authors of conditionally accepted papers will submit a revised versions of their paper for the formal post-proceedings. The program committee will assess whether the mandatory revisions have been adequately addressed by the authors and thereby determines the final accept/reject status of the paper. Our interest is to ultimately accept all conditionally accepted papers. If you are an author of a conditionally accepted paper, please make sure that you address all the concerns of the reviewers. Authors of accepted presentations will be given the opportunity to incorporate the feedback from discussions at the symposium and will be invited to submit a revised full article for the formal post-proceedings. The program committee will evaluate these submissions according to their correctness, novelty, originality, relevance, significance, and clarity, and will thereby determine whether the paper is accepted or rejected. ### Publication The formal proceedings will appear in the International Conference Proceedings Series of the ACM Digital Library. At no time may work submitted to IFL be simultaneously submitted to other venues; submissions must adhere to ACM SIGPLAN's republication policy: http://www.sigplan.org/Resources/Policies/Republication ### Important dates Submission of regular papers: June 15, 2019 Submission of draft papers: July 15, 2019 Regular and draft papers notification: August 1, 2019 Deadline for early registration: August 15, 2019 Submission of pre-proceedings version: September 15, 2019 IFL Symposium: September 25-27, 2019 Submission of papers for post-proceedings: November 30, 2019 Notification of acceptance: January 31, 2020 Camera-ready version: February 29, 2020 ### Submission details All contributions must be written in English. Papers must use the ACM two columns conference format, which can be found at: http://www.acm.org/publications/proceedings-template Authors submit through EasyChair: https://easychair.org/conferences/?conf=ifl2019 ### Peter Landin Prize The Peter Landin Prize is awarded to the best paper presented at the symposium every year. The honored article is selected by the program committee based on the submissions received for the formal review process. The prize carries a cash award equivalent to 150 Euros. ### Organization and Program committee Chairs: Jurrien Stutterheim (Standard Chartered Bank Singapore), Wei Ngan Chin (National University of Singapore) Program Committee: - Olaf Chitil, University of Kent - Clemens Grelck, University of Amsterdam - Daisuke Kimura, Toho University - Pieter Koopman, Radboud University - Tamas Kozsik, Eotvos Lorand University - Roman Leschinskiy, Facebook - Ben Lippmeier, The University of New South Wales - Marco T. Morazan, Seton Hall University - Sven-Bodo Scholz, Heriot-Watt University - Tom Schrijvers, Katholieke Universiteit Leuven - Alejandro Serrano, Utrecht University - Tony Sloane, Macquarie University - Simon Thompson, University of Kent - Marcos Viera, Universidad de la Republica - Wei Ngan Chin, NUS - Jurrien Stutterheim, Standard Chartered Bank ### Venue The 31st IFL is organized by the National University of Singapore. Singapore is located in the heart of South-East Asia, and the city itself is extremely well connected by trains and taxis. See the website for more information on the venue. ### Acknowledgments This call-for-papers is an adaptation and evolution of content from previous instances of IFL. We are grateful to prior organizers for their work, which is reused here. A part of IFL 2019 format and CFP language that describes conditionally accepted papers has been adapted from call-for-papers of OOPSLA conferences.

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GPCE 2019: 2nd Call for Papers - Athens, Greece; October 21-22
by Rodin Aarssen 06 Jui '19

06 Jui '19

CALL FOR PAPERS 18th International Conference on Generative Programming: Concepts & Experiences (GPCE 2019) October 21-22, 2019 Athens, Greece (co-located with SPLASH 2019) https://conf.researchr.org/home/gpce-2019 http://twitter.com/GPCECONF http://www.facebook.com/GPCEConference IMPORTANT DATES * Submission of abstracts: June 14, 2019 * Submission of papers: June 21, 2019 * Paper notification: August 9, 2019 Submission site: https://gpce19.hotcrp.com/ -------------------------------------------------------------------------- SCOPE GPCE is a venue for researchers and practitioners interested in techniques and tools for code generation, language implementation, and metaprogramming. GPCE seeks conceptual, theoretical, empirical, and technical contributions to its topics of interest, which include but are not limited to: * program transformation, staging, macro systems, preprocessors, program synthesis, and code-recommendation systems, * domain-specific languages, language embedding, language design, and language workbenches, * feature-oriented programming, domain engineering, and feature interactions, * applications and properties of code generation, language implementation, and product-line development. Authors are welcome to check with the program co-chairs whether their planned papers are in scope. PAPER SELECTION The GPCE program committee will evaluate each submission according to the following selection criteria: * Novelty. Papers must present new ideas or evidence and place them appropriately within the context established by previous research in the field. * Significance. The results in the paper must have the potential to add to the state of the art or practice in significant ways. * Evidence. The paper must present evidence supporting its claims. Examples of evidence include formalizations and proofs, implemented systems, experimental results, statistical analyses, and case studies. * Clarity. The paper must present its contributions and results clearly. PAPER CATEGORIES GPCE solicits three kinds of submissions. * Full Papers reporting original and unpublished results of research that contribute to scientific knowledge in any GPCE topic listed above. Full paper submissions must not exceed 12 pages excluding bibliography. * Short Papers presenting unconventional ideas or visions about any GPCE topic listed above. Short papers do not always require complete results as in the case of a full paper. In this way, authors can introduce new ideas to the community and get early feedback. Please note that short papers are not intended to be position statements. Short papers are included in the proceedings and will be presented at the conference. Short paper submissions must not exceed 6 pages excluding bibliography. * Tool Demonstrations presenting tools for any GPCE topic listed above. Tools must be available for use and must not be purely commercial. Submissions must provide a tool description not exceeding 6 pages excluding bibliography and a separate demonstration outline including screenshots also not exceeding 6 pages. Tool demonstrations must have the keywords "Tool Demo" or "Tool Demonstration" in their title. If the submission is accepted, the tool description will be published in the proceedings. The demonstration outline will only be used by the program committee for evaluating the submission. PAPER SUBMISSION All submissions must use the ACM SIGPLAN Conference Format "acmart", using the "sigplan" sub-format, and 10 point font. Additional details and links to templates and the LaTeX class file can be found on the conference web site: https://conf.researchr.org/home/gpce-2019. To increase fairness in reviewing, a double-blind review process has become standard across SIGPLAN conferences. GPCE will follow a very lightweight model, where author identities are revealed to reviewers after submitting their initial reviews. Hence, the purpose is not to conceal author identities at all cost, but merely to provide reviewers with an unbiased first look at a submission. Author names and institutions should be omitted from submitted papers, and references to the authors' own related work should be in the third person. No other changes are necessary, and authors will not be penalized if reviewers are able to infer their identities in implicit ways. Papers must be submitted using HotCRP: https://gpce19.hotcrp.com/ For additional information, clarification, or answers to questions please contact the program co-chairs. ORGANIZATION Chairs * General chair: Ina Schaefer (TU Braunschweig) * Program co-chair: Christoph Reichenbach (Lund University) * Program co-chair: Tijs van der Storm (CWI / University of Groningen) Program Committee * Jonathan Aldrich (CMU) * Juliana Alves Pereira (University of Rennes, INRIA) * Marsha Chechik (University of Toronto) * Shigeru Chiba (University of Tokyo) * Thomas Degueule (CWI) * Sebastian Erdweg (TU Delft) * Matthew Flatt (University of Utah) * Robert Glück (University of Copenhagen) * Elisa Gonzalez Boix (VUB) * Geoffrey Mainland (Drexel University) * Chris Martens (NCSU) * Maryam Mehri Dehnavi (University of Toronto) * Peter Mosses (Swansea University / TU Delft) * David Pearce (Victoria University of Wellington) * Alex Potanin (Victoria University of Wellington) * Larissa Rocha Soares (Federal University of Bahia) * Ulrik Schultz (University of Southern Denmark) * Sandro Schulze (University of Magdeburg) * Christoph Seidl (TU Braunschweig) * Michel Steuwer (University of Glasgow) * Sam Tobin Hochstadt (Indiana University) * Kanae Tsushima (National Institute of Informatics) * Philip Wadler (University of Edinburgh) * Eric Walkingshaw (Oregon State University) * Adam Welc (Uber) * Peng Wu (Huawei)

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C FFI calls recap
by Adam 05 Jui '19

05 Jui '19

Hi Marc and list, Can you help me recap the speed aspect of C FFI use in C-compiled Scheme files: "Trampoline" in Gambit means specifically inter-module calls between C-compiled Scheme files, as well as call between binary backend-compiled code and C-compiled code, right. When you make a call to the C world from a C-compiled Scheme file, or vice versa when you call the Scheme world from the C world within a C-compiled Scheme file, I recall a bit of work takes place. This is not called a "trampoline" right, per above. It's called "continuation serialization", and which includes some Scheme stack and heap overflow checks? This work is an implied part of all the standard C FFI code forms |c-lambda| |c-define| |c-initialize| isn't it, also this is independent of compile mode e.g. (declare (not safe)), yes? About how heavy is it, per call? For even-higher-speed C access, such as doing tons of C or C++ acquire/release operations inlined in Scheme code, given acceptance of constraints on what my code does (to not overflow the Scheme stack/heap), can I use a C FFI form that does not do that? If so, which one is it - |##c-code|? Please clarify what I cannot do in |##c-code|. Thanks, Adam

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Second Call for Papers: 12th ACM SIGPLAN International Conference on Software Language Engineering (SLE 2019)
by Andrei Chis 04 Jui '19

04 Jui '19

------------------------------------------------------------------------ Call for Papers: 12th ACM SIGPLAN International Conference on Software Language Engineering (SLE 2019) co-located with SPLASH 2019 Athens, Greece October 21-22, 2019 https://conf.researchr.org/home/sle-2019 http://www.sleconf.org/2019 Follow us on twitter: https://twitter.com/sleconf ------------------------------------------------------------------------ We are pleased to invite you to submit papers to the 12th ACM SIGPLAN International Conference on Software Language Engineering (SLE 2019), held in conjunction with SPLASH 2019 at Athens, Greece on October 21-22, 2019. --------------------------- Topics of Interest --------------------------- SLE 2019 solicits high-quality contributions in areas ranging from theoretical and conceptual contributions, to tools, techniques, and frameworks in the domain of software language engineering. Topics relevant to SLE cover generic aspects of software languages development rather than aspects of engineering a specific language. In particular, SLE is interested in contributions from the following areas: * Software Language Design and Implementation - Approaches to and methods for language design - Static semantics (e.g., design rules, well-formedness constraints) - Techniques for specifying behavioral / executable semantics - Generative approaches (incl. code synthesis, compilation) - Meta-languages, meta-tools, language workbenches * Software Language Validation - Verification and formal methods for languages - Testing techniques for languages - Simulation techniques for languages * Software Language Integration and Composition - Coordination of heterogeneous languages and tools - Mappings between languages (incl. transformation languages) - Traceability between languages - Deployment of languages to different platforms * Software Language Maintenance - Software language reuse - Language evolution - Language families and variability * Domain-specific approaches for any aspects of SLE (design, implementation, validation, maintenance) * Empirical evaluation and experience reports of language engineering tools - User studies evaluating usability - Performance benchmarks - Industrial applications --------------------------- Important Dates --------------------------- All dates are Anywhere on Earth. * Fri 14 Jun 2019 - Abstract Submission * Fri 21 Jun 2019 - Paper Submission * Fri 9 Aug 2019 - Author Notification * Fri 16 Aug 2019 - Artifact Submission * Fri 30 Aug 2019 - Artifact Kick-the-tires Author Response (7 days) * Fri 20 Sep 2019 - Camera ready deadline * Wed 25 Sep 2019 - Artifact notification * Fri 27 Sep 2019 - Artifact-related paper updates * Mon-Tue 21-22 Oct 2018 - SLE Conference --------------------------- Types of Submissions --------------------------- SLE 2019 solicits three types of contributions: Research Papers, Tools Papers, and New Ideas/Vision papers. * Research papers These should report a substantial research contribution to SLE or successful application of SLE techniques or both. Full paper submissions must not exceed 12 pages, excluding bibliography. * Tool papers Because of SLE’s interest in tools, we seek papers that present software tools related to the field of SLE. Selection criteria include originality of the tool, its innovative aspects, and relevance to SLE. Any of the SLE topics of interest are appropriate areas for tool demonstrations. Submissions must provide a tool description of 4 pages excluding bibliography, and a demonstration outline including screenshots of up to 6 pages. Tool demonstrations must have the keywords “Tool Demo” or “Tool Demonstration” in the title. The 4-page tool description will, if the demonstration is accepted, be published in the proceedings. The 6-page demonstration outline will be used by the program committee only for evaluating the submission. *New ideas / vision papers New ideas papers should describe new, non-conventional SLE research approaches that depart from standard practice. They are intended to describe well-defined research ideas that are at an early stage of investigation. Vision papers are intended to present new unifying theories about existing SLE research that can lead to the development of new technologies or approaches. New ideas / vision papers must not exceed 4 pages, excluding bibliography. *Workshops Workshops will be organized by SPLASH. Please inform us and contact the SPLASH organizers if you would like to organize a workshop of interest to the SLE audience. Information on how to submit workshops can be found at the SPLASH 2019 Website. --------------------------- Artifact Evaluation --------------------------- SLE will continue to use an evaluation process for assessing the quality of the artifacts on which papers are based to foster the culture of experimental reproducibility. Authors of accepted papers are invited to submit artifacts. For more information, please have a look at the Artifact Evaluation page. --------------------------- Submission Details --------------------------- Paper Format: Submissions must conform to the ACM SIGPLAN Conference Format “acmart”; please make sure that you always use the latest ACM SIGPLAN acmart LaTeX template, and that the document class definition is \documentclass[sigplan,anonymous,review]{acmart}. Do not make any changes to this format! Using the Word template is strongly discouraged. Ensure that your submission is legible when printed on a black and white printer. In particular, please check that colors remain distinct and font sizes in figures and tables are legible. To increase fairness in reviewing, a double-blind review process has become standard across SIGPLAN conferences. For the first time, SLE will follow the double-blind process. Author names and institutions should be omitted from submitted papers, and references to the authors’ own related work should be in the third person. No other changes are necessary, and authors will not be penalized if reviewers are able to infer their identities in implicit ways. All submissions must be in PDF format. Concurrent Submissions: Papers must describe unpublished work that is not currently submitted for publication elsewhere as described by SIGPLAN’s Republication Policy. Submitters should also be aware of ACM’s Policy and Procedures on Plagiarism. Submissions that violate these policies will be desk-rejected. Submission Site: Submissions will be accepted at https://sle19.hotcrp.com/ --------------------------- Reviewing Process --------------------------- All submitted papers will be reviewed by at least three members of the program committee. Research papers and tool papers will be evaluated concerning novelty, correctness, significance, readability, and alignment with the conference call. New ideas / vision papers will be evaluated primarily concerning novelty, significance, readability, and alignment with the conference call. For fairness reasons, all submitted papers must conform to the above instructions. Submissions that violate these instructions may be rejected without review, at the discretion of the PC chairs. --------------------------- Awards --------------------------- * Distinguished paper: Award for most notable paper, as determined by the PC chairs based on the recommendations of the programme committee. * Distinguished reviewer: Award for distinguished reviewer, as determined by the PC chairs. * Distinguished artifact: Award for the artifact most significantly exceeding expectations, as determined by the AEC chairs based on the recommendations of the artifact evaluation committee. --------------------------- Publication --------------------------- All accepted papers will be published in the ACM Digital Library. AUTHORS TAKE NOTE: The official publication date is the date the proceedings are made available in the ACM Digital Library. This date may be up to two weeks prior to the first day of the conference. The official publication date affects the deadline for any patent filings related to published work. --------------------------- Organisation --------------------------- Chairs: * General chair: Oscar Nierstrasz (University of Bern, Switzerland) * Program co-chair: Bruno Oliveira (University of Hong Kong, China) * Program co-chair: Jeff Gray (University of Alabama, USA) * Artefact Evaluation co-chair: Emma Söderberg (Lund University, Sweden) * Artefact Evaluation co-chair: Abel Gomez (Universitat Oberta de Catalunya, Spain) Program Committee: Xuan Bi (Standard Chartered Bank) Erwan Bousse (TU Wien) Loli Burgeuno (Open University of Catalonia) Marsha Chechik (University of Toronto) Matteo Cimini (University of Massachusetts, Lowell) Thomas Degueule (CWI) Juan de Lara (Universidad Autónoma de Madrid) Juergen Dingel (Queen's University) Romina Eramo (University of L'Aquila) Sebastian Gerard (CEA) Paolo Giarusso (TU Delft) Esther Guerra (Universidad Autónoma de Madrid) Pablo Inostroza (CWI) Dimitris Kolovos (University of York) Marjan Mernik (University of Maribor) Alfonso Pierantonio (University of L'Aquila) Jaroslav Porubän (University of Košice) Casper Poulsen (TU Delft) Yann Regis-Gianas (Paris 7/INRIA) Bernhard Rumpe (RWTH Aachen University) Markus Schordan (Lawrence Livermore National Laboratory) Neil Sculthorpe (Nottingham Trent University) Marco Servetto (Victoria University of Wellington) Elizabeth Scott (Royal Holloway) Eugene Syriani (University of Montreal) Ulyana Tikhonova (CWI) Juha-Pekka Tolvanen (MetaCase) Antonio Valecillo (University of Malaga) Mark van den Brand (TU Eindhoven) Vadim Zaytsev (Raincode Labs) Tian Zhang (Nanjing University) --------------------------- Contact --------------------------- For additional information, clarification, or answers to questions, please contact the organizers by email (bruno(a)cs.hku.hk and gray(a)cs.ua.edu)

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Second Call for Submissions: ICFP Student Research Competition
by Sam Tobin-Hochstadt 03 Jui '19

03 Jui '19

ICFP 2019 Student Research Competition Call for Submissions ICFP invites students to participate in the Student Research Competition in order to present their research and get feedback from prominent members of the programming language research community. Please submit your extended abstracts through the submission website. ### Important dates Submissions due: 14 Jun 2019 (Friday) https://icfp19src.hotcrp.com Notification: 28 Jun 2019 (Friday) Conference: 18 August (Sunday) - 23 August (Friday) Each submission (referred to as "abstract" below) should include the student author’s name and e-mail address; institutional affiliation; research advisor’s name; ACM student member number; category (undergraduate or graduate); research title; and an extended abstract addressing the following: * Problem and Motivation: Clearly state the problem being addressed and explain the reasons for seeking a solution to this problem. * Background and Related Work: Describe the specialized (but pertinent) background necessary to appreciate the work in the context of ICFP areas of interest. Include references to the literature where appropriate, and briefly explain where your work departs from that done by others. * Approach and Uniqueness: Describe your approach in addressing the problem and clearly state how your approach is novel. * Results and Contributions: Clearly show how the results of your work contribute to programming language design and implementation in particular and to computer science in general; explain the significance of those results. * Submissions must be original research that is not already published at ICFP or another conference or journal. One of the goals of the SRC is to give students feedback on ongoing, unpublished work. Furthermore, the abstract must be authored solely by the student. If the work is collaborative with others and*or part of a larger group project, the abstract should make clear what the student’s role was and should focus on that portion of the work. * Formatting: Submissions must be in PDF format, printable in black and white on US Letter sized paper, and interpretable by common PDF tools. All submissions must adhere to the "ACM Small" template that is available (in both LaTeX and Word formats) from https://www.acm.org/publications/authors/submissions. For authors using LaTeX, a lighter-weight package, including only the essential files, is available from http://sigplan.org/Resources/Author/#acmart-format. The submission must not exceed 3 pages in PDF format. Reference lists do not count towards the 3-page limit. Further information is available at the ICFP SRC website: https://icfp19.sigplan.org/track/icfp-2019-Student-Research-Competition ICFP Student Research Competition Chair: William J. Bowman (University of British Columbia)

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