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21. LESS Seminar: Leiserson
detector for cilk, an algorithmic multithreaded programming language. If acilk program run on a given input data set has a determinacy race,
http://www.cs.utexas.edu/users/less/seminar/leiserson.html
Debugging Multithreaded Programs
Charles Leiserson
MIT Lab for Computer Science
A parallel multithreaded program that is ostensibly deterministic may nevertheless behave nondeterministically due to bugs in the code. These bugs are called determinacy races , and they result when one thread updates a location in shared memory while another thread is concurrently accessing the location. We have implemented a provably efficient determinacy-race detector for Cilk, an algorithmic multithreaded programming language. If a Cilk program run on a given input data set has a determinacy race, our debugging tool, which we call the "Nondeterminator," guarantees to detect and localize the race. The core of the Nondeterminator is an asymptotically efficient serial algorithm for detecting determinacy races in series-parallel dags (directed acyclic graphs). For a Cilk program that runs in T time on one processor and uses v shared-memory locations, the Nondeterminator runs in O( T a v v )) time, where a is Tarjan's functional inverse of Ackermann's function, a very slowly growing function which, for all practical purposes, is bounded above by 4. The Nondeterminator uses at most a constant factor more space than does the original program. On a variety of Cilk program benchmarks, the Nondeterminator exhibits a slowdown of less than 12 compared with the serial execution time of the original optimized code, which we contend is an acceptable slowdown for debugging purposes. We have recently extended the original Nondeterminator tool to check programs that incorporate locking. We overview how our new Nondeterminator-2 tool detects data races. We also discuss the guarantees of determinacy that it can offer.

22. DBLP: Charles E. Leiserson
Charles E. Leiserson Efficient Detection of Determinacy Races in cilk Programs . E. Leiserson programming Irregular Parallel Applications in cilk.
http://www.sigmod.org/dblp/db/indices/a-tree/l/Leiserson:Charles_E=.html
Charles E. Leiserson
List of publications from the DBLP Bibliography Server FAQ Ask others: ACM CiteSeer CSB Google ... Bradley C. Kuszmaul , Charles E. Leiserson: Adversarial Analyses of Window Backoff Strategies. IPDPS Next Generation Software Program - NSFNGS - PI Workshop 2004 EE Michael A. Bender Jeremy T. Fineman ... Seth Gilbert , Charles E. Leiserson: On-the-fly maintenance of series-parallel relationships in fork-join multithreaded programs. SPAA 2004 EE Charles E. Leiserson: Design and Analysis of Dynamic Multithreaded Algorithms. SWAT 2004 EE Charles E. Leiserson: Cache-Oblivious Algorithms. CIAC 2003 Thomas H. Cormen , Charles E. Leiserson, Ronald L. Rivest Clifford Stein : Introduction to Algorithms, Second Edition. The MIT Press and McGraw-Hill Book Company 2001 EE Ching Law , Charles E. Leiserson: A New Competitive Analysis of Randomized Caching. ISAAC 2000 EE Matteo Frigo , Charles E. Leiserson, Harald Prokop Sridhar Ramachandran : Cache-Oblivious Algorithms. FOCS 1999 EE Charles E. Leiserson: Design and Analysis of Algorithms for Shared-Memory Multiprocessors (Abstract). WADS 1999 EE Robert D. Blumofe

23. MIT EECS Event
cilk minimally extends the C programming language to allow interactions among Not only do cilk programs scale up to run efficiently on multiple
http://www.eecs.mit.edu/AY98-99/events/4.html
Programming Shared-Memory Multiprocessors Using Cilk
Charles E. Leiserson
M.I.T., EECS and LCS
Monday, September 21, 1998
4:00 PM (refreshments 3:45)
Edgerton Hall, Room 34-101
EECS Colloquium
Abstract Cilk is a language being developed in the MIT Laboratory for Computer Science with the goal of making parallel programming easy. Cilk minimally extends the C programming language to allow interactions among computational threads to be specified in a simple and high-level fashion. Cilk's provably efficient runtime system dynamically maps a user's program onto available physical resources, freeing the programmer from concerns of communication protocols and load balancing. In addition, Cilk provides an abstract performance model that a programmer can use to predict the multiprocessor performance of his application from its execution on a single processor. Not only do Cilk programs scale up to run efficiently on multiple processors, but unlike existing parallel programming environments, such as MPI and HPF, Cilk programs "scale down:" the efficiency of a Cilk program on one processor rivals that of a comparable C program. In this talk, I will provide a tutorial on the Cilk language for people with a basic background in computer programming. I will explain how to program multithreaded applications in Cilk and how to analyze their performance. I will illustrate some of the ideas behind Cilk using the example of MIT's championship computer-chess programs, *Socrates and Cilkchess. I will also briefly sketch how the software technology underlying Cilk actually works.

24. LtU Classic Archives
cilk is a language for multithreaded parallel programming based on ANSI C. cilk is cilk provides an effective platform for programming dense and sparse
http://lambda-the-ultimate.org/classic/message11724.html
Lambda the Ultimate
Cilk
started 3/30/2004; 2:34:09 PM - last post 4/2/2004; 1:22:23 AM Mark Evans - Cilk
3/30/2004; 2:34:09 PM (reads: 10944, responses: 1) Cilk Cilk is a language for multithreaded parallel programming based on ANSI C. Cilk is designed for general-purpose parallel programming, but it is especially effective for exploiting dynamic, highly asynchronous parallelism, which can be difficult to write in data-parallel or message-passing style. Using Cilk, our group has developed three world-class chess programs, StarTech, *Socrates, and Cilkchess. Cilk provides an effective platform for programming dense and sparse numerical algorithms, such as matrix factorization and N-body simulations, and we are working on other types of applications. Unlike many other multithreaded programming systems, Cilk is algorithmic, in that the runtime system employs a scheduler that allows the performance of programs to be estimated accurately based on abstract complexity measures.
Posted to Parallel/Distributed by Mark Evans on 3/30/04; 2:34:46 PM

25. Announcements
cilk is a language for multithreaded parallel programming based on ANSI C.cilk is designed for generalpurpose parallel programming, but it is especially
http://www.lambdacs.com/cpt/Announcements.html
Announcements
Last modified: Tue Aug 28 16:00:27 PDT 2001 : Announcing release 2.2 of the Hood threads library : DEC's thread analysis and debugging tool Visual Threads. : Race condition test tools : GNU Pth - The GNU Portable Threads : Assure for Threads (from KAI) : Flow-Based Programming: A New Aproach to Application Development : Executable formal semantics of Java. (PhD work) : Draft 3 of the joint revision to POSIX and the Single UNIX Specification V3 : Alternate Solaris 8 Multithreaded libthread Library : RELEASE: FSU PThreads V3.14 : I am pleased to announce the availability of Cilk-5.3. : Research Position in Execution-Driven Performance : New project underway to enhance Linux Threading : New threaded database server released to the opensource ================================================================ A001: Announcing release 2.2 of the Hood threads library A002: DEC's thread analysis and debugging tool Visual Threads. Hi guys, I wanted to contribute a pointer for you FAQ's to DEC's thread analysis and debugging tool called Visual Threads. Its one of the few tools around that can detect/locate race conditions and deadlocks (among other errors). It runs on Alpha and is compatible with programs using pthreads or Java. Here's a pointer: http://www.unix.digital.com/visualthreads/ - Stefan P.S. Truth in advertising: this product had its genesis in some research I did as an intern at DEC. ================================================================ A003: Race condition test tools

26. CSLI Calendar, 23 September 1998, Vol. 14:1
Not only do cilk programs scale up to run efficiently on multiple existingparallelprogramming environments, such as MPI and HPF, cilk programs scale
http://www-csli.stanford.edu/Archive/calendar/1998-99/msg00000.html
[Next] [Index] [Thread]
CSLI Calendar, 23 September 1998, vol. 14:1
http://math.stanford.edu/html/colloquium.html http://www-pcd.stanford.edu/cs547/ 2:00pm International Computer Science Institute Main Lecture Hall at ICSI, 1947 Center Street, Berkeley AVALANCHE - Simulating Value Chain Coordination with Artificial Life Agents Boris Padovan University of Freiburg Abstract below 3:15pm Computer Science Infolab Seminar Gates B-12 Rethinking Information Dissemination and Use: New Models for Documents, Collaboration and Information Access Robert Wilensky UC Berkeley Abstract below WEDNESDAY, 30 SEPTEMBER 4:15pm AI-Vision-Robotics Division Colloquium Gates 104 To be announced http://www-formal.stanford.edu/aicolloq/

27. Dictionary Of Programming Languages
While cilk was developed in academia, it is robust enough for developing sizable cilk programs have won or placed in several programming competitions.
http://cgibin.erols.com/ziring/cgi-bin/cep/cep.pl?_key=Cilk

28. Cilk
cilk is designed for general purpose parallel programming, According to cilk,a programmer should structure a program to expose parallelism and exploit
http://directory.fsf.org/devel/prog/Other_programming_languages/cilk.html
Top Software development Programming languages Other programming languages cilk
cilk - Algorithmic language for multi-threaded parallel processing
Cilk is designed for general purpose parallel programming, but it is especially effective for exploiting dynamic asynchronous, parallelism. The current release runs on symmetric multiprocessor machines that support Posix threads, GNU make, and gcc. You can also run Cilk on uniprocessor machines, which is useful for development and debugging, although you won't get any parallel speedup. According to cilk, a programmer should structure a program to expose parallelism and exploit locality, leaving the runtime system to schedule the computation to run efficiently. Thus, the runtime system handles details like load balancing, paging, and communication protocols. Unlike other multithreaded languages, however, cilk is algorithmic in that the runtime system guarantees efficient and predictable performance.
Obtaining
Web page http://supertech.lcs.mit.edu/cilk/ Source tarball http://supertech.lcs.mit.edu/cilk/cilk-5.3.2.tar.gz

29. Papers And Handouts
cilk Manual 5.3.2 (pdf); Minicourse on Multithreaded programming (compressedpostscript). Lecture 3. Lecture 3 Sorting Code Handout (ps) (latex)
http://www.comp.nus.edu.sg/~sma5509/handouts.html
Papers and handouts Lecture 3

30. CSAIL Research Abstract
Jcilk is a Javabased multithreaded language for parallel programming that extends Jcilk introduces three keywords into Java cilk , spawn , and sync .
http://publications.csail.mit.edu/abstracts/abstracts05/jsd_angelee_cel/jsd_ange
Introduction Architecture, Systems
Language, Learning,

Physical, Biological
...
Theory
JCilk A Java-Based Multithreaded Programming Language
Introduction JCilk is a Java-based multithreaded language for parallel programming that extends the semantics of Java by introducing "Cilk-like" Language Design and Features JCilk introduces three keywords into Java: cilk spawn , and sync . The keyword cilk is used as a method modifier to declare a method to be a Cilk method, which means that it can be spawned to execute it in parallel. When a parent method spawns a child method (by preceding a method call with the spawn keyword), the parent can continue to execute in parallel with its spawned child method. The sync keyword acts as a local synchronization barrier. Program control cannot go beyond a sync statement until all previously spawned children have terminated. In general, until a Cilk method executes a sync statement, it cannot safely use results returned by previously spawned children. Since Java allows a method to signal an exception rather than return normally, JCilk's semantics must extend the Cilk semantics to handle this possibility. A method generally throws an exception to indicate that it has completed abnormally or unsuccessfully. When this happens in Java, control is passed to the nearest dynamically enclosing

31. FAQTs - Knowledge Base - Faqts : Computers : Programming : Languages : Cilk
faqts Computers programming Languages cilk. My Recent Searches. All ofFAQTs, faqts Knowledge Base, cilk Folder
http://www.faqts.com/knowledge_base/index.phtml/fid/1408

32. Diary For Pfdietz
A team using cilk won the ICFP 98 programming Contest, and cilkchess, a chessprogram written in cilk, came in 4th (out of 30 programs) in the 1999 World
http://advogato.org/person/pfdietz/diary.html?start=15

33. Compilers.net > Directory > Free > Compilers > C/c++
Using cilk, our group has developed three worldclass chess programs, StarTech, cilk provides an effective platform for programming dense and sparse
http://www.compilers.net/Dir/Free/Compilers/CCpp.htm
compilers.net directory free compilers > c/c++ free c/c++ compilers ACC Apple's Macintosh Programmer's Workshop ATTOC Borland C++ Compiler 5.5 Latest version of excellent Inprise's compiler now completely free for download. Borland Turbo C 2.01 Bloodshed Dev-C++ A freeware C compilers for 6502 based systems. This is a C-compiler for Microchip (PIC) and Scenix (SX) microcontrollers. It works under MS Windows 95/98/ME/NT/2000 and has a built-in user interface. cc65 is a C compiler that was originally adapted for the Atari 8bit computers by John R. Dunning. It is a Small C descendant but has several extensions, and some of the limits of the original Small C compiler are gone. Ch: an embeddable C/C++ interpreter Ch from SoftIntegration, Inc. is a superset of C interpreter. It is the most complete C interpreter in existence for scripting. Ch can interface with C/C++ binary libraries and be embedded in other application programs. It supports 1990 ISO C Standard (C90), major features in C99, classes in C++, POSIX, X11/Motif, OpenGL, ODBC, XML, GTK+, CGI, 2D/3D graphical plotting, socket/Winsock, and shell programming. It can run in Windows, Solaris, Linux and HP-UX. The extensions in Ch provide the simplest solution for numerical computing and visualization in C/C++ domain. Cilk CINT CINT is a C/C++ interpreter aimed at processing C/C++ scripts. Scripts are programs performing specific tasks. Generally execution time is not critical, but rapid development is. Using an interpreter the compile and link cycle is dramatically reduced facilitating rapid development. CINT makes C/C++ programming enjoyable even for part-time programmers.

34. Cilk: A Multithreaded Programming Language
cilk provides an effective platform for programming dense and sparse numerical Unlike many other multithreaded programming systems, cilk is algorithmic,
http://lists.freebsd.org/pipermail/freebsd-ports/2003-October/005416.html
Cilk: a multithreaded programming language
Pedro F. Giffuni giffunip at yahoo.com
Sat Oct 11 16:07:03 PDT 2003 Hi; The port I'm working on (TAUCS) wants to use Cilk: http://supertech.lcs.mit.edu/cilk/ http://shopping.yahoo.com More information about the freebsd-ports mailing list

35. CILK: A Multi-Threaded Programming System For Meta-Computers - Storming Media
Contracts F3060297-l-0150 and F306O2-97-l-0270 were a joint effort but fundedusing different contract vehicles at the request of DARPA, the sponsoring
http://www.stormingmedia.us/47/4759/A475993.html

36. Tasks As Objects
cilk !Blumofe95! is a Cbased multithreaded parallel programming system.A cilk programs is composed of threads, which the run-time system distributes
http://charm.cs.uiuc.edu/papers/RobertThesis.www/node14.html
Next: Data as Objects Up: Related Work Previous: Process Scheduling and Migration Contents
Tasks as Objects
Several distributed multi-threaded systems allow objects or threads representing tasks to migrate to different address spaces of a distributed-memory machine. Although not all of these systems are based on traditional object-oriented languages such as C++, the tasks in these systems are related to objects in that they have private state ( e.g. a thread stack) and code. UPVM [#!Konuru:1997:MUL!#] presents a lightweight process model with a PVM-like message-passing library, which supports thread migration independent of an object-oriented framework. PM2 [#!PM2-96!#] is another migratable-thread system, which treats threads as remote procedure calls, that return some data on completion. These systems simplify the migration of threads by reserving thread stack space in the virtual memory space of every processor, so that pointers to stack items remain valid after migration. An early object-based parallel programming system is Sloop [#!Lucco87!#]. Sloop distributed objects are collections of component objects, managed by system-defined container types called domains . Applications can use a variety of alignment calls to advise the run-time system on object placement, but the run-time system has the freedom to redistribute objects. Object interactions are monitored so that the run-time system can relocate objects to improve locality. Although a simple load balancing system is mentioned, no detailed description is provided.

37. Computer Chess / Chess Engines (Winboard) & Chess Programming Info [Chessopolis
cilk Project cilk is a strong program for multi-processor machines. Has sourcecode and info on parallel computing. Not a Winboard engine.
http://www.chessopolis.com/cchess.htm

Home
Chess Links Discussion Forum Chess Files ... Contact Us Computer Chess Amateur
Chess Engines
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... Variants
whole site Links ChessFiles
Advanced Search
Computer Chess Amateur / Freeware Chess Engines Note:
Many of these are Winboard compatible. You will find commercial programs on the Software page. WBEC-Ridderkerk - Maintains a list of Winboard-compatible engines with download links. Aldebaran
Amyan

Arasan

Armageddon
...
BACE
(Source only - you must compile)
Beowulf
- Chess engine project with a goal of producing readable source code useful for learning chess programming. Bestia Betsy Blikskottel Chenard - Older program with own interface. Chessterfield - Neural-network based. Cilian Cilk Project - Cilk is a strong program for multi-processor machines. Has source code and info on parallel computing. Not a Winboard engine. ColChess - Engine for Linux/Unix. - Experimental object-oriented chess engine. Does not use brute force. Crafty - The leader of the pack. This is the ftp server just look for the latest version.

38. Index Of /pub/programming/language/cilk
.DIR Parent Directory CMP cilk-5.2.1.tar.gz 05-Dec-1998 0000 1.0M......Index of /pub/programming/language/cilk. Icon Name Last modified Size
http://custom.lab.unb.br/pub/programming/language/cilk/
Index of /pub/programming/language/cilk
Name Last modified Size Description ... Cilk-5.2.1.tar.gz 05-Dec-1998 00:00 1.0M FrigoLePr99.ps.gz 03-Jul-2000 00:00 85K PPoPP95.ps.Z 06-Apr-1995 00:00 145K Prokop99.ps.gz 03-Jul-2000 00:00 297K README 10-Jun-1996 00:00 479 USENIX97.ps.gz 14-Nov-1996 00:00 79K astark-thesis.ps.gz 02-Jun-1998 00:00 610K brelly.ps.gz 11-Apr-1998 00:00 98K bsong-msthesis.ps.gz 13-Nov-1998 00:00 98K cheng-thesis.ps.gz 12-Jun-1998 00:00 351K cilk-5.3-beta1.tar.gz 30-May-2000 00:00 753K cilk-5.3.1.tar.gz 07-Dec-2000 00:00 829K cilk-5.3.2.tar.gz 18-May-2002 00:00 931K cilk-5.3.tar.gz 05-Jun-2000 00:00 827K cilk5.ps.gz 24-Mar-1998 00:00 114K cilkjpdc96.ps.gz 17-Oct-1996 00:00 299K deberg-thesis-src.tgz 08-Apr-2003 08:22 229K deberg-thesis.pdf 08-Apr-2003 08:22 319K debruijn.ps.gz 15-Oct-1998 00:00 73K distCilk5.1.tar.gz 09-Jan-1998 00:00 425K frigo-ms-thesis.ps.gz

39. Freshmeat.net: Project Details For Cilk
cilk is a language for multithreaded parallel programming based on ANSI C.It contains the cilk http//supertech.lcs.mit.edu/cilk/cilk5.3.2.tar.gz
http://freshmeat.net/projects/cilk/
OSTG ThinkGeek Slashdot ITMJ ... Whitepapers Ads_kid=0;Ads_bid=0;Ads_xl=0;Ads_yl=0;Ads_xp='';Ads_yp='';Ads_xp1='';Ads_yp1='';Ads_opt=0; Ads_wrd='Cilk,Intended_Audience,Developers,Topic,Software_Development,Compilers,License,OSI_Approved,GNU_General_Public_LicenseGPL_'; Ads_prf='page=projects'; Ads_par='';Ads_cnturl='';Ads_sec=0;Ads_channels='RON_P1_Leaderboard'; Mon, Sep 19th home browse articles ... scoop 23:06 PDT Search for in projects articles comments
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Section: Unix

Ads_kid=0;Ads_bid=0;Ads_xl=0;Ads_yl=0;Ads_xp='';Ads_yp='';Ads_xp1='';Ads_yp1='';Ads_opt=0; Ads_wrd='Cilk,Intended_Audience,Developers,Topic,Software_Development,Compilers,License,OSI_Approved,GNU_General_Public_LicenseGPL_'; Ads_prf='page=projects'; Ads_par='';Ads_cnturl='';Ads_sec=0;Ads_channels='RON_P2_Skyscraper'; Ads_kid=0;Ads_bid=0;Ads_xl=0;Ads_yl=0;Ads_xp='';Ads_yp='';Ads_xp1='';Ads_yp1='';Ads_opt=0; Ads_wrd='Cilk,Intended_Audience,Developers,Topic,Software_Development,Compilers,License,OSI_Approved,GNU_General_Public_LicenseGPL_'; Ads_prf='page=projects'; Ads_par='';Ads_cnturl='';Ads_sec=0;Ads_channels='RON_OSTG_Services'; Added: Mon, Jun 5th 2000 12:03 PDT

40. Broadcasting Public Notice CRTC 2004-74
of radio programming undertaking cilkFM Kelowna, British Columbia. to add an FM transmitter at Penticton to broadcast the programming of cilk-FM.
http://www.crtc.gc.ca/archive/ENG/Notices/2004/pb2004-74.htm
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Broadcasting Public Notice CRTC 2004-74 Ottawa, 5 October 2004 The Commission has received the following applications. The deadline for submission of interventions/comments is 9 November 2004 Item Applicant and Locality Radio CJLS Limited (CJLS-FM)
Yarmouth, Nova Scotia 3937844 Canada Inc. (CJPR-FM)
Elkford, British Columbia Silk FM Broadcasting Ltd. (CILK-FM) Penticton, British Columbia Silk FM Broadcasting Ltd. (CILK-FM) Vernon , British Columbia Yarmouth, Nova Scotia Application No. Application by Radio CJLS Limited to amend the licence of radio programming undertaking CJLS-FM Yarmouth. The licensee proposes to add a low-power FM transmitter at Yarmouth to broadcast the programming of CJLS-FM, in order to resolve the signal problems caused by a ridge or rough terrain blockage from the Tusket Falls transmitting site. The applicant noted that adding an FM transmitter is the most economical way to improve the signal deficiencies of CJLS-FM.

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