10th ACM SIGPLAN Workshop on Transactional Computing
June 15-16, 2015
Portland, Oregon, USA
(part of FCRC 2015)
Updates and News

June 15, 2015: The TRANSACT 2015 Workshop thanks Oracle Labs for its generous support.

June 1, 2015: The TRANSACT 2015 program is now available here.

June 1, 2015: Child care is available at FCRC. Please contact Shannon Cunningham for more information.

April 28, 2015: The list of accepted papers is now online.

March 4, 2015: FCRC Hotel Reservation Information is available here.

February 17, 2015: Due to multiple requests, the submission deadline has been extended to February 24, 2015.

February 15, 2015: The TRANSACT 2015 submission site is now live.

November 10, 2014: The TRANSACT 2015 website is now live.


The past decade has seen an explosion of interest in programming languages, systems, and hardware to support transactions, speculation, and related alternatives to classical lock-based concurrency. Recently, transactional memory has crossed two new thresholds. First, IBM and Intel are now shipping processors with hardware support for transactional memory. Second, the C++ Standard Committee has begun investigation into transactional memory as a new language feature. These developments highlight the demand for continued high quality TM research.

Transact 2015 will provide a forum to present and discuss the latest research on all aspects of transactional computing. The tenth in the series, it will extend over two days (rather than the usual one) during the Federated Computing Research Conference (FCRC). The scope of the workshop is intentionally broad, with the goal of encouraging interaction across the languages, architecture, systems, database, and theory communities. Papers may address implementation techniques, foundational results, applications and workloads, or experience with working systems. Environments of interest include the full range from multithreaded or multicore processors to high-end parallel computing.


The workshop seeks papers on topics related to all areas of software and hardware for transactional computing. Specific topics of interest include but are not limited to:

Papers should present original research. As transactional memory spans many disciplines, papers should provide sufficient background material to make them accessible to the broader community. Papers focused on foundations should indicate how the work can be used to advance practice; papers on experiences and applications should indicate how the experiments reinforce or reflect principles.


Please use EasyChair to submit a paper to TRANSACT!.

Papers must be submitted in PDF, and be no more than 8 pages in standard two-column SIGPLAN conference format including figures and tables but not including references. Shorter submissions are welcome. The submissions will be judged based on the merit of the ideas rather than the length. Submissions must be made through the on-line submission site. Final papers will be available to participants electronically at the meeting, but to facilitate resubmission to more formal venues, no archival proceedings will be published, and papers will not be sent to the ACM Digital Library.

Authors will have the option of having their final paper accessible from the workshop website. Authors must be familiar with and abide by SIGPLAN's republication policy, which forbids simultaneous submission to multiple venues and requires disclosing prior publication of closely related work.

At the discretion of the program committee and with the consent of the authors, particularly worthy papers may be recommended for a special journal issue.

Registration and Workshop Information

Please see the FCRC homepage for information about registration, hotels, local attractions, etc.

Important Dates
Workshop Program 

One of the goals this year is to increase the amount of discussion during Transact. As such, presenters should aim to give a 20-minute talk, leaving 5 minutes for questions and discussion. We will also have a breakout session in which we discuss what research directions we ought to pursue in the future. In addition, we have time set aside for "lightning talks" (see below for details).

Monday morning (9:00-11:00am)
Session Chair: Justin Gottschlich Monday early afternoon (2:00-3:40pm)
Session Chair: Stephan Diestelhorst Monday late afternoon (4:00-5:30pm) Tuesday morning (9:00-11:00am)
Session Chair: Victor Luchangco Tuesday early afternoon (2:00-3:30pm)
Session Chair: Michael Spear Tuesday late afternoon (4-5:30)
Session Chair: Michael Scott

Anyone may sign up to give a lightning talk, which must be no more than 5 minutes, ideally shorter. To sign up ahead of time, send mail to the PC chair (victor.luchangco@oracle.com). You may sign up for multiple talks on different topics. If there is time, we will also allow signups during the workshop; hopefully some talks will be inspired by the breakout session on Monday afternoon.

Acepted Papers
"Anatomy of a Meltdown: Non-Blocking Performance under High Contention"
Dan Alistarh and William Hasenplaugh
"Chihuahua: A Concurrent, Moving, Garbage Collector using Transactional Memory"
Todd Anderson, Melissa O'Neill and John Sarracino
"Refined Transactional Lock Elision"
Dave Dice, Alex Kogan and Yossi Lev
"Between All and Nothing — Versatile Aborts in Hardware Transactional Memory"
Stephan Diestelhorst, Martin Nowack, Michael Spear and Christof Fetzer
"Transactional Interference-less Balanced Tree"
Ahmed Hassan, Roberto Palmieri and Binoy Ravindran
"Transactional Tools for the Third Decade"
Matthew Kilgore, Stephan Louie, Chao Wang, Tingzhe Zhou, Wenjia Ruan, Yujie Liu and Michael Spear
"The correctness criterion for Deferred Update Replication"
Tadeusz Kobus, Maciej Kokocinski and Pawel T. Wojciechowski
"A Simple Deterministic Algorithm for Guaranteeing the Forward Progress of Transactions"
Charles Leiserson
"Making Impractical Implementations Practical: Observationally Cooperative Multithreading Using HLE"
Melissa O'Neill and Christopher Stone
"An Opaque Hybrid Transactional Memory"
Wenjia Ruan and Michael Spear
"Performance Analysis of Concurrent Red-Black Trees on HTM Platforms"
Dimitrios Siakavaras, Konstantinos Nikas, Georgios Goumas and Nectarios Koziris
"Hardware support for Local Memory Transactions on GPU Architectures"
Alejandro Villegas, Angeles Navarro, Rafael Asenjo, Oscar Plata, Rafael Ubal and David Kaeli
"An Update on Haskell H/STM"
Ryan Yates and Michael Scott
General Chair
Program Chair
Web Chair
Program Committee
Steering Committee

TRANSACT 2015 was sponsored in part by:


Please contact the program chair