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SCHEDULE: NOV 16-21, 2014
When viewing the Technical Program schedule, on the far righthand side is a column labeled "PLANNER." Use this planner to build your own schedule. Once you select an event and want to add it to your personal schedule, just click on the calendar icon of your choice (outlook calendar, ical calendar or google calendar) and that event will be stored there. As you select events in this manner, you will have your own schedule to guide you through the week.
MC-Checker: Detecting Memory Consistency Errors in MPI One-Sided Applications
SESSION: MPI
EVENT TYPE: Papers
TIME: 11:30AM - 12:00PM
SESSION CHAIR: Ron Brightwell
AUTHOR(S):Zhezhe Chen, James Dinan, Zhen Tang, Pavan Balaji, Hua Zhong, Jun Wei, Tao Huang, Feng Qin
ROOM:393-94-95
ABSTRACT:
One-sided communication decouples data movement and synchronization by providing support for asynchronous reads and updates of distributed shared data. While such interfaces can be extremely efficient, they also impose challenges in properly performing asynchronous accesses to shared data.
This paper presents MC-Checker, a new tool that detects memory consistency errors in MPI one-sided applications. MC-Checker first performs online instrumentation and captures relevant dynamic events, such as one-sided communications and load/store operations. MC-Checker then performs analysis to detect memory consistency errors. When found, errors are reported along with useful diagnostic information. Experiments indicate that MC-Checker is effective at detecting and diagnosing memory consistency bugs in MPI one-sided applications, with low overhead, ranging from 24.6% to 71.1%, with an average of 45.2%.
Chair/Author Details:
Ron Brightwell (Chair) - Sandia National Laboratories
Zhezhe Chen - Twitter
James Dinan - Intel Corporation
Zhen Tang - Chinese Academy of Sciences
Pavan Balaji - Argonne National Laboratory
Hua Zhong - Chinese Academy of Sciences
Jun Wei - Chinese Academy of Sciences
Tao Huang - Chinese Academy of Sciences
Feng Qin - Ohio State University
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