SC12 Home > SC12 Schedule > SC12 Presentation - Uncovering New Parallel Program Features with Parallel Block Vectors and Harmony

SCHEDULE: NOV 10-16, 2012

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.

Uncovering New Parallel Program Features with Parallel Block Vectors and Harmony

SESSION: Doctoral Showcase - Early Research Showcase

EVENT TYPE: Doctoral Showcase

TIME: 3:30PM - 5:00PM

SESSION CHAIR: Wojtek James Goscinski

Presenter(s):Melanie Kambadur


The efficient execution of well-parallelized applications is central to performance in the multicore era. Program analysis tools support the hardware and software sides of this effort by exposing relevant features of multithreaded applications. This talk describes Parallel Block Vectors, which uncover previously unseen characteristics of parallel programs. Parallel Block Vectors, or PBVs, provide block execution profiles per concurrency phase (e.g., the block execution profile of all serial regions of a program). This information provides a direct and fine-grained mapping between an application's runtime parallel phases and the static code that makes up those phases. PBVs can be collected with minimal application perturbation using Harmony, an instrumentation pass for the LLVM compiler. We have already applied PBVs to uncover novel insights about parallel applications that are relevant to architectural design, and we also have ideas for using PBVs in fields such as software engineering, compilers, and operating systems.

Chair/Presenter Details:

Wojtek James Goscinski (Chair) - Monash University

Melanie Kambadur - Columbia University

Add to iCal  Click here to download .ics calendar file

Add to Outlook  Click here to download .vcs calendar file

Add to Google Calendarss  Click here to add event to your Google Calendar