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OLCF User Assistance Center

Can't find the information you need below? Need advice from a real person? We're here to help.

OLCF support consultants are available to respond to your emails and phone calls from 9:00 a.m. to 5:00 p.m. EST, Monday through Friday, exclusive of holidays. Emails received outside of regular support hours will be addressed the next business day.

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2015 OLCF Users Conference Call: Wraprun

Details

Date:
October 28, 2015
Time:
12:00 pm - 12:30 pm
Event Tags:

Venue

Bldg. 5600, C101
Oak Ridge National Laboratory
Oak Ridge, TN 37831 United States

Organizer

Suzanne Parete-Koon
Phone:
865-576-6599

The OLCF hosts monthly User Conference Call. These calls are your opportunity to speak with center personnel to get the latest updates, express any concerns you may have, etc. No registration is required for this event.

Monthly Topic: Wraprun

Wraprun is a wrapper utility for ALPS/Aprun that bundles tasks into single aprun calls. It permits launching multiple independent instances of an application on singular nodes or even multiple unique applications on several nodes in a single aprun call. Bundling tasks reduces aprun overhead and allows more tasks to be started per batch job. Wraprun works with both MPI-aware and serial executables. We will give an overview of how it works, how to use it, and its limitations.

Speakers: Adam Simpson and Matt Belhorn

Slides: wraprun

Video: Still waiting on upload. Check back 11/4.

Documentation: https://www.olcf.ornl.gov/kb_articles/wraprun/

OLCF News Slides: OLCF_news_9_23