BEGIN:VCALENDAR
VERSION:2.0
PRODID:Linklings LLC
BEGIN:VTIMEZONE
TZID:America/Chicago
X-LIC-LOCATION:America/Chicago
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260522T150110Z
LOCATION:C2/3/4 Ballroom
DTSTART;TZID=America/Chicago:20181114T083000
DTEND;TZID=America/Chicago:20181114T170000
UID:submissions.supercomputing.org_SC18_sess323_post230@linklings.com
SUMMARY:VeloC: Very Low Overhead Checkpointing System
DESCRIPTION:Bogdan Nicolae and Franck Cappello (Argonne National Laborator
 y) and Adam Moody, Elsa Gonsiorowski, and Kathryn Mohror (Lawrence Livermo
 re National Laboratory)\n\nCheckpointing large amounts of related data con
 currently to stable storage is a common I/O pattern of many HPC applicatio
 ns. However, such a pattern frequently leads to I/O bottlenecks that lead 
 to poor scalability and performance. As modern HPC infrastructures continu
 e to evolve, there is a growing gap between compute capacity vs. I/O capab
 ilities. Furthermore, the storage hierarchy is becoming increasingly heter
 ogeneous: in addition to parallel file systems, it comprises burst buffers
 , key-value stores, deep memory hierarchies at node level, etc. In this co
 ntext, state of art is insufficient to deal with the diversity of vendor A
 PIs, performance and persistency characteristics. This poster proposes Vel
 oC, a low-overhead checkpointing system specifically designed to address t
 he checkpointing needs of future exascale HPC systems. VeloC offers a simp
 le API at user level, while employing an advanced multi-level resilience s
 trategy that transparently optimizes the performance and scalability of ch
 eckpointing by leveraging heterogeneous storage.\n\nRegistration Category:
  Tech Program Reg Pass, Exhibits Reg Pass\n\n
END:VEVENT
END:VCALENDAR