BEGIN:VCALENDAR
VERSION:2.0
PRODID:Linklings LLC
BEGIN:VTIMEZONE
TZID:America/New_York
X-LIC-LOCATION:America/New_York
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20210402T160544Z
LOCATION:Poster Module
DTSTART;TZID=America/New_York:20201119T083000
DTEND;TZID=America/New_York:20201119T170000
UID:submissions.supercomputing.org_SC20_sess337_rpost144@linklings.com
SUMMARY:Scalable Comparative Visualization of Ensembles of Call Graphs Usi
 ng CallFlow
DESCRIPTION:Posters, Research Posters\n\nScalable Comparative Visualizatio
 n of Ensembles of Call Graphs Using CallFlow\n\nP. Kesavan, Bhatia, Bhatel
 e, Brink, Pearce...\n\nOptimizing the performance of large-scale parallel 
 codes is critical for efficient utilization of computing resources. Code d
 evelopers often explore multiple execution parameters and are interested i
 n detecting and understanding bottlenecks in different executions. They us
 ually collect hierarchical performance profiles represented as call graphs
 , which combine performance metrics with their execution contexts. The cru
 cial task of exploring multiple call graphs together is challenging becaus
 e of the structural differences in the execution contexts and significant 
 variability among performance metrics. We present an enhanced version of C
 allFlow to support the exploration of ensembles of call graphs. The visual
  design combines the Sankey diagram's strengths to describe the resource f
 low of the call graphs and box-plot visualization techniques to convey the
  performance variability within the ensemble. Our interactive visual inter
 face provides linked views to explore the ensembles of call graphs by faci
 litating the analysis of structural differences and identifying similar or
  distinct call graphs.\n\nRegistration Category: Tech Program Reg Pass, Ex
 hibits Reg Pass
END:VEVENT
END:VCALENDAR