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DTSTAMP:20181221T160905Z
LOCATION:C2/3/4 Ballroom
DTSTART;TZID=America/Chicago:20181114T083000
DTEND;TZID=America/Chicago:20181114T170000
UID:submissions.supercomputing.org_SC18_sess323_post198@linklings.com
SUMMARY:Using Darshan and CODES to Evaluate Application I/O Performance
DESCRIPTION:Poster\nTech Program Reg Pass, Exhibits Reg Pass\n\nUsing Dars
 han and CODES to Evaluate Application I/O Performance\n\nKhetawat, Zimmer,
  Mueller, Vazhkudai, Atchley\n\nBurst buffers have become increasingly pop
 ular in HPC systems, allowing bursty I/O traffic to be serviced faster wit
 hout slowing down application execution. The ubiquity of burst buffers cre
 ates opportunities for studying their ideal placement in the HPC topology.
  Furthermore, the topology of the network interconnect can also affect the
  performance of the storage hierarchy for different burst buffer placement
  schemes.  To that end, we create a reproducible framework that allows ind
 ividual centers to develop their own models and evaluate performance based
  on their workload characteristics. \nWe use CODES to create models that s
 imulate the network and storage layers of an HPC system and Darshan traces
  for I/O replay. We augment the Darshan traces with synchronization primit
 ives, and allow multi-dimensional scaling of traces to represent future wo
 rkload characteristics. Finally, we evaluate the effect of network topolog
 y, storage architecture, and application I/O patterns on overall I/O perfo
 rmance.
URL:https://sc18.supercomputing.org/presentation/?id=post198&sess=sess323
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