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1996

ENWRICH a Compute-Processor Write Caching Scheme for Parallel File Systems

8 years 4 months ago
ENWRICH a Compute-Processor Write Caching Scheme for Parallel File Systems
Many parallel scientific applications need high-performance I/O. Unfortunately, end-to-end parallel-I/O performance has not been able to keep up with substantial improvements in parallel-I/O hardware because of poor parallel file-system software. Many radical changes, both at the interface level and the implementation level, have recently been proposed. One such proposed interface is collective I/O, which allows parallel jobs to request transfer of large contiguous objects in a single request, thereby preserving useful semantic information that would otherwise be lost if the transfer were expressed as per-processor non-contiguous requests. Kotz has proposed disk-directed I/O as an efficient implementation technique for collective-I/O operations, where the compute processors make a single collective data-transfer request, and the I/O processors thereafter take full control of the actual data transfer, exploiting their detailed knowledge of the disk layout to attain substantially improv...
Apratim Purakayastha, Carla Schlatter Ellis, David
Added 02 Nov 2010
Updated 02 Nov 2010
Type Conference
Year 1996
Where IOPADS
Authors Apratim Purakayastha, Carla Schlatter Ellis, David Kotz
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