BIB-VERSION:: CS-TR-v2.0
ID:: ncstrl.dartmouthcs//TR98-329
ENTRY:: April 23, 1998
ORGANIZATION:: Dartmouth College, Computer Science
TITLE:: An Implementation of  the Vesta Parallel File System API  on the Galley Parallel File System
TYPE:: Technical Report (paper)
REVISION:: 1
AUTHOR:: Carter, Matthew P.
AUTHOR:: Kotz, David
DATE:: April 1998
RETRIEVAL:: For a paper copy, email <reports@cs.dartmouth.edu>
RETRIEVAL:: For a paper copy, write to
       Technical Report Librarian
       Department of Computer Science
       Dartmouth College
       6211 Sudikoff Laboratory
       Hanover, NH 03755-3510
       USA
RETRIEVAL:: Compressed Postscript at http://www.cs.dartmouth.edu/reports/TR98-329.ps.Z
RETRIEVAL:: PDF at http://www.cs.dartmouth.edu/reports/TR98-329.pdf
ABSTRACT:: 
To demonstrate the flexibility of the Galley parallel file system and
to analyze the efficiency and flexibility of the Vesta parallel file
system interface, we implemented Vesta's application-programming
interface on top of Galley.  We implemented the Vesta interface using
Galley's file-access methods, whose design arose from extensive testing
and characterization of the I/O requirements of scientific applications
for high-performance multiprocessors.  We used a parallel CPU, parallel
I/O, out-of-core matrix-multiplication application to test the Vesta
interface in both its ability to specify data access patterns and in
its run-time efficiency.  In spite of its powerful ability to specify the
distribution of regular, non-overlapping data access patterns across
disks, we found that the Vesta interface has some significant
limitations.  We discuss these limitations in detail in the paper,
along with the performance results.
END:: ncstrl.dartmouthcs//TR98-329