Thursday, September 2, 2004
Noon - 1 pm
Hamerschlag Hall D-210
Sandia National Labs
SYSIO: A user-level VFS implementation for the Sandia/Cray Red Storm
Light weight compute node operating systems for very high-end computing
architectures such as the Sandia/Cray Red Storm and IBM BG/L designs
would discourage, or even preclude, direct support by the operating
system of a file system for use by the application. However, the
appearance and increasing availability of network attached secure disk
protocols introduces the option of addressing this need directly within
and by the application.
This talk will motivate and describe the design and implementation of a
POSIX-like virtual file system framework component that enables such
solutions completely within the user address space, for Red Storm at
least, called SYSIO. As well, the SYSIO solutions to some of the unique
scalability problems within the file system that are inherent to such
machines, such as boot-time access to volumes and judicious use of the
wire during path traversal will be described.
Lee Ward is a principal member of technical staff in the scalable systems computing department at Sandia National Laboratories. As an inveterate student of operating systems and file systems, his interests have provided the opportunity to make contributions in high performance, parallel file systems, IO libraries, hierarchical storage management and compute cluster integration/management systems.
Seminar Info Contact:
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