iobuf Overview
The following information is available by runningmodule help iobuf
The modulefile defines the system paths and variables for the product, iobuf IOBUF 2.0.2: ============ Purpose: -------- IOBUF is an I/O buffering library that can reduce the I/O wait time for programs that read or write large files sequentially. IOBUF intercepts I/O system calls such as read and open and adds a layer of buffering, thus improving program performance by enabling asynchronous prefetching and caching of file data. Bugs Closed with this release: ------------------------------ BUG 771578 - iobuf module doesn't trap fwrite and fails when combined with posix BUG 772207 - Program not working when iobuf is being used Operating System Dependencies: ------------------------------ The IOBUF release is supported on Cray XT and XE systems running the CLE 3.1 or later operating systems. Documentation: -------------- See the man page: man iobuf Installation Instructions: -------------------------- export CRAY_INSTALL_DEFAULT=1 rpm -ivh iobuf-2.0.2-1.x86_64.rpm unset CRAY_INSTALL_DEFAULT =========================================================== To re-display iobuf/2.0.2 release information, type: less /opt/cray/iobuf/2.0.2/release_info ===========================================================
Builds
TITAN
- 2.0.5
- 2.0.6
- 2.0.8