A lightweight I/O characterization tool that transparently captures I/O access pattern information from HPC applications

Area: Development tools

CASS member: STEP

Description

Darshan is a lightweight I/O characterization tool designed for HPC applications. It captures a concise summary of I/O behavior for every job it instruments, detailing application usage of various layers of the I/O stack. The data captured by Darshan is typically used to help guide understanding and optimization of application I/O behavior.

Target audience

Darshan is intended for HPC users, application and library developers, facilities staff, and other I/O research practitioners.

Additional resources

Impact stories