Visualization of PVFS2 Server Activities

Thomas Ludwig, Stephan Krempel, Julian Kunkel, Frank Panse, Dulip Withanage


ABSTRACT

With parallel I/O we are faced with the situation that we do not have
appropriate tools to get an insight into the I/O server behavior
depending on the I/O calls in a parallel program. We present an
approach that enhances a trace-based tool in a way to show us client
and server behavior in relation to each other. We focus on the
parallel file systems PVFS2 and the MPI tool Jumpshot.