Parallel Input output is an essential component of modern high-performance computing
(HPC). Obtaining good I/O performance for a broad range of applications on diverse HPC …

We present an auto-tuning system for optimizing I/O performance of HDF5 applications and
demonstrate its value across platforms, applications, and at scale. The system uses a …

Parallel I/O performance depends highly on the interactions among multiple layers of the
parallel I/O stack. The most common layers include high-level I/O libraries, MPI-IO …

The HPC community is preparing to deploy petaflop-scale computing platforms that may
include hundreds of thousands to millions of computational cores over the next 3 years …

Various layers of the parallel I/O subsystem offer tunable parameters for improving I/O
performance on large-scale computers. However, searching through a large parameter …

The contemporary parallel I/O software stack is complex due to a large number of
configurations for tuning I/O performance. Without a proper configuration, I/O becomes a …

We address the difficulty involved in obtaining meaningful measurements of I/O performance
in HPC applications, as well as the further challenge of understanding the causes of I/O …

Real-world large-scale applications expose more and more pressures to storage services of
modern supercomputers. Supercomputers have been introducing new storage devices and …

We present a comprehensive survey on parallel I/O in the high-performance computing
(HPC) context. This is an important field for HPC because of the historic gap between …

Gain Critical Insight into the Parallel I/O Ecosystem Parallel I/O is an integral component of
modern high performance computing (HPC), especially in storing and processing very large …