Welcome to the PVFS Project
PVFS brings state-of-the-art parallel I/O concepts to
production parallel systems. It is designed to scale to petabytes
of storage and provide access rates at 100s of GB/s.
Its main features are:
Performance
PVFS is designed to provide high performance for parallel applications,
where concurrent, large IO and many file accesses are common. PVFS provides
dynamic distribution of IO and metadata, avoiding single points of contention,
and allowing for scaling to high-end terascale and petascale systems.
Reliability
PVFS relaxes the POSIX consistency semantics where necessary to improve
on stability and performance. Cluster file systems that enforce
POSIX consistency require stateful clients with locking subsystems, reducing
the stability of the system in the face of failures. These systems
can be difficult to maintain due to overhead of lock management.
PVFS clients
are stateless allowing for effortless failure recovery and easy
integration with industry standard high-availability systems.
Read more on the PVFS
consistency model and
setting up PVFS for
high-availability.
Optimized MPI-IO support
PVFS is designed to support a number of access models, from collective
I/O to independent I/O as well as non-contiguous and structured access patterns.
PVFS provides an object-based, stateless client interface,
leading to optimizations for metadata operations within MPI-IO.
See the ROMIO site for further
information.
Hardware Independence
PVFS operates on a wide variety of systems, including IA32, IA64, Opteron,
PowerPC, Alpha, and MIPS. It is easily integrated into local or shared storage configurations, and provides support for high-end networking fabrics,
such as Infiniband or Myrinet.
Painless Deployment
PVFS was designed to be easy to deploy and manage.
It builds out-of-the-box
on a wide-variety of Linux distributions, and has only
a few required dependencies.
PVFS builds and runs directly on your Linux installation,
it does not require kernel patches or specific kernel versions.
Research Platform
PVFS is developed by a
multi-institution team
of parallel I/O, networking and storage experts. It embodies
the expertise of designers who have worked for over a decade
in the field of parallel I/O. PVFS continues to be used as
a platform for active research in the parallel I/O field, the
code is designed to be easy to augment for research purposes.
Review the latest papers
on research using PVFS.
See our documentation page
for further information about PVFS.
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PVFS News
PVFS Release: 2.8.2
more..
Thu, Feb 4 | PVFS Release: 2.8.1
more..
Tue, Mar 3 | PVFS Release: 2.8.0
more..
Thu, Feb 12 | PVFS being deployed on supercomputer at Argonne!
more..
Wed, Feb 4 |
News Archive
Quick Links
-
FAQ
- Frequently Asked Questions.
- Fisheye
- Browse the source code.
- Tinderbox
- Continuous Integration Testing. View the latest test runs and results.
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