Software Map

translucency is a loadable kernel module for Linux that virtually merges two directories, making it possible to overwrite files on read-only media and compile projects (such as the Linux kernel) with different options without copying sources each time. No user-space tools have to be changed. The process is also known as inheriting (ifs), stacking, translucency (tfs), loopback (lofs), and overlay (ovlfs).

MantaRay is a distributed, peer-to-peer, server-less communication and messaging solution for Java (JMS), C++, and .NET applications. It integrates with JBoss, WebLogic, and WebSphere and offers guaranteed delivery, security, and transactions. It supports the TCP, SSL, and HTTP protocols.

Tentakel is a program that executes the same command on many hosts in parallel using SSH or other remote methods. It is designed to be easily extendable. The output of the remote command can be controlled by means of format strings.

PlumpOS is a bootable openMosix node on a CD. Pop the CD into a 486+ computer and you have an instant openMosix node. It supports loading 3rd-party packages and adding custom kernels. It takes up very few resources. It was originally a clone of clump/os, but has evolved into something that doesn't resemble it much anymore.

Genders is a static cluster configuration database
used for cluster configuration management. It is
used by a variety of tools and scripts for
management of large clusters. The genders database
is accessed by every node in a cluster, either
through a networked file system or by replicating
the database on every node of the cluster. The
database describes the layout and configuration of
the cluster so that tools and scripts can sense
the variations of cluster nodes. By abstracting
this information into a plain text file, it
becomes possible to change the configuration of a
cluster by modifying only one file.

Omnitty is a curses-based program that allows you to log
into several machines simultaneously and interact with them,
selectively directing input to individual machines or groups of
selected machines. You can run both line-oriented and
screen-oriented in the target machines, because it has built-
in terminal emulation capability. When the window is large
enough, Omnitty also displays a "summary area" for each
machine, in which it shows what the latest output from the
machine was, so you can have an idea of what is going on in
each machine.

ConMan is a serial console management program designed to support a large number of console devices and simultaneous users. It supports local serial devices, remote terminal servers (via the telnet protocol), IPMI Serial-Over-LAN (via FreeIPMI), Unix domain sockets, and external processes (e.g., using Expect to control connections over telnet, ssh, or IPMI Serial-Over-LAN). Its features include logging (and optionally timestamping) console device output to file, connecting to consoles in monitor (R/O) or interactive (R/W) mode, allowing clients to share or steal console write privileges, and broadcasting client output to multiple consoles.

mod_backhand is a load balancing module for Apache. It provides per-request HTTP redirection within a heterogeneous Apache server cluster. Each request is processed and run through a set of "candidacy functions" to determine which server is best suited to respond. The request is then proxied to that server. Facilities are in place to allow you to write your own dynamically loadable decision making algorithms. Everything about the request and the current availability of resources can be used in the decision-making process.

Autobuild is a package that processes output from building
software, primarily focused on packages using Autoconf and
Automake, and generates HTML summaries. The output
includes project name, version, build host types, build host
name, and indication of success or failure. The output is
indexed in many ways to simplify browsing.

chpox provides transparent checkpointing and
restarting of processes on Linux clusters. It was
originally designed for recovering tasks that have
a long execution time (i.e. numerical simulations)
in case of system crashes, power failures, etc. It
may work with openMosix, is SMP safe, does not
require program recompiling/relinking, and
supports virtual memory, regular open files,
pipes, Unix domain sockets, current directory, and
child processes.

MLPACK is a C++ machine learning library with an emphasis on scalability, speed, and ease-of-use. Its aim is to make machine learning possible for novice users by means of a simple, consistent API, while simultaneously exploiting C++ language features to provide maximum performance and maximum flexibility for expert users. It contains algorithms such as k-means, Gaussian mixture models, hidden Markov models, density estimation trees, kernel PCA, locality-sensitive hashing, sparse coding, linear regression and least-angle regression.

The Score cluster system software is designed for the high performance cluster environment without using the TCP/IP protocol stack. It features high performance communication, efficient computer management and single-system image, higher usability and availabily, and a seamless cluster environment.

ClusterNFS is a set of patches for the "Universal NFS Daemon" (UNFSD) to allow multiple clients to nfs mount the same root filesystem by providing "tagged" filenames. When a client requests the file "/path/filename", the ClusterNFS server checks for the existence of files of the form "/path/filename$$TAG=value$$". If such a file exists and the client has a matching value for KEY, this file is returned. If the client does not have a matching value or no such file exists, the file request proceeds as normal. Currently supported keys include HOST (hostname), IP (IP number), CLIENT (matches any nfs client) and CREATE (for "tagged" creation of files).