Cplant (tm) is a collection of code designed with an emphasis on scalability, to provide a full-featured environment for cluster computing on commodity hardware components. Cplant (tm) system software provides a scalable message passing layer, scalable runtime utilities, and scalable debugging support. It is distributed as source code, which can be built for a specific hardware configuration. This consists of operating system code (in the form of Linux modules and driver), application support libraries and compiler tools, an MPI port, user-level runtime utilities, support for application debugging, and scripts for configuring and installing the built software.
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.
Beowulf includes an enhanced Linux kernel, libraries, and utilities specifically designed for clustering. Beowulf provides a single system image through BProc, the Beowulf cluster process management kernel enhancement. BProc makes the processes running on cluster "Computation Node" computers visible and manageable on a front-end "Master Node". Processes start on the front-end node and migrate to a cluster node. Process parent-child relationships and UNIX job control are maintained with migrated tasks. Cluster slave nodes are not required to contain resident applications. Their hard disks are used for application data and cache. This approach eliminates version skew common with previous generation clusters.
Whoson (WHO iS ONline) is a proposed Internet protocol that allows Internet server programs know if a particular (dynamically allocated) IP address is currently allocated to a known (trusted) user and, optionally, the identity of the said user. The protocol could be used by an SMTP Message Transfer System in conjunction with anti-spam-relaying filters to implement a scheme similar to the one described here to allow roaming customers use their "home" SMTP server to submit email while connected from a "foreign" network.
Sparse is a semantic parser of source files. It's neither a compiler (although it could be used as a front-end for one) nor a preprocessor (although it contains a preprocessing phase). It is meant to be a small, simple, easy to use library. Its function is to create a semantic parse tree for some arbitrary user for further analysis. It's not a tokenizer, nor is it a generic context-free parser. Context (semantics) is what it's all about: figuring out not just what the grouping of tokens are, but what the types are that the grouping implies.