gled
Matev¾ Tadel: Gled - an Implementation of a Hierarchic Server-Client Model
Description of core functionality of Gled and basic ideas of the
implementation.
Available versions
Abstract
Gled is an implementation of a hierarchic server--client model
written in C++, having an outside form of an object
oriented framework. Master server exposes its object space to its
first-level clients which in turn provide mirroring facilities to
second-level clients and also export their own object spaces. Each
client therefore plays a role of a client, a proxy and a server.
Infrastructure for propagation and broadcasting of method invocation
requests is provided and is general enough to allow for an efficient
access control. Synchronization of object spaces is achieved via
streaming of object graphs and a time-ordered delivery of method
invocation requests.
Objects can acquire their own threads to perform different tasks
such as computation, data acquisition & analysis or dynamic
visualization. The obtained results can be pushed to other computing
nodes or storage devices. As threads are spawned and controlled
by standard method invocation requests, schedulers & job control
mechanisms spawning across a whole Gled cluster can easily be
implemented.
On viewer level, Gled features automatically generated GUI widgets
and a sophisticated 3D rendering infrastructure.
