TY  - JOUR
A1  - Ciaccio, Giuseppe
A1  - Ehlert, Marco
A1  - Schnor, Bettina
T1  - Exploiting gigabit ethernet capacity for cluster applications
N2  - In this paper we report about the recently completed porting of GAMMA to the Netgear GA621 Gigabit Ethernet adapter, and provide a comparison among GAMMA, MPI/GAMMA, TCP/IP, and MPICH/TCP, based on the Netgear GA621 and the older Netgear GA620 network adapters and using different device drivers, in a Gigabit Ethernet cluster of PCs running Linux 2.4. GAMMA (the Genoa Active Message MAchine) is a lightweight messaging system based on an Active Message-like paradigm, originally designed for efficient exploitation of Fast Ethernet interconnects. The comparison includes simple latency/hspace{0pt}bandwidth evaluation of the messaging systems on both adapters, as well as performance comparisons based on the NAS NPB and an end-user fluid dynamics application called Modular Ocean Model (MOM). The analysis of results provides useful hints concerning the efficient use of Gigabit Ethernet with clusters of PCs. In particular, it emerges that GAMMA on the GA621 adapter, with a combination of low end-to-end latency (8.5 $mu$s) and high throughput (118.4 MByte/s), provides a performing, cost-effective alternative to proprietary high-speed networks, e.g.~Myrinet, for a wide range of cluster computing applications.
Y1  - 2002
SN  - 0-7695-1591-6
ER  - 
TY  - JOUR
A1  - Lanfermann, Gerd
A1  - Schnor, Bettina
A1  - Seidel, Edward
T1  - Characterizing Grids
N2  - We present a new data model approach to describe the various objects that either represent the Grid infrastructure or make use of it. The data model is based on the experiences and experiments conducted in heterogeneous Grid environments. While very sophisticated data models exist to describe and characterize e.g. compute capacities or web services, we will show that a general description, which combines {em all} of these aspects, is needed to give an adequate representation of objects on a Grid. The Grid Object Description Language (GODsL)} is a generic and extensible approach to unify the various aspects that an object on a Grid can have. GODsL provides the content for the XML based communication in Grid migration scenarios, carried out in the GridLab project. We describe the data model architecture on a general level and focus on the Grid application scenarios.
Y1  - 2003
SN  - 1-4020-7418-2
ER  - 
TY  - JOUR
A1  - Feider, Henryk
A1  - Schnor, Bettina
A1  - Dramlitsch, Thomas
T1  - Gridmake : the missing link for compilation in the Grid
N2  - In order to take full advantage of Grid environments, applications need to be able to run on various heterogeneous platforms. Distributed runs across several clusters or supercomputers for example, require matching binaries at each site. Thus, at some stage, each Grid enabled application needs to be recompiled for every platform. Up to now, creating matching binaries on different platforms was a manual, sequential, slow, and very error-prone process. Developers had to log into each machine, transfer source code, check consistency and recompile if necessary. This cumbersome procedure is surely one reason for the (still existing) lack of production Grid computing. Gridmake, a tool to automate and speed up this procedure is presented in this paper.
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Schneidenbach, Lars
A1  - Schnor, Bettina
A1  - Petri, Stefan
T1  - Architecture and Implementation of the Socket Interface on Top of GAMMA
Y1  - 2003
SN  - 0-7695-2037-5
ER  - 
TY  - JOUR
A1  - Scheffler, Thomas
A1  - Schnor, Bettina
T1  - Securing Next generation Mobile Networks
Y1  - 2004
SN  - 0-86341-388-9
ER  - 
TY  - JOUR
A1  - Friedrich, Sven
A1  - Krahmer, Sebastian
A1  - Schneidenbach, Lars
A1  - Schnor, Bettina
T1  - Loaded : Server Load Balancing for IPv6
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Vandenhouten, Ralf
A1  - Behrens, Thomas
A1  - Schnor, Bettina
T1  - Entwicklung eines Gatewaysystems für telematikbasiertes Gerätemonitoring
Y1  - 2004
SN  - 0949-8214
ER  - 
TY  - BOOK
A1  - Feider, Henryk
A1  - Schnor, Bettina
T1  - PCG-Agreement Dokument
T3  - Technischer Bericht
Y1  - 2004
SN  - 0946-7580
PB  - Universität Potsdam, Institut für Informatik
CY  - Potsdam
ER  - 
TY  - BOOK
A1  - Mihahn, Michael
A1  - Schnor, Bettina
T1  - Fault-Tolerant Grid Peer Services
T3  - Technischer Bericht
Y1  - 2004
SN  - 0946-7580
PB  - Universität Potsdam, Institut für Informatik
CY  - Potsdam
ER  - 
TY  - BOOK
A1  - Schnor, Bettina
T1  - Seminarband: Sensornetze
T3  - Technischer Bericht
Y1  - 2004
SN  - 0946-7580
PB  - Universität Potsdam, Institut für Informatik
CY  - Potsdam
ER  -