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Department of Informatics Technische Universität München Informatik X: Rechnertechnik und Rechnerorganisation / Parallelrechnerarchitektur Prof. Dr. Arndt Bode , Prof. Dr. Hans Michael Gerndt |
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| Projects | Staff | Publications | Student´s
Information |
| Projects |
BALANCE (Balanced High Availability in Layered and Distributed Computing Elements) |
INFINIBAND-Cluster (High Performance Cluster COmputing with INFINIBAND Interconnect) |
RAMiS (Reconfigurable Architectures, Microprocessors and System Design) |
DiME (Data Locality Iterative Methods |
ABB-POLOPT (Electric Field Simulation) |
DAB (Digital Audio Broadcast) |
CARACAS (Automatic Text Recognition) |
JMic (JAVA based Microcode Simulator) |
Deutsches Museum (Cooperation Project) |
| Projects
(more detailed description) |
The usual solution to increase the availability of a system is redundancy at system level, which means adding spare computers being able to replace each other in the case of a failure. But this solution suffers from two severe drawbacksA solution to both problems is structural redundancy at the peripheral bus level. A requirement for redundancy at this level is the possibility to remove and insert adapter cards from and into the bus during runtime, a process widely known as hot-swapping. |
Due to their excellent cost/performance ratio, clusters of PCs can be attractive high performance computing (HPC) platforms. However, their limited communication performance over standard LANs is restrictive for parallel applications. It is the goal of the INFINIBAND-Cluster project at LRR-TUM to overcome this performance gap by adopting the INFINIBAND interconnect technology. With INFINBAND-based distributed shared memory (DSM) and high performance communication characteristics (throughput in the range of hundreds of Mbytes/s and latencies in the range of a few microseconds), a cluster built on top of this interconnection technology is regarded as well suited for HPC. |
The Microprocessor and Systems Design Group is studying modern microprocessor architectures and organizations. Especially, design concepts for parallel processor architectures (VLIW, superscalar and superpipelined architectures) together with the compilers and code generation techniques needed to effectively exploit the inherent parallelsm have been considered in the past. The studies include also alternative computer architectures, java processor designs and microcontrollers for embedded systems. |
In many modern computers the speed at which arithmetic operations may be performed is far greater then the memory access times. A common approach to 'hiding' this problem is the use of fast access caches, however such configurations have direct consequences for the design and implementation of numerical algorithms. Only through the use of data locality is it possible to make efficient use of the cache, but many algorithms do not exhibit this feature and therefore only reach a small percentage of the possible performance. In this project we shall investigate how to efficiently implement adaptive methods for the solution of partial differential equations so as to make the best use of cache architectures. |
Numerical simulation of electrostatic and electromagnetic fields. |
DAB is a digital technology offering considerable advantages over today's FM radio, both to listeners and broadcasters. |
| Within
the
scope of the seminar "Geschichte
der Rechnerarchitektur" (History of Computer Architecture), there
is a close cooperation between our group and the Deutsches Museum
München. In the seminar, students have access to numerous
computing systems which were an important milestone in the history of
computing. Whenever possible, they can write and run their own small
programs on those machines and demonstrate it to fellow students in the
scope of the seminar. Examples are the Dehomag D11
and the Zuse Z3
as well as the famous Enigma cipher machine.
In
order to extend the museum's computer science department, LRR-TUM
has donated two early parallel computers (namely the Intel IPSC2 and
IPSC860) to Deutsches Museum München.
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| Publications |
| Student´s
Information (in German) |
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