Browsing by Subject "custom computing"

Now showing 1 - 3 of 3

Access status: Open Access ,
Computation acceleration on SGI RASC: FPGA based reconfigurable computing hardware
(Wydawnictwa AGH, 2008) Jamro, Ernest; Janiszewski, Marcin; Machaczek, Krzysztof; Russek, Paweł; Wiatr, Kazimierz; Wielgosz, Maciej
In this paper a novel method of computation using FPGA technology is presented. In several cases this method provides a calculations speedup with respcct to the General Purpose Processors (GPP). The main concept of this approach is based on such a design of computing hardware architecture to fit algorithm dataflow and best utilize well known computing techniques as pipelining and parallelism. Configurable hardware is used as a implementation platform for custom designed hardware. Paper will present implementation results of algorithms those are used in such areas as cryptography, data analysis and scientific computation. The other promising areas of new technology utilization will also be mentioned, bioinformatics for instance. Mentioned algorithms were designed, tested and implemented on SGI RASC platform. RASC module is a part of Cyfronet's SGI Altix 4700 SMP system. We will also present RASC modern architecture. In principle it consists of FPGA chips and very fast, 128-bit wide local memory. Design tools avaliable for designers will also be presented.
Access status: Open Access ,
Sprzętowa implementacja części wielomianowej funkcji orbitalnej na potrzeby obliczeń kwantowo-chemicznych
(Wydawnictwa AGH, 2010) Wielgosz, Maciej; Jamro, Ernest; Russek, Paweł; Wiatr, Kazimierz
The hardware acceleration module for generating the polynomial part of the orbital function in quantum chemistry calculation is presented. Both implementation and acceleration results are provided in the paper along with the comparison tests (against Itanium 2 processor). The implementation described can be regarded as a milestone on the way towards introducing an efficient hardware implementation of the exchange-correlation potential. The FPGA-based SGI RASC accelerator was used to offload a processor in the most exhausting computations of the SCF routine. The paper also covers issues regarding an integration of the PP (polynomial part) module with the rest of the computational system.
Access status: Open Access ,
Using standard hardware accelerators to decrease computation times in scientific applications
(Wydawnictwa AGH, 2009) Kuna, Dawid; Jamro, Ernest; Russek, Paweł; Wiatr, Kazimierz
Nowadays, general-purpose processors are being used in scientific computing. However, when high computational throughput is needed, it's worth to think it over if dedicated hardware solutions would be more efficient, either in terms of performance (or performance to price ratio), or in terms of power efficiency, or both. This paper describes them briefly and compares to contemporary general-purpose processors' architecture.