| Abstract
|
<p>Today computer architectures are … <p>Today computer architectures are shifting from single core to manycores due to several reasons such as performance demands, power and heat limitations. However, shifting to manycores results in additional complexities, especially with regard to efficient development of applications. Hence there is a need to raise the abstraction level of development techniques for the manycores while exposing the inherent parallelism in the applications. One promising class of programming languages is dataflow languages and in this paper we evaluate and optimize the code generation for one such language, CAL. We have also developed a communication library to support the inter-core communication.The code generation can target multiple architectures, but the results presented in this paper is focused on Adapteva's many core architecture Epiphany.We use the two-dimensional inverse discrete cosine transform (2D-IDCT) as our benchmark and compare our code generation from CAL with a hand-written implementation developed in C. Several optimizations in the code generation as well as in the communication library are described, and we have observed that the most critical optimization is reducing the number of external memory accesses. Combining all optimizations we have been able to reduce the difference in execution time between auto-generated and hand-written implementations from a factor of 4.3x down to a factor of only 1.3x.</p>x down to a factor of only 1.3x.</p>
|
| Author
|
Süleyman Savas +
, Essayas Gebrewahid +
, Zain Ul-Abdin +
, Tomas Nordström +
, Mingkun Yang +
|
| Conference
|
The 20th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications
|
| Diva
|
http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:725348
|
| Projects
|
HiPEC project +
|
| PublicationType
|
Conference Paper +
|
| Title
|
An Evaluation of Code Generation of Dataflow Languages on Manycore Architectures +
|
| Year
|
2014 +
|
| Has queryThis property is a special property in this wiki.
|
Publications:An Evaluation of Code Generation of Dataflow Languages on Manycore Architectures +
, Publications:An Evaluation of Code Generation of Dataflow Languages on Manycore Architectures +
, Publications:An Evaluation of Code Generation of Dataflow Languages on Manycore Architectures +
, Publications:An Evaluation of Code Generation of Dataflow Languages on Manycore Architectures +
, Publications:An Evaluation of Code Generation of Dataflow Languages on Manycore Architectures +
, Publications:An Evaluation of Code Generation of Dataflow Languages on Manycore Architectures +
, Publications:An Evaluation of Code Generation of Dataflow Languages on Manycore Architectures +
, Publications:An Evaluation of Code Generation of Dataflow Languages on Manycore Architectures +
, Publications:An Evaluation of Code Generation of Dataflow Languages on Manycore Architectures +
, Publications:An Evaluation of Code Generation of Dataflow Languages on Manycore Architectures +
|
| Categories |
Publication +
|
| Modification dateThis property is a special property in this wiki.
|
9 September 2014 05:14:27 +
|
