Experiences and results multitasking a hydrodynamics code on global and local memory machines [electronic resource].
- Los Alamos, N.M. : Los Alamos National Laboratory, 1987.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 16 : digital, PDF file
- Additional Creators:
- Los Alamos National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- A one-dimensional, time-dependent Lagrangian hydrodynamics code using a Godunov solution method has been multitasked for the Cray X-MP/48, the Intel iPSC hypercube, the Alliant FX series and the IBM RP3 computers. Actual multitasking results have been obtained for the Cray, Intel and Alliant computers and simulated results were obtained for the Cray and RP3 machines. The differences in the methods required to multitask on each of the machines is discussed. Results are presented for a sample problem involving a shock wave moving down a channel. Comparisons are made between theoretical speedups, predicted by Amdahl's law, and the actual speedups obtained. The problems of debugging on the different machines are also described.
- Report Numbers:
- E 1.99:la-ur-86-4356
E 1.99: conf-870831-1
- Other Subject(s):
- Published through SciTech Connect.
International conference on parallel processing, St. Charles, IL, USA, 17 Aug 1987.
- Funding Information:
View MARC record | catkey: 14360683