scholarly journals Scaling and performance of a 3-D radiation hydrodynamics code on message-passing parallel computers: final report

1999 ◽  
Author(s):  
J Hayes ◽  
M Norman
Keyword(s):  
Message Passing ◽  
Parallel Computers ◽  
Final Report ◽  
Radiation Hydrodynamics ◽  
And Performance

scholarly journals Teaching tools for parallel processing

2005 ◽  
Vol 18 (2) ◽  
pp. 219-224
Author(s):  
Emina Milovanovic ◽  
Natalija Stojanovic
Keyword(s):  
Parallel Computing ◽  
Parallel Processing ◽  
Shared Memory ◽  
Message Passing ◽  
Distributed Memory ◽  
Cost Effective ◽  
Parallel Computers ◽  
Free Software ◽  
Teaching Tools ◽  
Network Of Workstations

Because many universities lack the funds to purchase expensive parallel computers, cost effective alternatives are needed to teach students about parallel processing. Free software is available to support the three major paradigms of parallel computing. Parallaxis is a sophisticated SIMD simulator which runs on a variety of platforms.jBACI shared memory simulator supports the MIMD model of computing with a common shared memory. PVM and MPI allow students to treat a network of workstations as a message passing MIMD multicomputer with distributed memory. Each of this software tools can be used in a variety of courses to give students experience with parallel algorithms.

scholarly journals Practising inspired leadership: the use of applied theatre "prophetical" in the Executive Leadership Development Program for Queensland Health

2009 ◽  
Vol 33 (3) ◽  
pp. 377 ◽  
Author(s):  
Brad C Haseman ◽  
Meagan P Crethar ◽  
Jan N Phillips ◽  
Paul J Stafford
Keyword(s):  
Leadership Development ◽  
Performance Management ◽  
Development Program ◽  
Reform Process ◽  
Final Report ◽  
Performance Management Systems ◽  
Queensland Health ◽  
Major Reform ◽  
Independent Review ◽  
And Performance

QUEENSLAND HEALTH as an organisation has been under a great deal of pressure in recent times. On 26 April 2005, the Queensland Government announced an independent review of Queensland Health?s administrative, workforce and performance management systems. The review was established in response to public concern over the safety and quality of the public health system following events that took place at Bundaberg Hospital, particularly the appointment and practices of Dr Jayant Patel. Associated with the Patel case were issues of bullying and intimidatory behaviour at the workplace. In response to the recommendations of the review, Queensland Health embarked upon a major reform program. One of the strategies for driving reform highlighted by the Queensland Health Systems Review final report, September 2005 was leadership development. Strong leadership was identified as vitally important to both drive the reform process and improve workplace culture.

IMD: A Software Package for Molecular Dynamics Studies on Parallel Computers

1997 ◽  
Vol 08 (05) ◽  
pp. 1131-1140 ◽  
Author(s):  
J. Stadler ◽  
R. Mikulla ◽  
H.-R. Trebin
Keyword(s):  
Molecular Dynamics ◽  
Software Package ◽  
Large Scale ◽  
Md Simulation ◽  
Parallel Computers ◽  
Massively Parallel ◽  
Massively Parallel Computers ◽  
Communication Scheme ◽  
And Performance ◽  
Dynamics Simulations

We report on implementation and performance of the program IMD, designed for short range molecular dynamics simulations on massively parallel computers. After a short explanation of the cell-based algorithm, its extension to parallel computers as well as two variants of the communication scheme are discussed. We provide performance numbers for simulations of different sizes and compare them with values found in the literature. Finally we describe two applications, namely a very large scale simulation with more than 1.23×109 atoms, to our knowledge the largest published MD simulation up to this day and a simulation of a crack propagating in a two-dimensional quasicrystal.

scholarly journals A parallelization scheme to simulate reactive transport in the subsurface environment with OGS#IPhreeqc

2015 ◽  
Vol 8 (3) ◽  
pp. 2369-2402
Author(s):  
W. He ◽  
C. Beyer ◽  
J. H. Fleckenstein ◽  
E. Jang ◽  
O. Kolditz ◽  
...  
Keyword(s):  
Message Passing ◽  
Reactive Transport ◽  
Message Passing Interface ◽  
Transport Processes ◽  
Coupled Processes ◽  
Scientific Software ◽  
Geochemical Reactions ◽  
Optimized Allocation ◽  
And Performance ◽  
The One

Abstract. This technical paper presents an efficient and performance-oriented method to model reactive mass transport processes in environmental and geotechnical subsurface systems. The open source scientific software packages OpenGeoSys and IPhreeqc have been coupled, to combine their individual strengths and features to simulate thermo-hydro-mechanical-chemical coupled processes in porous and fractured media with simultaneous consideration of aqueous geochemical reactions. Furthermore, a flexible parallelization scheme using MPI (Message Passing Interface) grouping techniques has been implemented, which allows an optimized allocation of computer resources for the node-wise calculation of chemical reactions on the one hand, and the underlying processes such as for groundwater flow or solute transport on the other hand. The coupling interface and parallelization scheme have been tested and verified in terms of precision and performance.

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