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Running air pollution models on massively parallel machines
ELSEVIER Parallel Computing 21 (1995) 971-991 PARALLEL COMPUTING Practical aspects and experiences Running air pollution models on massively ...
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Running air pollution models on the connection machine
Running air pollution models on the connection machine .... in the future, there are plans to optimize the whole model for runs on massively parallel computers.
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tiple data (MIMD) machines ranging from a cluster of workstations to a 512 node Intel. Paragon. ... air quality model on a massively parallel architecture. ...... model run requires less than 7 minutes on the Intel Paragon with 128 nodes. This.
[ 1996_Dabdub-Seinfeld_PC.pdf - Read/Download File

Modelling Photochemical Pollution using Parallel and Distributed
photochemical air pollution (smog) in industrialised cities. However, ... Parallel Programs, Shared, Clustered and distributed machines. 1. .... of our major concerns was cost we chose to parallelise the model and run it on a number of ... The generation of ozone contours requires massive computing capacity, but because.
[ 980239a8738bcb29b8ec660ff6e51691a168.pdf - Read/Download File

Parallel runs of a large air pollution model on a grid of Sun computers
have to be solved before starting to run operationally an air pollution model. .... Nx, Ny and Nz are the numbers of the grid-points along the grid-lines parallel to the Ox, ..... The programming for shared memory machines is relatively easy. ...... [ 38] Z. Zlatev, Massive data set issues in air pollution modelling, in: J. Abello, P.M.  ...
[ imm3151.pdf - Read/Download File

A communication library for the parallelization of air quality models
Keywords: Air quality models; Structured grids; Parallel computing. 1. Introduction .... mode while the production runs (long simulations) are done in parallel.
[ ATMENV2002.pdf - Read/Download File

Parallel Implementation of the Regional Spectral Atmospheric Model
The model is designed to run on different computer systems, including single processor ... massively parallel computers, and massively parallel vector processor machines. The ... conducted on the IBM SP3 machine, and later adapted to the Earth Simulator machine. ..... not in any way assure the quality of the product itself.
[ cec_report1.pdf - Read/Download File

simulation tool to model the dispersion of traffic-induced air pollution at the urban ... In AIRCITY, the challenge is to run a ... (Parallel SPRAY a.k.a. PSPRAY) and (2 ) the decision to use a massively parallel architecture. ... CEA-DAM operates the largest computing Centre in Europe, with parallel machines ranging from a few ...
[ H15-184.pdf - Read/Download File

A large-scale atmospheric chemistry-transport model for massively
Jul 19, 2015 ... massively parallel architectures. Alexis Praga. To cite this version: Alexis Praga. A large-scale atmospheric chemistry-transport model for massively parallel ar- .... To run efficiently on .... Cela permet de prédire l'indice d'UV ou les pics de pollution. ... La premi`ere fut l'av`enement des machines vectorielles,.
[ manuscript_praga.pdf - Read/Download File

rsl: a parallel runtime system library for regional atmospheric models
RSL is a parallel runtime system library developed at Argonne National ... of a model source code to run e ciently on diverse computer architectures. ..... ication, air quality research, and basic atmospheric research. ... RSL was developed in the course of producing the Massively Parallel ..... of machine time and assistance.
[ P663.pdf - Read/Download File

MM90: A Scalable Parallel Implementation of the Penn State/NCAR
May 19, 1997 ... it allows the aggregate memory available on MPPs to be used to run very ... forecasting, regional climate prediction, air-quality, and storm research.1. The Massively Parallel Mesoscale Model (MPMM) 2] 8] was developed .... each direction) per processor pair per stencil exchange, a bene t on machines.
[ P659.pdf - Read/Download File

A Case for NOW (Networks of Workstations)
Dec 9, 1994 ... bigger than will feasibly run on a workstation. ... massively parallel processor interconnects will allow networks of workstations (NOWs). to replace the entire ..... has been used for detailed air pollution studies. A model ... Table 4 shows the results of this model for several machine configurations. The trans-.
[ CaseForNOW.pdf - Read/Download File

Optimizing an MPI Weather Forecasting Model via Processor
Therefore, to run these models in a feasible amount of time, they are usually ... migrate work across the processors of a parallel machine. By leveraging this .... mode at CPTEC to forecast air quality for the entire South America (see ...... Research and Development: Applications of Massively Parallel Systems, vol. 52, no.
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Strategies for Parallelizing a Navier-Stokes Code - LIGO - Caltech
architecture parallel machine. ... present measurements of communication times for two parallel machines, the Intel Touchstone ... sors, while achieving good quality load balancing. ... Combustion models for hydrogen/air may have ..... complex geometry, can be expected to run on a massively parallel machine with high effi-.
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Airshed Pollution Modeling: A Case Study in Application - CiteSeerX
The Airshed air pollution modeling application is an “Urban Re- gional Model” .... senting the execution times are nearly parallel for the 3 machines, implying that the ..... tion range from ad hoc ones like running multiple programs inde- pendently and ..... on the Frontiers of Massively Parallel Computation (1995). [13] HIGH ...
[ 140.pdf - Read/Download File

An approach to enhance pnetCDF performance in environmental
Apr 8, 2015 ... The software package pnetCDF (parallel network Com- mon Data Form) ... (Byun and Schere, 2006) is a regional air quality model which is widely used .... three time steps and was run on two different machines. The following two ... massive parallel-distributed file system that has the ability to distribute the ...
[ gmd-8-1033-2015.pdf - Read/Download File

hadoop-based distributed system for online prediction of air
Nov 25, 2015 ... Storing ever-increasing data of air pollution on a single machine and ... International Conference on Sensors & Models in Remote Sensing & Photogrammetry, 23–25 Nov ... that using parallel SVMs was much faster than training a single SVM .... To make LaSVM algorithm has a good scalability and run.
[ isprsarchives-XL-1-W5-215-2015.pdf - Read/Download File

Parallel computing with IPython: an application to air polution
for code to be run on each engine. Handles ... Massive refactoring of the IPython core to a two process model ... I also work closely with a team of researchers (led by Dr. Mike Hannigan) doing air pollution modeling, .... IPython 0.11 will help this issue, as will time: soon everyone will have multicore machines and be writing.
[ josh_hemann_airpollution_notes.pdf - Read/Download File

Collaborations with Industry on Parallel Computing
Goals: At present, software developed for one vendor's massively parallel computer system is not portable, that is, able to be run on other vendors' computers. ... machines. ... Lithology Characterization for Remediation of Underground Pollution ... Goals: Develop three-dimensional modeling software to cut the costs of ...
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Migrating Large-Scale Air Traffic Modeling to the Cloud
Feb 27, 2015 ... of massive flight data, and its optimization involves computationally expensive ... MapReduce, a big data processing model, to facilitate air traffic flow ... As a result, the optimization is automatically scheduled to run in parallel tasks. ..... In a Hadoop cluster, the master machine, also known as the name node ...
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