Parallelizing a very high resolution climate model using clusters of workstations with PVM and performance and load balance analyses

dc.contributor.author Wang, Hao
dc.contributor.author Prabhu, Gurpur
dc.contributor.author Takle, Eugene
dc.contributor.author Takle, Eugene
dc.contributor.department Aerospace Engineering
dc.contributor.department Ames National Laboratory
dc.contributor.department Computer Science
dc.contributor.department Agronomy
dc.contributor.department Geological and Atmospheric Sciences
dc.date 2018-02-18T17:56:50.000
dc.date.accessioned 2020-06-30T04:03:01Z
dc.date.available 2020-06-30T04:03:01Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 1998
dc.date.embargo 2017-07-26
dc.date.issued 1998
dc.description.abstract <p>Environment and climate change problems are very complicated, and their research and operational prediction heavily depend on powerful computer techniques. Even with today most powerful supercomputer, the climate and environmental models are still limited to very coarse resolution. In this paper, we report our recent effort in parallelizing our very-high-resolution numerical model systems. First, the mathematical equations, algorithms, and numerical schemes are designed and analyzed; then domain decomposition, data decomposition, and functional decomposition schemes are tested in our implementations on clusters of HP workstations and/or DEC Alpha stations with PVM; finally, the performance and load balance are analyzed. Shelterbelts cause significantly inhomogeneous computation distribution on the domain, therefore, common and easiest domain decomposition does not work well on our problem. Special care must be taken to treat computations around shelterbelts. With carefull design of algorithms, we found that cheap and still powerful workstations or PCs make it possible to run these models in clusters of workstations or PCs.</p>
dc.description.comments <p>This proceeding was published as Wang, H., G. Prabhu, and E. S. Takle, 1998: "Parallelizing a very high resolution climate model using clusters of workstations with PVM and performance and load balance analyses." <em>Proceedings of the International Conference on Parallel and Distributed Processing Techniques and Applications</em>, CSREA Press. pp. 1762-1765. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ge_at_conf/2/
dc.identifier.articleid 1001
dc.identifier.contextkey 10481671
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ge_at_conf/2
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/38022
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ge_at_conf/2/0-1998_Takle_ParallelizingVery_Permission_Request.pdf|||Fri Jan 14 22:09:45 UTC 2022
dc.source.bitstream archive/lib.dr.iastate.edu/ge_at_conf/2/1998_Takle_ParallelizingVery.pdf|||Fri Jan 14 22:09:47 UTC 2022
dc.subject.disciplines Climate
dc.subject.disciplines Databases and Information Systems
dc.subject.disciplines Environmental Monitoring
dc.subject.disciplines Theory and Algorithms
dc.subject.keywords cluster computing
dc.subject.keywords climate model
dc.subject.keywords scientific computing
dc.subject.keywords parallel and distributed algorithm
dc.subject.keywords load balance
dc.subject.keywords numerical analyses
dc.title Parallelizing a very high resolution climate model using clusters of workstations with PVM and performance and load balance analyses
dc.type article
dc.type.genre conference
dspace.entity.type Publication
relation.isAuthorOfPublication bd357d61-eb2d-4515-a8cc-e33cdaec689e
relation.isOrgUnitOfPublication 047b23ca-7bd7-4194-b084-c4181d33d95d
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
relation.isOrgUnitOfPublication f7be4eb9-d1d0-4081-859b-b15cee251456
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
relation.isOrgUnitOfPublication 29272786-4c4a-4d63-98d6-e7b6d6730c45
File
Original bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
1998_Takle_ParallelizingVery.pdf
Size:
215.21 KB
Format:
Adobe Portable Document Format
Description:
No Thumbnail Available
Name:
0-1998_Takle_ParallelizingVery_Permission_Request.pdf
Size:
68.03 KB
Format:
Adobe Portable Document Format
Description: