| 1. Identity statement | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | mtc-m16c.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Repository | lac.inpe.br/worcap/2004/10.05.16.12 |
| Last Update | 2004:10.05.19.12.18 (UTC) administrator |
| Metadata Repository | lac.inpe.br/worcap/2004/10.05.16.12.17 |
| Metadata Last Update | 2018:06.04.04.12.26 (UTC) administrator |
| Citation Key | CorrêaViPrStSoMe:2004:SoCMMa |
| Title | Solving the CMBR map making problem with a stochastic algorithm  |
| Format | CD-ROM; On-line. |
| Year | 2004 |
| Access Date | 2024, May 19 |
| Secondary Type | PRE CN |
| Number of Files | 1 |
| Size | 449 KiB |
| 2. Context | |
| Author | 1 Corrêa, Ricardo Varela 2 Villela, Thyrso 3 Preto, Airam Jonatas 4 Stephany, Stephan 5 Souza, Carlos Alexandre Wuensche de 6 Mejia, Jorge |
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JGGE 4 8JMKD3MGP5W/3C9JJ9D 5 8JMKD3MGP5W/3C9JGQK |
| Group | 1 DAS-INPE-MCT-BR 2 LAC-INPE-MCT-BR |
| Affiliation | 1 Aluno do curso de pós-graduação do INPE em Computação Aplicada (CAP) |
| Editor | Banon, Gerald Jean Francis Becceneri, José Carlos Macau, Elbert Einstein Nehrer Rosa, Reinaldo Roberto Silva, José Demisio Simões da |
| e-Mail Address | ricardo@cea.inpe.br |
| Conference Name | Workshop dos Cursos de Computação Aplicada do INPE, 4 (WORCAP). |
| Conference Location | São José dos Campos |
| Date | 20 e 21 out. 2004 |
| Publisher | Instituto Nacional de Pesquisas Espaciais |
| Publisher City | São José dos Campos |
| Book Title | Anais |
| Organization | Instituto Nacional de Pesquisas Espaciais |
| History (UTC) | 2004-10-05 19:12:18 :: rvcorrea -> worcap :: 2004-12-29 11:37:31 :: worcap -> rvcorrea :: 2009-05-31 01:51:46 :: rvcorrea -> administrator :: 2009-05-31 03:15:52 :: administrator -> rvcorrea :: 2011-02-16 13:43:09 :: rvcorrea -> hideki.carvalho@lac.inpe.br :: 2011-11-01 15:07:43 :: hideki.carvalho@lac.inpe.br -> worcap2011.comissaoprograma@gmail.com :: 2004 2011-12-15 14:31:45 :: worcap2011.comissaoprograma@gmail.com -> administrator :: 2004 2018-06-04 04:12:26 :: administrator -> banon :: 2004 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Keywords | cosmic microwave background radiation simulated annealing mpi high performance cluster computing |
| Abstract | O objetivo deste trabalho é o estudo da possibilidade de se utilizar algoritmos estocásticos para a produção de mapas das anisotropias da radiação cósmica de fundo em microondas.De forma a avaliar o método proposto, dados sequenciais na ordem de O(1000) a O(100.000) foram gerados. No método proposto, nenhuma restrição foi aplicada, sendo a solução candidata inicial selecionada de um conjunto de dados de uma hora de aquisição.em substituição ao método tradicional de se gerar um vetor aleatório. Pode-se assim mostrar que o uso de algoritmos como o simulated annealing podem gerar mapas de anosotropias da radiação cósmica de fundo em microondas em tempo computacional viável utilizando uma máquina paralela de memória distribuida com chamadas a funções da biblioteca de comunicação paralela, MPI. ABSTRACT: The aim of this work is to study the feasibility of stochastic algorithms to produce Cosmic Microwave Background Radiation Radiation (CMBR) Anisotropy maps. In order to evaluate the proposed method, simulations for time-ordered data (TOD) with up to O(103) and O(105) measurements were performed. In this method, initial constraints were not imposed and the initial guess for the candidate solution was taken from an average of one hour data acquisition, instead of the standard approach of using a random initial guess. It is shown that the use of a simulated annealing algorithm can produce CMBR anisotropy maps in feasible processing time using a distributed memory parallel and a code implemented with calls to the communication library Message Passing Interface (MPI). |
| Area | COMP |
| Type | Computação Científica e Processamento de Alto Desempenho |
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABAC > Solving the CMBR... |
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > Solving the CMBR... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| data URL | http://urlib.net/ibi/lac.inpe.br/worcap/2004/10.05.16.12 |
| zipped data URL | http://urlib.net/zip/lac.inpe.br/worcap/2004/10.05.16.12 |
| Target File | worcap_RVCorrea.pdf |
| User Group | administrator hideki.carvalho@lac.inpe.br rvcorrea |
| Visibility | shown |
| Update Permission | not transferred |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ESGTTP 8JMKD3MGPCW/3ETR8EH |
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.39.30 2 sid.inpe.br/mtc-m21/2012/07.13.14.43.11 1 sid.inpe.br/mtc-m18/2011/03.14.11.56 1 |
| Host Collection | dpi.inpe.br/hermes2@1905/2005/09.28.12.36 sid.inpe.br/mtc-m18@80/2008/03.17.15.17 |
| 6. Notes | |
| Empty Fields | archivingpolicy archivist callnumber contenttype copyholder copyright creatorhistory descriptionlevel dissemination doi edition electronicmailaddress identifier isbn issn label language lineage mark mirrorrepository nextedition notes numberofvolumes orcid pages parameterlist parentrepositories previousedition previouslowerunit progress project readergroup readpermission rightsholder schedulinginformation secondarydate secondarykey secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype url versiontype volume |
| 7. Description control | |
| e-Mail (login) | banon |
| update | |