@InProceedings{SouzaMend:2016:OpCoPe,
               author = "Souza, Jefferson Gon{\c{c}}alves de and Mendes, Celso Luiz",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Optimization of the computational performance of radiative 
                         transfer model",
                 year = "2016",
         organization = "Workshop de Computa{\c{c}}{\~a}o Aplicada, 16. (WORCAP)",
             abstract = "In this work, ways are being sought to improve the computational 
                         efficiency of the radiative transfer model BrasilSR. This model 
                         was adapted to Brazilian conditions by LABREN/CCST/INPE, the main 
                         feature of this group is to quantify the solar energy resource, 
                         from incident solar radiation estimates from the Earths surface. 
                         This is achieved by combining the approach of two streams in the 
                         solution of a radiative transfer equation with the use of 
                         climatological data and parameters determined from GOES family of 
                         satellite images. The computer code presents results in models 
                         used by the scientific community. However, due to its 
                         computational cost, there is a high processing time involved when 
                         such processing is performed in conventional processors (typically 
                         a few days of processing). In the first phase of this study, an 
                         analysis is being carried out of the performance of the original 
                         version of the model - which is performed in sequential mode - in 
                         order to indicate which processes are the most computationally 
                         expensive ones. From these initial results, some parallelization 
                         techniques are being explored in order to optimize their more 
                         intensive sections, on the assumption that the parallelization 
                         through the use of multiple threads in a shared memory environment 
                         could bring improvements to the code. The implementation of this 
                         kind of parallelization can be accomplished with standard OpenMP 
                         directives, which allow the creation and automatic management of 
                         threads, without much programming effort. The effectiveness of 
                         this type of parallelization can be measured by model performance 
                         comparisons as more threads are used in its execution.",
  conference-location = "S{\~a}o Jos{\'e} dos Campos, SP",
      conference-year = "25-26 out.",
             language = "en",
           targetfile = "souza_optimization.pdf",
        urlaccessdate = "12 maio 2024"
}