Submitted as: development and technical paper 10 Dec 2018
Submitted as: development and technical paper | 10 Dec 2018
Optimization of the WRFV3.7 adjoint model
- 1School of Computer & Information Sciences, Southwest University, Chongqing, 400715
- 2LASG, Institute of Atmospheric Physics, Beijing 100029, China
- 3Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing 100084, China
- 4University of Chinese Academy of Sciences, Beijing 100049, China
- 1School of Computer & Information Sciences, Southwest University, Chongqing, 400715
- 2LASG, Institute of Atmospheric Physics, Beijing 100029, China
- 3Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing 100084, China
- 4University of Chinese Academy of Sciences, Beijing 100049, China
Abstract. This work focused on a new strategy for productively improving the performance of adjoint models. By using several techniques including the push/pop-free method, careful Input/Output (IO) analysis and the use of the conception of adjoint locality, we reduced the adjoint cost of the Weather Research and Forecasting plus (WRFPLUS) by almost half on different numbers of processors especially with a slight decrease in total memory. Several experiments are conducted using the four-dimensional variational data assimilation (4DVar) method. The results show that the total time cost of running a 4DVar application is decreased by approximately 1/3.
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Qiang Cheng et al.


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RC1: 'Review of "Optimization of the WRFV3.7 adjoint model" (gmd-2018-310) by Qiang Cheng et al.', Anonymous Referee #1, 01 Jan 2019
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AC1: 'Response to Anonymous Reviewer 1', Juanjuan Liu, 23 Apr 2019
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AC1: 'Response to Anonymous Reviewer 1', Juanjuan Liu, 23 Apr 2019
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RC2: 'Interactive comment on “Optimization of the WRFV3.7 adjoint model”', Anonymous Referee #2, 07 Mar 2019
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AC1: 'Response to Anonymous Reviewer 1', Juanjuan Liu, 23 Apr 2019
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AC2: 'Response to Anonymous Reviewer 2', Juanjuan Liu, 23 Apr 2019
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AC1: 'Response to Anonymous Reviewer 1', Juanjuan Liu, 23 Apr 2019


-
RC1: 'Review of "Optimization of the WRFV3.7 adjoint model" (gmd-2018-310) by Qiang Cheng et al.', Anonymous Referee #1, 01 Jan 2019
-
AC1: 'Response to Anonymous Reviewer 1', Juanjuan Liu, 23 Apr 2019
-
AC1: 'Response to Anonymous Reviewer 1', Juanjuan Liu, 23 Apr 2019
-
RC2: 'Interactive comment on “Optimization of the WRFV3.7 adjoint model”', Anonymous Referee #2, 07 Mar 2019
-
AC1: 'Response to Anonymous Reviewer 1', Juanjuan Liu, 23 Apr 2019
-
AC2: 'Response to Anonymous Reviewer 2', Juanjuan Liu, 23 Apr 2019
-
AC1: 'Response to Anonymous Reviewer 1', Juanjuan Liu, 23 Apr 2019
Qiang Cheng et al.
Qiang Cheng et al.
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