1 / 18

Summary of WG6 Activities - 19th COSMO General Meeting

This summary outlines the activities of Working Group 6 at the 19th COSMO General Meeting, including reporting, NWP test suite, PT EDP2, new post-processing, web updates, and new Italian configuration.

richarda
Download Presentation

Summary of WG6 Activities - 19th COSMO General Meeting

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Summary of WG6 activities Massimo Milelli & all the group members 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  2. Outline • Reporting • NWP Test Suite • PT EDP2 • New PP • Web updates • New Italian configuration 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  3. Outline • Reporting • NWP Test Suite • PT EDP2 • New PP • Web updates • New Italian configuration 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  4. Reporting • Newsletter: July 2017 (5 contributions) • Technical Reports: • A Turbulence Kinetic Energy - Scalar Variance Turbulence Parameterization Scheme, D. Mironov and E. Machulskaya (TR30) • CALMO - Progress Report, P. Khain, I. Carmona, A. Voudouri, E. Avgoustoglou, J.-M. Bettems, F. Grazzini and P. Kaufmann (TR31) • Calibration of COSMO Model, Priority Project CALMO Final report, A. Voudouri, P. Khain, I. Carmona, E. Avgoustoglou, J.M. Bettems, F. Grazzini, O. Bellprat, P. Kaufmann and E. Bucchignani (TR32) • V.A.S.T. (Versus Additional Statistical Techniques) User Manual (v2.0), N. Vela (TR33) • Common plot activity 2016-2017 • TRs from PP CORSO, PP COTEKINO and PP KENDA are pending 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  5. Outline • Reporting • NWP Test Suite • PT EDP2 • New PP • Web updates • New Italian configuration 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  6. NWP Test Suite • Forecast mode vs Hindcast mode • MEC+FF vs VERSUS The discussion started via email some time ago, then during the STC meeting on Monday and it continued during the joint WG6/WG5 meeting. A conclusion is not yet reached, there will be a follow-up during SMC meeting on Friday morning. 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  7. Outline • Reporting • NWP Test Suite • PT EDP2 • New PP • Web updates • New Italian configuration 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  8. PT Evaluation of the Dycore Parallel Phase (EDP2) • Task duration : 01/2017 – 08/2017 • Two implementations of the RK dynamical core coexist in COSMO: • Fortran • C++ based on STELLA Library (required to run on GPU) • C++ version will soon be in the official version (with 5.05) • STELLA dycore is required to run the model on GPU, faster on CPU also • Maintenance effort 0.5 FTE/year 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  9. Developer experience (using STELLA) • C++ Dycore Source Code Maintainer (P. Spörri, MCH) : nice and efficient to write single source performance portable HPC code • C++ Dycore Users: Experiences at DWD: very different than higher programming language (like Fortran, C++, Python, ...), need permanent support for development. => Seen as a large obstacle for model development • Experience at IMGW (port of EULAG with GridTools): while this is early stage, progress is good and currently there are no major obstacles to port the Fortran code to C++. => Divergent opinions ! 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  10. Developer experience (using STELLA) • Recommendation • Extend the parallel phase of maintaining both the C++ and Fortran implementations • Evaluate again after a period of at least two years • C++ Dycore Source Code Maintainer (P. Spörri, MCH) : nice and efficient to write single source performance portable HPC code • C++ Dycore Users: Experiences at DWD: very different than higher programming language (like Fortran, C++, Python, ...), need permanent support for development. => Seen as a large obstacle for model development • Experience at IMGW (port of EULAG with GridTools): while this is early stage, progress is good and currently there are no major obstacles to port the Fortran code to C++. => Divergent opinions ! 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  11. Outline • Reporting • NWP Test Suite • PT EDP2 • New PP • Web updates • New Italian configuration 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  12. PP CEL-ACCEL There is a new WG6 PP about COSMO-EULAG on accelerators (PP CEL-ACCEL) by Z. Piotrowski. The aim is to implement consistent anelastic/compressible COSMO-EULAG dynamical core (DC) within the C++ dynamical core framework of COSMO (the main deliverable being the high-resolution forecasting system ready for pre-operational testing on modern supercomputing architectures, viz., GPU and manycore CPUs). The duration is 2.5y (03.17-09.19) and the participants are IMGW and MCH. 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  13. Outline • Reporting • NWP Test Suite • PT EDP2 • New PP • Web updates • New Italian configuration 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  14. Main webupdates after the meeting in March • Added filters to publication list (by year and by WG topic) • Newly organised Software page • New FTE summary tables for PPs and PTs • In the main home menu (left side), under “Documentation/Release Notes” now the files misc.global are available (better visibility) • PP pages and Events page updated • PT pages added in the main home menu (left side) • SMC repository added to the “User Support/Repository” page • Info about licensees in “Operational” pages 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  15. Still to be done… There is an idea to include COSMO-LEPS maps Documentation of TERRA to be included (public wiki) but DWD internal discussion is still needed Need to update some “Operational” pages Comprehensive grib2 page Updating FAQ page 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  16. Outline • Reporting • NWP Test Suite • PT EDP2 • New PP • Web updates • New Italian configuration 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  17. 13/09/2017 – 19th COSMO General Meeting, Jerusalem

  18. Thanks for your attention and for your work ! 13/09/2017 – 19th COSMO General Meeting, Jerusalem

More Related