| Coastal Ocean Modeling Framework on NOAA's high performance computer (COMF-HPC) - :14421 | National Ocean Service (NOS)
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Coastal Ocean Modeling Framework on NOAA's high performance computer (COMF-HPC)
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  • Description:
    "The Coastal Ocean Modeling Framework for NOAA's High Performance Computer (COMFHPC) is an end-to-end set of common tools for the NOAA National Ocean Service's (NOS) operational three-dimensional hydrodynamic model-based coastal ocean forecast systems. These forecast systems, in general, are jointly developed by the Center for Operational Oceanographic Products and Services (CO-OPS) and the Coast Survey Development Laboratory (CSDL) of the Office of Coast Survey (OCS) of the National Ocean Service, and implemented and run on NOAA's High Performance Computers operated by the National Weather Service's (NWS) National Centers for Environmental Prediction's (NCEP) Central Operations (NCO). The COMF-HPC consists of a set of standards and a comprehensive software infrastructure which is shared by all NOS' hydrodynamic-model operational forecast systems used to generate all input files, such as meteorological forcing, lateral open boundary forcing, river forcing, and model runtime control files, etc. required to run a NOS Operational Forecast System (OFS) which are based on hydrodynamic models. The use of COMF-HPC by all NOS operational forecast systems will allow a multiplicity of forecast systems to be operated and maintained in an efficient and robust manner. COMF-HPC will help to ensure a high time-and-cost efficiency for OFS development, transition, and operational maintenance. This document is organized as follows. Section 1 introduces the background of the COMF-HPC, including its development history, infrastructure, and data flows and the logics of the OFS execution. Section 2 describes the data sets and static files involved in the COMF-HPC system. Section 3 describes the three main control files in the COMF-HPC system. Section 4 explains script and FORTRAN programs in COMF-HPC. Section 5 describes processes to implement an operational forecast system under COMF-HPC environment. Section 6 describes key immediate and final OFS output files residing in the OFS work directory. Section 7 describes the archive of the OFS outputs. Section 8 is a general instruction to diagnose and fix common failures occurred during execution of an operational forecast system. COMF-HPC was originally developed and implemented on the High-Performance Computing Systems of Central Computer System (CCS). On 25 July 2013, NOAA transitioned all NCEP operated Production Suite including NOS OFSs to the new Weather & Climate Operational Supercomputing System (WCOSS), named Tide and Gyer. Therefore, COMF-HPC was transitioned to WCOSS operating system environment as well. The major changes are using FORTRAN compiler, otherwise, there are no significant differences of COMF-HPC on CCS and WCOSS"--Executive Summary.

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