| | 2 | The model works with a set of files, which are all located in the temporary working directory and which are either expected at the beginning of the run (the so-called input files) or which are produced during the run and/or at the end of the simulation (output files). The following table lists all default files addressed by the model. They are arranged according to the associated FORTRAN unit (unit number). The unit 90 is used for different files, which are opened only briefly and uniquely in the model and closed directly afterwards. Unit numbers 101 - 109, 111 - 113, and 116 refer to data files which have netCDF format. These are not opened by a FORTRAN-OPEN-statement but by a corresponding netCDF call (NF90_CREATE or NF90_OPEN). These files are only created on machines where a netCDF library is available. \\\\ |
| | 3 | The file names described in the list correspond to the names indicated in the respective OPEN instruction, i.e. the files are expected and saved under these names in the temporary working directory of the model. By default, file names are always written in capital letters. The third column indicates whether it is an input or output file (I and/or O). The netCDF files can be both input and output files (I/O). If restart jobs shall append data to an existing netCDF file (created by a previous job of the job chain), the respective file has to be given as an input file (see also [wiki:chapter451 chapter 4.5.1] which gives more details about the PALM-netCDF-output). \\\\ |
| | 4 | On parallel computers many of the files are read and/or written by the central processing element 0 (PE0) only. These files have processor-independent content (and therefore they can be read or written by other PEs just as well). However, certain files have processor-dependent content. For the binary output of data for restart runs (local file [#BINOUT BINOUT]), for example, each PE outputs only the data of its subdomain. So each processing element writes into its own file with its own file name. These files lie in a subdirectory of the temporary working directory. Their names are build off from the underline ("_ ") and the four digit processor ID. The data written for restart runs would be e.g. on the files BINOUT/_0000 (PE0), BINOUT/_0001 (PE1), BINOUT/_0002 (PE2) etc. Such files, which have processor-dependent content on parallel computers, are marked in the following list by the fact, that to the file name a line ("/") is attached. If appropriate output files are to be copied through '''mrun''' to permanent files, and/or files with processor-dependent content are supposed to be copied as input files into the temporary working directory of the model, you have to indicate a special file attribute in the appropriate file connection statement (see [wiki:arpe arpe], [wiki:flpe flpe] in the '''mrun''' description). Then the permanent file name will be interpreted as a directory name, in which the input files are expected and/or to which output files are written. The file names in these directories are always named _0000, _0001, _0002 etc. \\\\ |
| | 5 | For internal use, the model may open a set of further files, which are not defined by the user but contain no usable information and therefore are not included in this list. \\\\ |
| | 6 | In case of [wiki:coupled coupled] atmosphere-ocean runs (see [wiki:chapter38 chapter 3.8), both the atmosphere and the [../inipar#ocean ocean] executable use the same temporary working directory. However, each executable requires its own, unique set of files for I/O. In order to distinguish between atmosphere and ocean files, coupled atmosphere-ocean runs use the following filename convention. The atmosphere executable uses the set of normal filenames given in the table below. The ocean executable uses a set of modified filenames that have the string '_O' added to their normal name. The coupled ocean filenames are given in brackets in the table below where applicable. The string '_O' is simply appended to most filenames; exceptions are highlighted in bold face. ('''Note''': uncoupled ocean runs use the normal set of filenames without '_O'.) \\ |
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