Changeset 9393 for branches/2017/dev_merge_2017/DOC/tex_sub/chap_misc.tex
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- 2018-03-13T15:00:56+01:00 (6 years ago)
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branches/2017/dev_merge_2017/DOC/tex_sub/chap_misc.tex
r9392 r9393 14 14 % Representation of Unresolved Straits 15 15 % ================================================================ 16 \section{Representation of Unresolved Straits}16 \section{Representation of unresolved straits} 17 17 \label{MISC_strait} 18 18 … … 89 89 % Sub-Domain Functionality 90 90 % ================================================================ 91 \section{Sub- Domain Functionality}91 \section{Sub-domain functionality} 92 92 \label{MISC_zoom} 93 93 94 \subsection{Simple subsetting of input files via netCDF attributes}94 \subsection{Simple subsetting of input files via NetCDF attributes} 95 95 96 96 The extended grids for use with the under-shelf ice cavities will result in redundant rows … … 100 100 existing 'zoom' options are overly complex for this task and marked for deletion anyway. 101 101 This alternative subsetting operates for the j-direction only and works by optionally 102 looking for and using a global file attribute (named: \np{open _ocean_jstart}) to102 looking for and using a global file attribute (named: \np{open\_ocean\_jstart}) to 103 103 determine the starting j-row for input. The use of this option is best explained with an 104 104 example: Consider an ORCA1 configuration using the extended grid bathymetry and coordinate … … 109 109 \noindent These files define a horizontal domain of 362x332. Assuming the first row with 110 110 open ocean wet points in the non-isf bathymetry for this set is row 42 (Fortran indexing) 111 then the formally correct setting for \np{open _ocean_jstart} is 41. Using this value as the111 then the formally correct setting for \np{open\_ocean\_jstart} is 41. Using this value as the 112 112 first row to be read will result in a 362x292 domain which is the same size as the original 113 113 ORCA1 domain. Thus the extended coordinates and bathymetry files can be used with all the … … 128 128 129 129 \noindent Note the j-size of the global domain is the (extended j-size minus 130 \np{open _ocean_jstart} + 1 ) and this must match the size of all datasets other than130 \np{open\_ocean\_jstart} + 1 ) and this must match the size of all datasets other than 131 131 bathymetry and coordinates currently. However the option can be extended to any global, 2D 132 132 and 3D, netcdf, input field by adding the: … … 135 135 lrowattr=ln_use_jattr 136 136 \end{forlines} 137 optional argument to the appropriate \np{iom _get} call and the \np{open_ocean_jstart} attribute to the corresponding input files. It remains the users responsibility to set \np{jpjdta} and \np{jpjglo} values in the \np{namelist_cfg} file according to their needs.137 optional argument to the appropriate \np{iom\_get} call and the \np{open\_ocean\_jstart} attribute to the corresponding input files. It remains the users responsibility to set \np{jpjdta} and \np{jpjglo} values in the \np{namelist\_cfg} file according to their needs. 138 138 139 139 %>>>>>>>>>>>>>>>>>>>>>>>>>>>> … … 149 149 % Accuracy and Reproducibility 150 150 % ================================================================ 151 \section{Accuracy and Reproducibility (\protect\mdl{lib\_fortran})}151 \section{Accuracy and reproducibility (\protect\mdl{lib\_fortran})} 152 152 \label{MISC_fortran} 153 153 … … 223 223 required by each individual for the fold operation. This alternative method should give identical 224 224 results to the default \textsc{ALLGATHER} method and is recommended for large values of \np{jpni}. 225 The new method is activated by setting \np{ln _nnogather} to be true ({\bf nammpp}). The225 The new method is activated by setting \np{ln\_nnogather} to be true ({\bf nammpp}). The 226 226 reproducibility of results using the two methods should be confirmed for each new, non-reference 227 227 configuration. … … 230 230 % Model optimisation, Control Print and Benchmark 231 231 % ================================================================ 232 \section{Model Optimisation, Control Print and Benchmark}232 \section{Model optimisation, control print and benchmark} 233 233 \label{MISC_opt} 234 234 %--------------------------------------------namctl------------------------------------------------------- … … 251 251 $\bullet$ Control print %: describe here 4 things: 252 252 253 1- \np{ln _ctl} : compute and print the trends averaged over the interior domain253 1- \np{ln\_ctl} : compute and print the trends averaged over the interior domain 254 254 in all TRA, DYN, LDF and ZDF modules. This option is very helpful when 255 255 diagnosing the origin of an undesired change in model results. 256 256 257 2- also \np{ln _ctl} but using the nictl and njctl namelist parameters to check257 2- also \np{ln\_ctl} but using the nictl and njctl namelist parameters to check 258 258 the source of differences between mono and multi processor runs. 259 259 260 260 %%gm to be removed both here and in the code 261 3- last digit comparison (\np{nn _bit_cmp}). In an MPP simulation, the computation of261 3- last digit comparison (\np{nn\_bit\_cmp}). In an MPP simulation, the computation of 262 262 a sum over the whole domain is performed as the summation over all processors of 263 263 each of their sums over their interior domains. This double sum never gives exactly … … 269 269 %%gm end 270 270 271 $\bullet$ Benchmark (\np{nn _bench}). This option defines a benchmark run based on271 $\bullet$ Benchmark (\np{nn\_bench}). This option defines a benchmark run based on 272 272 a GYRE configuration (see \S\ref{CFG_gyre}) in which the resolution remains the same 273 273 whatever the domain size. This allows a very large model domain to be used, just by
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