Changes between Version 8 and Version 9 of Users/ReferenceConfigurations/GYRE_PISCES

Timestamp:

2017-05-17T11:53:05+02:00 (8 years ago)

Author:

nicolasmartin

Comment:

--

Users/ReferenceConfigurations/GYRE_PISCES

@@ -11 +11 @@
 
 1. Choose the grid size
-In `CONFIG/GYRE/EXP00`, edit your `namelist_cfg` file to change the `jp_cfg`, `jpi`, `jpj`, `jpk` variables in &namcfg:
-||JP_CFG        ||JPI   ||JPJ   ||JPK   ||Number of points      ||Equivalent to||
-||1             ||  30  ||  20  ||101   ||60600                 ||GYRE 1°      ||
-||25            || 750  || 500  ||101   ||37875000              ||ORCA 1/2°    ||
-||50            ||1500  ||1000  ||101   ||151500000             ||ORCA 1/4°    ||
-||150           ||4500  ||3000  ||101   ||1363500000            ||ORCA 1/12°   ||
-||200           ||6000  ||4000  ||101   ||2424000000            ||ORCA 1/16°   ||
+
+   In `CONFIG/GYRE/EXP00`, edit your `namelist_cfg` file to change the `jp_cfg`, `jpi`, `jpj`, `jpk` variables in &namcfg:
+   ||  `jp_cfg`  ||  `jpi`  ||  `jpj`  ||  `jpk`   ||  Number of points  ||  Equivalent to  ||
+   ||           1||       30||       20||   101    ||               60600||GYRE 1°          ||
+   ||          25||      750||      500||   101    ||            37875000||ORCA 1/2°        ||
+   ||          50||     1500||     1000||   101    ||           151500000||ORCA 1/4°        ||
+   ||         150||     4500||     3000||   101    ||          1363500000||ORCA 1/12°       ||
+   ||         200||     6000||     4000||   101    ||          2424000000||ORCA 1/16°       ||
 
 2. In `namelist_cfg` again, avoid problems in the physics (and results will not be meaningful in terms of physics) by setting `nn_bench = 1` in &namctl
 {{{#!f
-nn_bench    =    1     !  Bench mode (1/0): CAUTION use zero except for bench
+   nn_bench    =    1     !  Bench mode (1/0): CAUTION use zero except for bench
 }}}
 
 3. If you increase domain size, you may need to decrease time-step (for stability) by changing `rn_rdt` value in &namdom (i.e. for `jp_cfg = 150`, ORCA12 equivalent, use `rn_rdt = 1200`)
 {{{#!f
-rn_rdt      = 1200.     !  time step for the dynamics
+   rn_rdt      = 1200.     !  time step for the dynamics
 }}}
 
 4. Optional, in order to increase the number of MPI communication for benchmark purposes: you can change the number of sub-timesteps computed in the time-splitting scheme each iteration. First change the list of active CPP keys for your experiment, in `CONFIG/"your configuration name"/cpp_"your configuration name".fcm` : replace key_dynspg_flt by key_dynspg_ts and recompile/create your executable again
 {{{#!sh
-makenemo [...] add_key "key_dynspg_ts" del_key "key_dynspg_flt"
+   makenemo [...] add_key "key_dynspg_ts" del_key "key_dynspg_flt"
 }}}
 In your `namelist_cfg` file, edit the &namsplit namelist by adding the following line: 
 {{{#!f
-nn_baro       =    30               !  Number of iterations of barotropic mode/
+   nn_baro       =    30               !  Number of iterations of barotropic mode/
 }}}
 `nn_baro = 30` is a kind of minimum (we usually use 30 to 60).So than increasing the `nn_baro` value will increase the number of MPI communications.