The DYNAMICO dynamical core - Revision history

Aurelien.falco: /* Mixed bag of comments about the run's setup and outputs */

2024-12-19T10:05:44Z

‎Mixed bag of comments about the run's setup and outputs

2024-12-19T10:05:24Z

‎Mixed bag of comments about the run's setup and outputs

2024-11-26T14:58:17Z

‎Running DYNAMICO with a physics package (Generic,Mars,Venus,Pluto)

2024-10-22T09:15:41Z

‎Mixed bag of comments about the run's setup and outputs

2024-10-22T09:03:53Z

‎Downloading and compiling DYNAMICO

2024-10-22T09:03:19Z

‎Installing and running DYNAMICO: ulimit in compilation step (pre-running examples)

2024-10-18T16:45:43Z

‎Running a simple Held and Suarez test case

2024-10-18T15:48:21Z

‎Running DYNAMICO with a physics package (Generic,Mars,Venus,Pluto)

2024-10-18T15:45:28Z

‎Running a simple Held and Suarez test case

2024-10-18T13:54:24Z

moved section

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 ==== Mixed bag of comments about the run's setup and outputs ====
 For those interested in more details about the key aspects and main parameters, here is a nice page about each parameter: https://gitlab.in2p3.fr/ipsl/projets/dynamico/dynamico/-/blob/master/PARAMETERS.md?ref_type=heads
 Otherwise a few information:
 * The run control parameters are set in the ''[[Run.def for Held&Suarez test case|run.def]]'' ASCII file which is read at run-time. This is where for instance one specifies the model resolution (parameters nbp: number of subdivisions of main triangles, and llm: number of vertical levels), time step (parameter day_step: number of steps per day) and length of the run (parameter ndays: number of days to run)

@@ Line 234: / Line 234: @@
 ==== Mixed bag of comments about the run's setup and outputs ====
-For those interested in more details about the key aspects and main parameters:
+For those interested in more details about the key aspects and main parameters, here is a nice page about each parameter: https://gitlab.in2p3.fr/ipsl/projets/dynamico/dynamico/-/blob/master/PARAMETERS.md?ref_type=heads
 * The run control parameters are set in the ''[[Run.def for Held&Suarez test case|run.def]]'' ASCII file which is read at run-time. This is where for instance one specifies the model resolution (parameters nbp: number of subdivisions of main triangles, and llm: number of vertical levels), time step (parameter day_step: number of steps per day) and length of the run (parameter ndays: number of days to run)
 * The sub-splitting of the main rhombus (parameters nsplit_i and nsplit_j) controls the overall number of tiles (sub-domains). As a rule of thumb when running in parallel (MPI) one want to have as many sub-domains as available MPI processes. Since the icosahedron is made up of 10 rhombus this implies that one should target using a total of 10*nsplit_i*nspilt_j processes.

@@ Line 245: / Line 245: @@
 *[[Venus_-_DYNAMICO#Running_Venus_-_DYNAMICO|Venus-DYNAMICO]]
 *[[Mars Dynamico Installation manual|Mars-DYNAMICO]]
 *[[Dynamico-giant#3._General_parameters|Dynamico-giant]]

@@ Line 235: / Line 235: @@
 ==== Mixed bag of comments about the run's setup and outputs ====
 For those interested in more details about the key aspects and main parameters:
-* The run control parameters are set in the ''run.def'' ASCII file which is read at run-time. This is where for instance one specifies the model resolution (parameters nbp: number of subdivisions of main triangles, and llm: number of vertical levels), time step (parameter day_step: number of steps per day) and length of the run (parameter ndays: number of days to run)
+* The run control parameters are set in the ''[[Run.def for Held&Suarez test case|run.def]]'' ASCII file which is read at run-time. This is where for instance one specifies the model resolution (parameters nbp: number of subdivisions of main triangles, and llm: number of vertical levels), time step (parameter day_step: number of steps per day) and length of the run (parameter ndays: number of days to run)
 * The sub-splitting of the main rhombus (parameters nsplit_i and nsplit_j) controls the overall number of tiles (sub-domains). As a rule of thumb when running in parallel (MPI) one want to have as many sub-domains as available MPI processes. Since the icosahedron is made up of 10 rhombus this implies that one should target using a total of 10*nsplit_i*nspilt_j processes.
 * Controlling the outputs made by XIOS is via the XML files, namely ''file_def_dynamico.xml''

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 Before running any example, be sure to modify the stack size to avoid any segmentation fault when running.
-Change your ~/.bashrc to:
+Add this to your ~/.bashrc:
 <pre>

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 If compilation went well than you will find the executable '''icosa_gcm.exe''' in the '''bin''' subdirectory.
 If it fails, be sure to check if you have OpenMP installed and else try to compile with '''-parallel mpi''' only.
 ==== For the experts: more about the arch files and their content ====
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 cp iodef.xml ../../test_HELD_SUAREZ
 </pre>
 Then, copy the executable “icosa_gcm.exe” in the test directory test_HELD_SUAREZ (it is placed in ICOSAGCM/bin):

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 cp *def ../../../test_HELD_SUAREZ
 </pre>
 Do the same for the .xml files:

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 Please see [[DYNAMICO with LMDZ physics]] for compiling DYNAMICO with any LMDZ physics, and refer to each physics package for a tutorial:
-*[[Venus_-_DYNAMICO#Running_Venus_-_DYNAMICO]]
+*[[Venus_-_DYNAMICO#Running_Venus_-_DYNAMICO|Venus-DYNAMICO]]
-*[[Mars Dynamico Installation manual]]
+*[[Mars Dynamico Installation manual|Mars-DYNAMICO]]

@@ Line 95: / Line 95: @@
 cp bin/icosa_gcm.exe ../test_HELD_SUAREZ
 </pre>
 If, when running the model, you want a NetCDF file (.nc) with all the data, you should modify the .xml file “'''file_def_dynamico.xml'''”, line 70, changing the “false” to “true” for “enabled”. This will enable the “dynamico.nc” file to be created, it is already a re-interpolation of the dynamico-grid into long-lat, which makes it usable directly with Ferret/Panoply.

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 If you want to do this again, remember to always use the new '''restart.nc''' file as the starting point (renaming it to start.nc etc...).
 == Running DYNAMICO with a physics package (Generic,Mars,Venus,Pluto) ==
@@ Line 230: / Line 236: @@
 *[[Mars Dynamico Installation manual]]
 [[Category:FAQ]]