Changes between Version 7 and Version 8 of user/techene/TP_live

Timestamp:

2021-02-10T16:28:07+01:00 (3 years ago)

Author:

techene

Comment:

--

user/techene/TP_live

@@ -29 +29 @@
 * check the command you used to compile !
 
+
+
 == Then run the code
 {{{
@@ -49 +51 @@
 The run procedure is written in README_run.
 
+
+
 == Look at the output
 {{{
@@ -65 +69 @@
 nn_leapy = 0 
 }}}
-with these parameters
+with these parameters... run again a NEMO simulation (check LD path is OK)
+{{{
+mpirun -np 4 ./nemo
+}}}
+To speed up NEMO divides the domain into 4 part (in this case). Now you have to gather again. It seems that there is a bug in NEMO rebuilt. So you have to output all the files by proc and rebuild the file "by hand".
 {{{
 rm PAC2_1m_19940101_19941231_grid_T.nc
@@ -71 +79 @@
 }}}
 
-Now you can visualise with ncview
+Now you can visualise the whole bassin with ncview.
+
 {{{
 rm PAC2_1m_19940101_19941231_grid_T.nc 
@@ -91 +100 @@
 ./rebuild -o PAC2_1d_19940101_19941231_grid_W.nc PAC2_1m_19940101_19941231_grid_W_00*
 }}}
+
+
+
+== This was the first year
+Now we can run interesting things... 
+The first simulation ran 1 year but NEMO is able to restart after this one year. 
+
+=== Run the second year 
+In order to produce this new simulation you have to change the parameters file here called 'namelist_cfg'.  
+{{{
+vi namelist_cfg
+}}}
+
+To tell NEMO to restart from previous simulation results you have to modify it the namrun block as such. 
+{{{
+&namrun
+: 
+ln_rstart    = .true.
+nn_rstctl    =    2   
+cn_ocerst_in = PAC2_*_restart  (with the correct name of restart file)
+nn_it000= 4381 (nn_itend year before +1) avec un pas de temps de 2h
+nn_itend= 1year duration = 4380+4*4380 = 21900
+}}}
+nn_it000 is the first time step of the first year we have to simulate which is actually the second year of the bunch. nn_itend is the end of the bunch if year we want to simulate. cn_ocerst_in is the pattern for the restart file name. [[BR]]
+
+All parameters from a student.
+{{{
+cn_exp = "PAC2" ! experience name
+nn_it000 = 4381 ! first time step
+nn_itend = 21900 ! last time step
+nn_date0 = 19940101 ! date at nit_0000 (format yyyymmdd) used if ln_rstart=F or (ln_rstart=T and nn_rstctl=0 or 1)
+nn_leapy = 0 ! Leap year calendar (1) or not (0)
+ln_rstart = .true. ! start from rest (F) or from a restart file (T)
+cn_ocerst_in = "PAC2_00004380_restart" ! suffix of ocean restart name (input)
+cn_ocerst_indir = "." ! directory from which to read input ocean restarts
+nn_rstctl = 2 ! = 2 nn_date0 read in restart ; nn_it000 : check consistancy between namelist and restart 
+}}}