[Wrf-users] How many CPU I should allocate for 2 year hind-cast

[mmkamal at sciborg.uwaterloo.ca]

Dear All,


I would like to run a two year hind-cast simulation for the period of  
2007-2008 over North-Eastern North America with 3 nest. The  
namelist.wps file is given below.



&share
wrf_core = 'ARW',
max_dom = 3,
start_date =  
'2007-01-01_00:00:00','2007-01-01_00:00:00','2007-01-01_00:00:00',
end_date = '2008-12-31_00:00:00','2008-12-31_00:00:00','2008-12-31_00:00:00',
interval_seconds = 10800,
io_form_geogrid = 2,
/

&geogrid
parent_id = 0, 1, 2,
parent_grid_ratio = 1, 3, 3,
i_parent_start = 1, 124, 91,
j_parent_start = 1, 106, 42,
s_we = 1, 1, 1,
e_we = 325, 181, 154,
s_sn = 1, 1, 1,
e_sn = 250, 163, 202,
geog_data_res = '10m','5m','2m',
dx = 8000,
dy = 8000,
map_proj = 'lambert',
ref_lat = 43.,
ref_lon = -80.,
truelat1 = 30.,
truelat2 = 60.,
stand_lon = -80,
geog_data_path = '/work/kamal/DATA/geog'
/
&ungrib
out_format = 'WPS',
prefix = 'NARR_FLX',
/

&metgrid
fg_name = 'NARR'
io_form_metgrid = 2,
constants_name ='./NARRFIX:1979-11-08_00'
/

&mod_levs
press_pa = 201300 , 200100 , 100000 ,
95000 , 90000 ,
85000 , 80000 ,
75000 , 70000 ,
65000 , 60000 ,
55000 , 50000 ,
45000 , 40000 ,
35000 , 30000 ,
25000 , 20000 ,
15000 , 10000 ,
5000 , 1000
/


========================================================================
The system configuration where I am going to run WRF is given below:
========================================================================
Manufacturer HP
Operating System XC 4.0 (RHEL 5.1)
Interconnect InfiniBand
Total processors/cores 2704

Nodes 0-0 8 cores
2 sockets x 4 cores per socket
Xeon @ 2.83 GHz
Type: Admin
Notes: Admin node
Memory: 16.0 GB
Local storage: GB


1-336 8 cores
2 sockets x 4 cores per socket
Xeon @ 2.83 GHz
Type: Compute
Notes: Compute nodes
Memory: 16.0 GB
Local storage: GB


377-377 8 cores
2 sockets x 4 cores per socket
Xeon @ 2.83 GHz
Type: Login
Notes: Login node
Memory: 16.0 GB
Local storage: GB

Total attached storage 130000.0 GB
Suitable use Parallel applications




Would you please tell me how many CPU I should allocate to finish the  
run successfully with limited duration (roughly ~ 15 days). I am using  
WRF 3.1.1.




Thanks in advance
Kamal
University of Waterloo
Canada