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[ferret_users] Memory question



Hi all,

I am trying to regrid a 0.5 deg dataset to 5-min and then write it out as a NetCDF file. I use the following commands:

use 030410_init_wsoi.nc
use vegtype_5min.nc
show grid vegtype[d=2]
show grid wsoi_lay[d=1]
define grid/X=GJR1/Y=GJR1/Z=GOL1/L=GOL1 veg_grid
let wsoi =  wsoi_lay[d=1,G=veg_grid]
set variable/title="Soil Moisture" wsoi
set region/X=-179.96:179.96/Y=-89.958:89.958N/Z=0.1:4/T=6941:7275
save/file=wsoi.nc wsoi

At that point I get:
 **ERROR: insufficient memory: 18662400 words were requested.
 *** NOTE: You can use SET MEMORY/SIZE=xxx to increase memory.
*** NOTE: The "Memory use" section of the FERRET Users Guide has further tips.

So I:
set memory/size=20000000

And I get:
*** NOTE: internal overflow expressing =20000000 Mwords as words. Restoring previous memory size.
 Cached data cleared from memory

If I try to set memory/size=1000000000 FERRET says it has done it, but then I run out of memory again if I try to write out:
 **ERROR: insufficient memory: 671846400 words were requested.
 *** NOTE: You can use SET MEMORY/SIZE=xxx to increase memory.
*** NOTE: The "Memory use" section of the FERRET Users Guide has further tips

Any thoughts on what is going on or how I may be able to do this? Thank you in advance for the assistance.

Best,

Jonathan


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