[ferret_users] Memory error

[abs15ms027 <abs15ms027@xxxxxxxxxxxxxx>]

Hello,

I am repeatedly getting an error while using some of the data sets in 
Ferret. Error is as follows:

Command file, command group, or REPEAT execution aborted
           *** NOTE: You can use SET MEMORY/SIZE=xxx to increase 
memory.
           *** NOTE: The "Memory use" section of the FERRET Users Guide 
has further tips.

I tried SET MEMORY/SIZE=1400 and SET MEMORY/SIZE=5e12, but still, I am 
getting the same error.

My script looks as follows.

use abs_era_data.nc
set mode metafile
let 
ab=(sst_0001[x=120:180@ave,y=-16:6@ave]+sst_0001[x=-150:-180@ave,y=-16:6@ave])/2
let p=ab
let q=sp_0001[g=sst_0001]

go variance
let ad=(correl)*(39/(1-(correl)^2))^0.5
let sign=if abs(ad) ge 2.02269092 then correl


fill/x=-70:100/y=0:55/pal=blue_orange/nolab correl #getting error at 
this lin
contour/x=-40:90/y=12:60/ov/nolab sign
go box 8,-13,41,52
go box 69.5,75,29,35.5
go land thick

LABEL ,,-1,0,.16 "Longtitude"
LABEL ,,-1,90,.16 "Latitude"


label/nouser 4.5,6.5,0,0,0.1 "@TRcorrelation of SST over equitorial 
Pacific with Surface pressure"
cancel mode metafile
sp Fprint -o slp_sst_ipwp_correl_qq.ps metafile.plt


Ferret version I am using is FERRET v7 (opt)

The data set used is ERA 5 single-level data and includes these 
variables:-

 name     title                             I         J K        L      
  M         N
 SST_0001 Sea surface temperature          1:1440    1:721 ...      
1:164     ...       ...
 SP_0001  Surface pressure                 1:1440    1:721 ...      
1:164     ...       ...
 TP_0001  Total precipitation              1:1440    1:721 ...      
1:164     ...       ...
 SST_0005 Sea surface temperature          1:1440    1:721 ...      
1:164     ...       ...
 SP_0005  Surface pressure                 1:1440    1:721 ...      
1:164     ...       ...
 TP_0005  Total precipitation              1:1440    1:721 ...      
1:164

It would be of great help if you could provide me with a solution to 
this problem.

Thanking you in anticipation
Asiya