Re: Save an array to memory for another program to read it

Hello,

Nektarios - Greece wrote:
I run a program and suppose it creates an array A.
I need the program to store into memory this array, end itself and when immediately runs again to load this array again from the memory.

H O W ?

One way is something like this

test to see if a file exists, named, say, array_a.dat

if it exists, read it

if not, compute A and write it to a file named array_a.dat

(You can choose any name you want for the file,
I chose array_a.dat for illustration.)

I am new in Fortran. So, please help me.

Thus,

program ...

real(...), dimension(...) :: a

inquire( file='array_a.dat', exists= file_exists)

if( file_exists )then

open( unit= a_unit, file= 'array_a.dat', form= 'unformatted', &
access= 'sequential', status= 'old')

call compute_array_a( a)

write( unit= a_unit) a

else

open( unit= a_unit, file= 'array_a.dat', form= 'unformatted', &
access= 'sequential', status= 'new')

read( unit= a_unit) a

endif

end program ...

I left out a bunch of stuff, but that's one general way
to solve my understanding of your problem.

HTH

--
Cheers!

Dan Nagle
Purple Sage Computing Solutions, Inc.
.

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