Coding in FORTRAN-95- Problems in ALLOCATing memory

tejasumbarkar · September 15, 2012, 18:55

Hey everyone!
I am trying to code a transient flow problem in FORTRAN-95. In course of the code, I need to allocate large memory to arrays and some of these arrays have dimensions like (3*500000*1000) etc. The problem is that when I try to ALLOCATE these sizes to the array, I get the error 'ALLOCATE was unable to obtain sufficient storage'.

Can anyone please shed some light on the matter and suggest a solution...?

Thanks,
Tejas

praveen · September 16, 2012, 05:56

First of all check that you have sufficient RAM.

Secondly, use a one-dimensional array.

If it still does not work, then you probably need more RAM.

September 15, 2012, 18:55	Coding in FORTRAN-95- Problems in ALLOCATing memory	#1
tejasumbarkar New Member Tejas Umbarkar Join Date: Apr 2012 Location: Raleigh, North Carolina, USA Posts: 2 Rep Power: 0	Hey everyone! I am trying to code a transient flow problem in FORTRAN-95. In course of the code, I need to allocate large memory to arrays and some of these arrays have dimensions like (35000001000) etc. The problem is that when I try to ALLOCATE these sizes to the array, I get the error 'ALLOCATE was unable to obtain sufficient storage'. Can anyone please shed some light on the matter and suggest a solution...? Thanks, Tejas

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September 16, 2012, 05:56		#2
praveen Super Moderator Praveen. C Join Date: Mar 2009 Location: Bangalore Posts: 343 Blog Entries: 6 Rep Power: 18	First of all check that you have sufficient RAM. Secondly, use a one-dimensional array. If it still does not work, then you probably need more RAM.