Array is too large to handle

Array is too large to handle

[Nils Wagner]

Dear all,

I wonder if there exits an upper limit for double precision arrays in
FORTRAN (g77).
Please can you inform me about possible reasons for this restriction
(hardware, memory, gcc version, ...)

Regards,

           Nils

Re: Array is too large to handle

[Toon Moene]

Nils Wagner wrote:

> I wonder if there exits an upper limit for double precision arrays in
> FORTRAN (g77).
> Please can you inform me about possible reasons for this restriction
> (hardware, memory, gcc version, ...)

On 32-bit targets, until GCC/g77 version 3.1, the limit was 2**32 bits, 
which is 2**26 DOUBLE PRECISION values, or around 65 million.

 From GCC/g77-3.1 onwards, the limit is 2**31 bytes, which means around 
262 million DOUBLE PRECISION values.  The latter limit is due to the 
fact that on 32-bit targets, signed integers used in offset calculations 
cannot be larger than 2**31-1.

Hope this helps,

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