problems with opening unformatted direct file.

[Arlindo da Silva]

On Sat, Jun 28, 2008 at 1:44 AM, lantao sun <lantaosun at gmail.com> wrote:

> Dear all,
>
> I write a simple file in FORTRAN by:
>        open (51,file='uwind.dat',form='unformatted,
> access='direct',recl=2001*2001*4)


Which Fortran compiler are you using? The units for specifying the RECL was
system dependent before Fortran 90 (could be in bytes or words); with f90
the units are words (4 bytes). I suspect you are using f90, in which case
the RECL above is wrong (try recl=2001*2001), having a "gap" (read:junk
values) right after the rad variable. You can verify this by checking the
size of your resulting file; the correct size is 2001*2001*4 bytes.

    Arlindo


--
Arlindo da Silva
dasilva at alum.mit.edu
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