FW: Question concerning move from 32bit to 64bit Fortran Code

[Navarro, Sylvia]

 -----Original Message-----
From: 	Navarro, Sylvia  
Sent:	Tuesday, November 01, 2005 2:59 PM
To:	'gcc@gcc.gnu.org'
Subject:	Question concerning move from 32bit to 64bit Fortran
Code

I am currently using RedHatLinux4.0, which comes with gcc4.02 on an HP
Opteron and also using g95 (instead of gfortran, due to our algorithm
house).  
'uname -a' produces:
Linux gamma0019 2.6.9-22.ELsmp #1 SMP Mon Sep 19 18:00:54 EDT 2005
x86_64 x86_64 x86_64 GNU/Linux

I have received Fortran/C code that works perfectly on an HPi386 (when
using a flag of '-fendian=big', due to the nature of the input file).
Upon trying to compile and run the program on the Opteron, I run into
Fortran I/O errors.  When using the '-fendian =big', the error reads:

[snavarro@gamma0019 hes-version-1.1]$ bin/hesCC
etc/alg_directives.rp.goes  etc/alg_directives.rp.goes  Regression
Retrieval Turned On  IR Sensor Physical Retrieval Turned On  call
getsolar  solar function not used  call getod At line 160 of file
oss_ir_module.f90 (Unit 50
"src/hes/database/oss/linux/selGOES_650-2250.flt.cmpr.swap  ")
Traceback: (Innermost first)
   Called from line 85 of file oss_ir_module.f90
   Called from line 183 of file f90/ooRETR.f90
   Called from line 14 of file f90/fcalls.f90
Fortran runtime error: Reading more data than the record size (RECL)

If I swich the flag to read '-fendian=little', I get a different error: 

[snavarro@gamma0019 hes-version-1.1]$ bin/hesCC
etc/alg_directives.rp.goes  etc/alg_directives.rp.goes  Regression
Retrieval Turned On  IR Sensor Physical Retrieval Turned On  call
getsolar  solar function not used  call getod At line 160 of file
oss_ir_module.f90 (Unit 50
"src/hes/database/oss/linux/selGOES_650-2250.flt.cmpr.swap  ")
Traceback: (Innermost first)
   Called from line 85 of file oss_ir_module.f90
   Called from line 183 of file f90/ooRETR.f90
   Called from line 14 of file f90/fcalls.f90
Fortran runtime error: Corrupt record in unformatted sequential-access
file

I have looked at the g95 manual and found no help there.  I stumbled
across your help forum (topic: Re: 64 bit fortran unformatted on Opteron
-- incompatible with32unformatted) during a search on Google.

I have read the 6 postings concerning this exact issue.  Can you
re-explain how one would go about fixing or working around this problem?

Thank you,
Sylvia Navarro
Software Engineer
HARRIS Corp 
GCSD Civil BU
R5, A115F
321-309-7350

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