[MITgcm-support] linux_amd64_ifort+mpi_ice_nas

[Holly Dail]

I've resolved this problem with the opt file ... here's what I learned:

- the new fPIC / shared-intel approach in linux_amd64_ifort+mpi_ice_nas is a more flexible way to allow compilation of large binaries than the old -mcmodel medium approach.  The two are incompatible, so the last three lines of the opt file that tell the user to use -mcmodel medium are incorrect.  (Should be deleted?)

- With shared libraries the appropriate modules must be loaded, but I had an error in my submission script that tried to load non-existent comp/intel/11.1.046 instead of comp-intel/11.1.046.  Oops.

Holly

On Nov 10, 2010, at Nov 10 , 9:52 AM, Holly Dail wrote:

> Hello -
> 
> The recent changes to linux_amd64_ifort+mpi_ice_nas have caused problems for me when running on pleiades, and I thought I'd mention them in case they affect others.  Perhaps there are things I need to change in my setup to use the new optfile, but if so, I'm not sure what.  For the moment I'm running fine with the checkpoint 62j version.
> 
> Here is the error I get with the new optfile:
> 
> MPI: r87i3n14: 0x585200004c9a426e: ./mitgcmuv: error while loading shared librar
> ies: libintlc.so.5: cannot open shared object file: No such file or directory
> MPI: r91i2n10: 0x585200004c9a426e: ./mitgcmuv: error while loading shared librar
> ies: libintlc.so.5: cannot open shared object file: No such file or directory
> MPI: could not run executable (case #4)
> 
> Here is the diff on the two files ... not sure if its the fPIC or the -shared-intel that is the problem.  
> 
> < # $Header: /u/gcmpack/MITgcm/tools/build_options/linux_amd64_ifort+mpi_ice_nas,v 1.4 2010/07/30 06:21:33 dimitri Exp $
> < # $Name: checkpoint62j $
> ---
>> # $Header: /u/gcmpack/MITgcm/tools/build_options/linux_amd64_ifort+mpi_ice_nas,v 1.6 2010/10/26 19:32:04 heimbach Exp $
>> # $Name:  $
> 17a18,19
>> CFLAGS='-fPIC'
>> LDADD='-shared-intel'
> 26c28
> < NOOPTFLAGS='-O0'
> ---
>> NOOPTFLAGS='-O0 -fPIC'
> 30c32
> <     FFLAGS="$FFLAGS -w95 -W0 -WB -convert big_endian -assume byterecl -align"
> ---
>>    FFLAGS="$FFLAGS -fPIC -w95 -W0 -WB -convert big_endian -assume byterecl -align"
> 32c34
> <     FFLAGS="$FFLAGS -w95 -W0 -WB -convert big_endian -assume byterecl -noalign"
> ---
>>    FFLAGS="$FFLAGS -fPIC -w95 -W0 -WB -convert big_endian -assume byterecl -noalign"
> 
> Cheers -
> Holly
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