[MITgcm-support] Error while using both MPI and MNC packages

[Martin Losch]

Hi,
I am guessing that you did not use the “-mpi” flag with genmake2:

genmake2 -mpi [more options]

so that your program is not compiled with MPI and thus does not now anything about more than 1 cpu.
Martin

On May 8, 2014, at 9:24 AM, Sachiko Mohanty <mohantysachiko18 at gmail.com> wrote:

> Hello MITgcm users,
> 
> I am trying to use both multi processors (MPI) and NedCDF (MNC) packages at the same time.
> In code my configuration is :
>  "SIZE.h"
>      &           sNx =  65,
>      &           sNy =  45,
>      &           OLx =   2,
>      &           OLy =   2,
>      &           nSx =   1,
>      &           nSy =   1,
>      &           nPx =   6,
>      &           nPy =   4,
>      &           Nx  = sNx*nSx*nPx,
>      &           Ny  = sNy*nSy*nPy,
>      &           Nr  =  23)
> 
> "packages.conf"
> 
> oceanic
> gfd
> exf
> timeave
> #mdsio
> mnc
> obcs
> 
> In "input" folder. The configuration is
> "data.pkg"
> # Packages
>  &PACKAGES
>  useOBCS=.TRUE.,
>  useEXF=.TRUE.,
>  useMNC=.TRUE.,
>  &
> 
>  "eedata"
>  # Example "eedata" file  for multi-threaded test
> #   (copy "eedata.mth" to "eedata" to use it)
> # Lines beginning "#" are comments
> # nTx - No. threads per process in X
> # nTy - No. threads per process in Y
>  &EEPARMS
>  nTx=1,
>  nTy=1,
>  useMPI=.TRUE.,
>  &
> 
> "data.mnc"
> 
> # Example "data.mnc" file
> # Lines beginning "#" are comments
>  &MNC_01
> # mnc_echo_gvtypes=.FALSE.,
> # mnc_use_indir=.FALSE.,
>  mnc_use_outdir=.TRUE.,
>  mnc_outdir_str='mnc_test_',
> #mnc_outdir_date=.FALSE.,
> #monitor_mnc=.FALSE.,
> #timeave_mnc=.FALSE.,
> #snapshot_mnc=.FALSE.,
> #pickup_read_mnc=.FALSE.,
> #pickup_write_mnc=.FALSE.,
>  &
> 
> 
> I use 24 number of processors . This is the message i get while running the model.
> 
> [dell at localhost input]$ mpirun -np 24 ./mitgcmuv > test
> EEBOOT_MINIMAL: No. of procs=     1 not equal to nPx*nPy=    24
> EEBOOT_MINIMAL: No. of procs=     1 not equal to nPx*nPy=    24
> EEDIE: earlier error in multi-proc/thread setting
> PROGRAM MAIN: ends with fatal Error
> STOP ABNORMAL END: PROGRAM MAIN
> (and this error is repeated for 24 times).
> 
> Please do provide me some suggestions/solutions. 
> 
> Thanking all in advance
> 
> Regards,
> 
> Sachiko Mohanty
> Centre for Atmospheric Sc.
> IIT Delhi, India
> 
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