Problem with Building and Running

[charan0239@gmail_com]

Hi, Past Few weeks i'm frying to build CAM in standalone mode, facing few problems while doing it,Here i'm writing the procedure i followedUsing CESM1_2_0#######################################################################################################################################################################cd /moes/home/karumuriashok/cesm1_2_0/models/atm/cam/bld./configure -fc mpiifort -fc_type intel -cc mpiicc -dyn fv -hgrid 10x15 -ntasks 16 -nosmp -test -nc_inc /gpfs1/home/Libs/INTEL/NETCDF4/netcdf-4.1.3/include -nc_lib /gpfs1/home/Libs/INTEL/NETCDF4/netcdf-4.1.3/lib -mpi_inc /gpfs1/opt/intel/icsxe/impi/4.1.3.048/intel64/include -mpi_lib /gpfs1/opt/intel/icsxe/impi/4.1.3.048/intel64/libgmake 2>&1 | tee LOG-gmake./build-namelist -test -config /moes/home/karumuriashok/1_charan/cam_1/models/atm/cam/bld/config_cache.xml -csmdata /iitm2/cccr-res/karumuri/ccsm/inputdata./cam 2>&1 | tee LOG#######################################################################################################################################################################When i'm giving a job getting errorsAttached log files, namelist and job script and error files Previously i'm getting a error Read in dyn_fv_inparm namelist from: atm_in Read in spmd_fv_inparm namelist from: atm_in npr_y =            4   npr_z =            4 nprxy_x =            4   nprxy_y =            4 npes =            1   npes_yz=           16   npes_xy =           16(shr_sys_abort) ERROR: SPMD_DYN_SET : incorrect yz domain decomposition - aborting(shr_sys_abort) WARNING: calling shr_mpi_abort() and stoppingapplication called MPI_Abort(MPI_COMM_WORLD, 1001) - process 0 in this case i just added "ntasks 16" to buildnamelist command./build-namelist -test -ntasks 16 -config /moes/home/karumuriashok/1_charan/cam_1/models/atm/cam/bld/config_cache.xml -csmdata /iitm2/cccr-res/karumuri/ccsm/inputdata attached log file for this with npr extentions Please help me to build CAM in stand alone mode  Thank you

 

[eaton]

The problem appears to be with how you are launching the mpi job.  The log output in LOG_npr.txt shows at the very top that CAM is only running in 1 task, e.g.,

(seq_comm_setcomm)  initialize ID (  1 GLOBAL          ) pelist   =     0     0     1 ( npes =     1) ( nthreads =  1)<br /><br />This is not consistent with the namelist setting npr_yz=4,4,4,4<br /><br />Figure out how to launch the job using 16 tasks.  The local systems experts for the machine you are using<br /> should be able to help.<br /><br />

 

[charan0239@gmail_com]

How do i change npes arguments to multiple processors, i'm mentioning ntasks 16 while configuring

 

[eaton]

npes is determined when cam is being initialized (see the spmdinit routine in spmd_utils.F90) by asking mpi how many tasks have been assigned.  That is set by how the job is launched in an mpi environment, and it is system dependent.  A common way to do this is with a command like (assuming 16 tasks are requested):mpirun -np 16 cam > cam.log