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Problem to run OpenMP/MPI hybrid on case ne120_t12

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wei.huang2@...
Problem to run OpenMP/MPI hybrid on case ne120_t12

Hello there,

I am trying to run CESm1.2.2.1 with case ne120_t12.

I have lnd model uses 360 MPI tasks, ice 720, and ocn 360, then set OMP_NUM_THREADS=2.

When I run it, I got error:

 

 Warning: Departure points out of bounds in remap

 my_task, i, j =         541           5          19

 dpx, dpy =  -26.2273426325629        5891.85314100767

 HTN(i,j), HTN(i+1,j) =   3890.42157100753        3894.98816049952

 HTE(i,j), HTE(i,j+1) =   3788.50188375742        3786.49589919537

 istep1, my_task, iblk =           1         541           3

 Global block:       10961

 Global i and j:         404        2298

(shr_sys_abort) ERROR: remap transport: bad departure points

(shr_sys_abort) WARNING: calling shr_mpi_abort() and stopping

application called MPI_Abort(MPI_COMM_WORLD, 1001) - process 901

 

 Warning: Departure points out of bounds in remap

 my_task, i, j =         627          26          20

 dpx, dpy =   5653.99189425681        23.1312094799313

 HTN(i,j), HTN(i+1,j) =   3553.09642109926        3558.88556378382

 HTE(i,j), HTE(i,j+1) =   3347.88520022242        3346.32650895058

 istep1, my_task, iblk =           1         627           4

 Global block:       11102

 Global i and j:         350        2329

(shr_sys_abort) ERROR: remap transport: bad departure points

(shr_sys_abort) WARNING: calling shr_mpi_abort() and stopping

application called MPI_Abort(MPI_COMM_WORLD, 1001) - process 987

 

It works fine with OMP_NUM_THREADS=1, and lnd 720, ice 1440, and ocn 720 cores.

 

Could you please help me fix this problem?

 

Thanks,

 

Wei

 

 

Wei Huang

zdliu@...

adjust the ice dynamics timestepxn:dt_dyn

Zedong LIU
OUC & QNLM
Email:zdliu@ouc.edu.cn

wei.huang2@...

Actually, adjust the ice dynamics timestep sndt_dyn did not make much sens, as the code runs fine with OMP_NUM_THREADS=1.

It is more related to some env. variable setup, not CFL valiation.

Wei Huang

wei.huang2@...

in namelist_defaults_cice.xml, there is:

<xndt_dyn                   > 1.0 </xndt_dyn>

<xndt_dyn hgrid="tx0.1v2"   > 3.0 </xndt_dyn>

How shoud we adjust them?

 

 

Wei Huang

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