Learning Forum

[Atish Gawale]

Hi,

I am running simulation with mpp d r14.0 LS-Dyna solver using open MPI platform on HPC. I specified NCPU 128, but when I check my output file it shows 

MPI execution with 1 procs. Can you please help to resolve this query?

Regards,
Atish

 

[igandiko]

NCPU is used for SMP and Hybrid solvers. The correct command to run MPP LS-DYNA is,

/path/mpirun -np 128 /path/ls-dyna.exe i= input.k

If 128 MPI ranks are on different hosts, you may need a file with a list of hosts. Please see here for more information (https://ftp.lstc.com/anonymous/outgoing/support/FAQ/mpp.getting_started). 

 

[Atish Gawale]

Hi,

I am running fluid analysis using CESE solver.

I am able to use higher processor now. I ran with 16 processors and I get following error.

With MPP_D and 1 processor there is no error. with higher processors I get following error.

mes0000

No elements with calculated timesteps

       1 t 0.0000E+00 dt 2.22E-09 flush i/o buffers            08/21/24 13:46:17

       1 t 0.0000E+00 dt 2.22E-09 write d3plot file            08/21/24 13:46:17

 

 *** Error 100116 (CESE+116) (processor # 0)

       20959704 errors detected in CESE solver during step = 1

 

 *** Error 100117 (CESE+117) (processor # 0)

              1 of these CESE solver errors detected on processor # 0

 

 *** Error 100118 (CESE+118) (processor # 0)

     Errors detected in CESE solver integration step.

     Please check each processor's message file for details.

 

 When error termination was triggered, this processor was

 past the output routines

 

mes0001 - to mes 0015 i got following error.

 

No elements with calculated timesteps
 
 *** Error 150209 (CHEM+209)
     Chemistry EOS nonlinear temperature solver failed to converge.
     Error code = 50 Last iterate temperature = NaN

 

Do I need to include any control cards for MPP (*CONTROL_MPP_XXXXX)? 

 

Regards,
Atish