UEMS/WRF EMS Unofficial Forums

Hi
I've a problem about ems_run under NMM core.
I'm using f WRF EMS on my notebook since 2009 without problem.
Suddenly the program gives an error when I use the NMM core while under ARW program works correctly.
Below the error message:

• ! Possible problem as system return code was 139
  
  ! Your WRF simulation (PID 31029) returned a exit status of 139, which is never good.
  
  System Signal Code (SN) : 11 (Invalid Memory Reference - Seg Fault)
  
  ! While perusing the log/run_wrfm.log file I determined the following:
  
  It appears that your run failed due to a Segmentation Fault on your
  system. This failure is typically caused when the EMS attempt to access a
  region of memory that has not been allocated. Most often, segmentation
  faults are due to an array bounds error ior accessing memory though a NULL
  pointer. Either way, this is an issue that needs to be corrected by the
  developer.
  
  So, if you want this problem fixed send your log files along with the
  namelist.wrfm and namelist.wps files to Robert.Rozumalski@noaa.gov..., just
  because he cares.
  
  
  ! Here are the last few lines from the run_wrfm.log file:
  
  starting wrf task 0 of 2
  starting wrf task 1 of 2
  
  ===================================================================================
  = BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
  = EXIT CODE: 139
  = CLEANING UP REMAINING PROCESSES
  = YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
  ===================================================================================
  YOUR APPLICATION TERMINATED WITH THE EXIT STRING: Segmentation fault (signal 11)
  This typically refers to a problem with your application.
  Please see the FAQ page for debugging suggestions
  
  
  
  * System information is available in static/ems_system.info

this is the ems_system.info

• Basic System Information for localhost
  
  System Date : Wed Aug 19 10:58:31 2015 UTC
  System Hostname : localhost
  System Address : 127.0.0.1
  
  System OS : Linux
  Linux Distribution : Fedora release 22 (Twenty Two)
  OS Kernel : 4.1.4-200.fc22.i686
  Kernel Type : i686
  
  Processor and Memory Information for localhost
  
  CPU Name : Intel(R) Core(TM)2 Duo CPU P8400 @ 2.26GHz
  CPU Instructions : penryn
  CPU Type : 64-bit
  CPU Speed : 2266 MHz
  
  EMS Determined Processor Count
  Physical CPUs : 1
  Cores per CPU : 2
  Total Processors : 2
  
  Hyper-Threading : Off
  
  System Memory : 2.9 Gbytes
  
  EMS Release Information for localhost
  
  EMS Release : 3.4.1.15.16
  EMS Binaries : x32

this is the link of crash log : http://www.meteo-molassana.info/2015081 ... h_logs.tgz

Have you any idea?
thank you

Check the number of points. For NMM it should be even.

Hi nebojsa
thanks for your suggestion I do confirm that points are even.
Such as reported nothing has been changed before the error occurred. suddenly It's happened.
rodi

rodi wrote:Hi nebojsa
thanks for your suggestion I do confirm that points are even.
Such as reported nothing has been changed before the error occurred. suddenly It's happened.
rodi

And it continues to fail with all new runs? Possibly faulty RAM?

Hi meteoadriatic
WRF-EMS works only with ARW.
The latest time that I used NMM core was 26th July and it worked correctly, After this date it gives the run-time error for NMM core.
No RAM problem appears.
Thanks.
Rodi

Perhaps it is not the case here, but I've noticed a kind of bug in latest EMS (....16) version: during creating NMM in dwiz, shown even number of nested domain points will result with odd number of them in reality and vice versa. It is not case with parent domain.

Best regards!