Scheduled Downtime
On Tuesday 24 October 2023 @ 5pm MT the forums will be in read only mode in preparation for the downtime. On Wednesday 25 October 2023 @ 5am MT, this website will be down for maintenance and expected to return online later in the morning.
Normal Operations
The forums are back online with normal operations. If you notice any issues or errors related to the forums, please reach out to help@ucar.edu

MPI error when running CESM

Dear all,when i port and run CESM1_0_4 on our local machine, an error with mpi is reported. several MPI type(MPI or Openmpi) and version(v1.2.8 and v1.7.1) are tried, and the error occured the same.here is my software information:Fortran compiler: Intel compiler v.11.1
MPI: OpenMPI v1.7.1and the case information:./create_newcase -case ~/cesm.run/test -compset X -res f19_g16After successfully build the model, the job was submitted with default ntasks number:mpirun -np 16 ./ccsm.exeand the error reported as :m_GlobalSegMap::initp_: non-positive value of ngseg error, stat =0
000.MCT(MPEU)::die.: from m_GlobalSegMap::initp_()
application called MPI_Abort(MPI_COMM_WORLD, 2) - process 0
In: PMI_Abort(2, application called MPI_Abort(MPI_COMM_WORLD, 2) - process 0)......Does anyone have any ideas on what may be wrong?Thanks ahead!
 

jedwards

CSEG and Liaisons
Staff member
Please try a supported version of the model - cesm1_0_5 or cesm1_1_1 or cesm1_2_0 and let us know if the problem sitll occurs.    Also your intel compiler version is quite old, you might try to update to a 13.x version of the compiler.  
 
Top