CFD-DEM error

- March 7, 2023 at 1:41 pm
  
  fatemeh.hosseini
  Subscriber
  
  Hello every body,
  I coupled EDEM and Fluent together. It initially performed well. The error happened after 11400 iterations:
  
  59: MPT_host_to_node_char: error: Failed to allocate 333031200 bytes (..\..\src\locate_particles.c:159)!: Not enough space
  Fatal error in PMPI_Bcast: Invalid buffer pointer, error stack:
  PMPI_Bcast(2667): MPI_Bcast(buf=0000000000000000, count=333031200, MPI_CHAR, root=0, comm=0x84000002) failed
  PMPI_Bcast(2636): Null buffer pointer
  [mpiexec@UL-4XJFH73] ..\hydra\utils\sock\sock.c (420): write error (Unknown error)
  send of 23 bytes failed.
  [mpiexec@UL-4XJFH73] ..\hydra\utils\launch\launch.c (121): shutdown failed, sock 644, error 10093
  The fl process could not be started.
  (Please refer to the attached file)
  The simulation is located in the 167 gigabyte-free deive D.
  I used 80 of the system's 96 cores for simulation.
  Could you please guide me in this field?
  
  Regards,
  Fatemeh
- March 7, 2023 at 4:15 pm
  
  Rob
  Ansys Employee
  
  Are you using the EDEM coupling UDFs? The error suggests you've run out of RAM rather than disc space.

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