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-   -   MPI_Recv process in local group is dead rank 44 MPI_COMM_WORLD (http://www.cfd-online.com/Forums/openfoam-solving/60356-mpi_recv-process-local-group-dead-rank-44-mpi_comm_world.html)

sampaio January 9, 2006 10:43

Hi all, After a few number of
 
Hi all,
After a few number of iterations, my simulation stops with this message.

I am running a 2.5 million control volumes case in 48 processor (750MB Ram each)

Do you know how to repair/what is the cause?

I decomposed in another machine (with 4GB RAM) and then scp the decomposed case to this one.

the output file read:

Time = 0.00125


Max Courant Number = 0.162097
BICCG: Solving for k, Initial residual = 0.0252662, Final residual = 7.25462e-07, No Iterations 2
BICCG: Solving for Ux, Initial residual = 9.16271e-05, Final residual = 3.19526e-07, No Iterations 1
BICCG: Solving for Uy, Initial residual = 0.00159127, Final residual = 1.23897e-06, No Iterations 1
BICCG: Solving for Uz, Initial residual = 0.0123158, Final residual = 4.48798e-06, No Iterations 1
ICCG: Solving for p, Initial residual = 0.0359652, Final residual = 3.57801e-05, No Iterations 617
ICCG: Solving for p, Initial residual = 0.00012855, Final residual = 9.90082e-07, No Iterations 294
ICCG: Solving for p, Initial residual = 1.62303e-05, Final residual = 9.92865e-07, No Iterations 46
time step continuity errors : sum local = 5.49197e-13, global = -1.91417e-14, cumulative = 4.47138e-13
ICCG: Solving for p, Initial residual = 0.000545582, Final residual = 9.9692e-07, No Iterations 254
ICCG: Solving for p, Initial residual = 2.34555e-06, Final residual = 9.81231e-07, No Iterations 6
ICCG: Solving for p, Initial residual = 1.23911e-06, Final residual = 7.49233e-07, No Iterations 3
time step continuity errors : sum local = 4.14559e-13, global = 4.59555e-14, cumulative = 4.93094e-13
ExecutionTime = 562.55 s

Time = 0.0015


Max Courant Number = 0.163235
BICCG: Solving for k, Initial residual = 0.0203369, Final residual = 6.03288e-07, No Iterations 2
MPI_Recv: process in local group is dead (rank 44, MPI_COMM_WORLD)
MPI_Recv: process in local group is dead (rank 47, MPI_COMM_WORLD)
MPI_Recv: process in local group is dead (rank 46, MPI_COMM_WORLD)


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