[vivek05]

Hi ,
I am using interFoam solver for VOF simulation. My simulation runs smoothly upto time =6e-06 , after that time step started reducing drastically. Then i switched to adjustable time step no; from yes. Could someone help to find the error ?

PHP Code:

1984435 Courant Number mean: 0.0161308 max: 0.428795
1984436 Interface Courant Number mean: 0.00502822 max: 0.376517
1984437 Time = 6.86595e-06
1984438 
1984439 PIMPLE: iteration 1
1984440 MULES: Solving for alpha.water
1984441 MULES: Solving for alpha.water
1984442 Phase-1 volume fraction = 0.0245366  Min(alpha.water) = -0.0318819  Max(alpha.water) = 1
1984443 smoothSolver:  Solving for Ux, Initial residual = 0.00103917, Final residual = 7.09268e-10, No Iterations 3
1984444 smoothSolver:  Solving for Uy, Initial residual = 0.000917934, Final residual = 5.25313e-10, No Iterations 3
1984445 smoothSolver:  Solving for Uz, Initial residual = 0.00103055, Final residual = 6.19555e-10, No Iterations 3
1984446 GAMG:  Solving for p_rgh, Initial residual = 0.00335877, Final residual = 0.000126048, No Iterations 1
1984447 [10] #0  Foam::error::printStack(Foam::Ostream&)--------------------------------------------------------------------------
1984448 A process has executed an operation involving a call to the
1984449 "fork()" system call to create a child process.  Open MPI is currently
1984450 operating in a condition that could result in memory corruption or
1984451 other system errors; your job may hang, crash, or produce silent
1984452 data corruption.  The use of fork() (or system() or other calls that
1984453 create child processes) is strongly discouraged.
1984454 
1984455 The process that invoked fork was:
1984456 
1984457   Local host:          [[48898,1],10] (PID 17329)
1984458 
1984459 If you are *absolutely sure* that your application will successfully
1984460 and correctly survive a call to fork(), you may disable this warning
1984461 by setting the mpi_warn_on_fork MCA parameter to 0.
1984462 --------------------------------------------------------------------------
1984463 [hpc789:51926] *** Process received signal ***
1984464 [hpc789:51926] Signal: Segmentation fault (11)
1984465 [hpc789:51926] Signal code: Address not mapped (1)
1984466 [hpc789:51926] Failing at address: 0x20d7538
1984467 [hpc789:51926] [ 0] /lib64/libc.so.6(+0x35670)[0x2ada8be6b670]
1984468 [hpc789:51926] [ 1] /lib64/libc.so.6(+0x7dda0)[0x2ada8beb3da0]
1984469 [hpc789:51926] [ 2] /home/ssvivek/OpenFOAM/ThirdParty-5.0/platforms/linux64/gcc-4.8.5/lib64/libstdc++.so.6(_Znwm+0x1d)[0x2ada8b679ecd]
1984470 [hpc789:51926] [ 3] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam5error10printStackERNS_7OstreamE+0x3b)[0x2ada8b020dab]
1984471 [hpc789:51926] [ 4] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sigSegv10sigHandlerEi+0x30)[0x2ada8b0147f0]
1984472 [hpc789:51926] [ 5] /lib64/libc.so.6(+0x35670)[0x2ada8be6b670]
1984473 [hpc789:51926] [ 6] /lib64/libc.so.6(__libc_fork+0x128)[0x2ada8bef3578]
1984474 [hpc789:51926] [ 7] /lib64/libc.so.6(_IO_proc_open+0xbc)[0x2ada8bea2f9c]
1984475 [hpc789:51926] [ 8] /lib64/libc.so.6(popen+0x5c)[0x2ada8bea322c]
1984476 [hpc789:51926] [ 9] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam5pOpenERKNS_6stringEi+0x4b)[0x2ada8b01f42b]
1984477 [hpc789:51926] [10] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam22printSourceFileAndLineERNS_7OstreamERKNS_8fileNameEP7Dl_infoPv+0x        15a)[0x2ada8b01f7aa]
1984478 [hpc789:51926] [11] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam5error10printStackERNS_7OstreamE+0xc2)[0x2ada8b020e32]
1984479 [hpc789:51926] [12] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam6sigFpe10sigHandlerEi+0x30)[0x2ada8b0137e0]
1984480 [hpc789:51926] [13] /lib64/libc.so.6(+0x35670)[0x2ada8be6b670]
1984481 [hpc789:51926] [14] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver5scaleERNS_5FieldIdEES3_RKNS_9lduMatrixERKNS_10FieldFi        eldIS1_dEERKNS_8UPtrListIKNS_17lduInterfaceFieldEEERKS2_h+0xb6)[0x2ada8ada7526]
1984482 [hpc789:51926] [15] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver6VcycleERKNS_7PtrListINS_9lduMatrix8smootherEEERNS_5Fi        eldIdEERKS8_S9_S9_S9_S9_S9_RNS1_IS8_EESD_h+0xe81)[0x2ada8adab991]
1984483 [hpc789:51926] [16] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver5solveERNS_5FieldIdEERKS2_h+0x49b)[0x2ada8adad47b]
1984484 [hpc789:51926] [17] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x11e)[0x2ada8        879026e]
1984485 [hpc789:51926] [18] interFoam(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x108)[0x49dbd8]
1984486 [hpc789:51926] [19] interFoam[0x43fa0d]
1984487 [hpc789:51926] [20] /lib64/libc.so.6(__libc_start_main+0xf5)[0x2ada8be57b15]
1984488 [hpc789:51926] [21] interFoam[0x4447d9]
1984489 [hpc789:51926] *** End of error message ***
1984490  addr2line failed
1984491 [10] #1  Foam::sigFpe::sigHandler(int)[hpc789:51929] *** Process received signal ***
1984492 [hpc789:51929] Signal: Segmentation fault (11)
1984493 [hpc789:51929] Signal code: Address not mapped (1)
1984494 [hpc789:51929] Failing at address: 0x20d7538
1984495 [hpc789:51929] [ 0] /lib64/libc.so.6(+0x35670)[0x2ada8be6b670]
1984496 [hpc789:51929] [ 1] /lib64/libc.so.6(+0x7dda0)[0x2ada8beb3da0]
1984497 [hpc789:51929] [ 2] /home/ssvivek/OpenFOAM/ThirdParty-5.0/platforms/linux64/gcc-4.8.5/lib64/libstdc++.so.6(_Znwm+0x1d)[0x2ada8b679ecd]
1984498 [hpc789:51929] [ 3] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam5error10printStackERNS_7OstreamE+0x3b)[0x2ada8b020dab]
1984499 [hpc789:51929] [ 4] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sigSegv10sigHandlerEi+0x30)[0x2ada8b0147f0]
1984500 [hpc789:51929] [ 5] /lib64/libc.so.6(+0x35670)[0x2ada8be6b670]
1984501 [hpc789:51929] [ 6] /lib64/libc.so.6(__libc_fork+0x128)[0x2ada8bef3578]
1984502 [hpc789:51929] [ 7] /lib64/libc.so.6(_IO_proc_open+0xbc)[0x2ada8bea2f9c]
1984503 [hpc789:51929] [ 8] /lib64/libc.so.6(popen+0x5c)[0x2ada8bea322c]
1984504 [hpc789:51929] [ 9] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam5pOpenERKNS_6stringEi+0x4b)[0x2ada8b01f42b]
[hpc789:51929] [10] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam22printSourceFileAndLineERNS_7OstreamERKNS_8fileNameEP7Dl_infoPv+0x        15a)[0x2ada8b01f7aa]
1984506 [hpc789:51929] [11] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam5error10printStackERNS_7OstreamE+0xc2)[0x2ada8b020e32]
1984507 [hpc789:51929] [12] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam6sigFpe10sigHandlerEi+0x30)[0x2ada8b0137e0]
1984508 [hpc789:51929] [13] /lib64/libc.so.6(+0x35670)[0x2ada8be6b670]
1984509 [hpc789:51929] [14] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver5scaleERNS_5FieldIdEES3_RKNS_9lduMatrixERKNS_10FieldFi        eldIS1_dEERKNS_8UPtrListIKNS_17lduInterfaceFieldEEERKS2_h+0xb6)[0x2ada8ada7526]1984510 [hpc789:51929] [15] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver6VcycleERKNS_7PtrListINS_9lduMatrix8smootherEEERNS_5Fi        eldIdEERKS8_S9_S9_S9_S9_S9_RNS1_IS8_EESD_h+0xe81)[0x2ada8adab991]
1984511 [hpc789:51929] [16] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver5solveERNS_5FieldIdEERKS2_h+0x49b)[0x2ada8adad47b]1984512 [hpc789:51929] [17] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x11e)[0x2ada8        879026e]
1984513 [hpc789:51929] [18] interFoam(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x108)[0x49dbd8]1984514 [hpc789:51929] [19] interFoam[0x43fa0d]
1984515 [hpc789:51929] [20] /lib64/libc.so.6(__libc_start_main+0xf5)[0x2ada8be57b15]
1984516 [hpc789:51929] [21] interFoam[0x4447d9]
1984506 [hpc789:51929] [11] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam5error10printStackERNS_7OstreamE+0xc2)[0x2ada8b020e32]
1984507 [hpc789:51929] [12] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam6sigFpe10sigHandlerEi+0x30)[0x2ada8b0137e0]
1984508 [hpc789:51929] [13] /lib64/libc.so.6(+0x35670)[0x2ada8be6b670]
1984509 [hpc789:51929] [14] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver5scaleERNS_5FieldIdEES3_RKNS_9lduMatrixERKNS_10FieldFi        eldIS1_dEERKNS_8UPtrListIKNS_17lduInterfaceFieldEEERKS2_h+0xb6)[0x2ada8ada7526]
1984510 [hpc789:51929] [15] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver6VcycleERKNS_7PtrListINS_9lduMatrix8smootherEEERNS_5Fi        eldIdEERKS8_S9_S9_S9_S9_S9_RNS1_IS8_EESD_h+0xe81)[0x2ada8adab991]
1984511 [hpc789:51929] [16] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam10GAMGSolver5solveERNS_5FieldIdEERKS2_h+0x49b)[0x2ada8adad47b]
1984512 [hpc789:51929] [17] /home/ssvivek/OpenFOAM/OpenFOAM-5.0/platforms/linux64Gcc48DPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x11e)[0x2ada8        879026e]
1984513 [hpc789:51929] [18] interFoam(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x108)[0x49dbd8]
1984514 [hpc789:51929] [19] interFoam[0x43fa0d]
1984515 [hpc789:51929] [20] /lib64/libc.so.6(__libc_start_main+0xf5)[0x2ada8be57b15]
1984516 [hpc789:51929] [21] interFoam[0x4447d9]1984517 [hpc789:51929] *** End of error message ***
1984518  addr2line failed
1984519 [10] #2  ?[hpc789:51931] *** Process received signal ***
1984520 [hpc789:51931] Signal: Segmentation fault (11)
1984521 [hpc789:51931] Signal code: Address not mapped (1)
1984522 [hpc789:51931] Failing at address: 0x20d7538 


Thanks,