mpirun detected that one or more processes exited with non-zero status

[香柏树]

在应用pisoFoam计算燃烧室冷态流场时出现下面错误，而且每次都是计算一段时间后才出现。请问大家遇见过这个问题么?具体该怎么解决呢？
PS：本人目前应用的360核进行并行计算，目前已经排除了时间步长的问题。附图为log中的迭代错误，附件txt文件为err详细信息。

3d5xbc-err.txt

[香柏树]

我用的是OpenFOAM-8

[李东岳]

看起来就是矩阵求解发散了。你试试单核？或者少点核数试试一下

[香柏树]

@李东岳 感谢李老师的回复，少点核数（240核）的我也用了，错误还在。单核的计算不动，就没试过。

[李东岳]

那就是发散了。pisofoam很稳定。估计边界条件没弄好

[香柏树]

@李东岳 我试着调下边界条件看看

[HITSC30]

@香柏树 朋友，这个问题处理掉了吗。我的算例在计算时也出现这样的报错了。报错内容如下：

Primary job  terminated normally, but 1 process returned
a non-zero exit code. Per user-direction, the job has been aborted.
--------------------------------------------------------------------------
--------------------------------------------------------------------------
mpirun noticed that process rank 5 with PID 0 on node hpws09 exited on signal 8 (Floating point exception).

[香柏树]

@hitsc30 没有解决，一直出现这个错误。

[HITSC30]

@香柏树 我出现的问题是这样

[HITSC30]

@香柏树 那算是停滞不前了，算不下去了吧？

[香柏树]

@hitsc30 对 只能断断续续算 还在解决中。看你的错误好像是浮点溢出引起的。

[HITSC30]

@香柏树 这个有解决办法吗，我这个就是最后十几步出现了库郎数异常的现象

[tonysoton]

看样子你用的是HPC，先减少点processor试试。我之前用太多core也出现过类似问题，或者就是某个variable diverge :)

[香柏树]

@hitsc30 我最近参考这个链接：https://www.cnblogs.com/Xiwang-Sun/p/14911339.html 改了下压力求解格式，在使用下图参数的时候，今天早上错误消失了。你可以尝试下看看

[香柏树]

@tonysoton 感谢！原先尝试过240核，也是报错。今早改变压力求解格式没问题了。

[HITSC30]

@香柏树 感谢！

[hachikoi]

https://cfd-china.com/user/香柏树
请问您是重新计算 还是只计算最新几步的结果
我删除了最后几个时间步 重新计算 依旧迭代不出来

PIMPLE: iteration 1
Updating StokesI wave model for patch inlet
smoothSolver:  Solving for alpha.water, Initial residual = 2.85603060095e-08, Final residual = 1.44420404532e-10, No Iterations 1
Phase-1 volume fraction = 0.66661826176  Min(alpha.water) = -5.22905791777e-10  Max(alpha.water) = 1.00014678682
MULES: Correcting alpha.water
MULES: Correcting alpha.water
Phase-1 volume fraction = 0.66661826176  Min(alpha.water) = -5.22905791774e-10  Max(alpha.water) = 1.00014678682
Updating shallowWaterAbsorption wave model for patch outlet
GAMGPCG:  Solving for p_rgh, Initial residual = 0.833496905521, Final residual = 5.36596999747e-06, No Iterations 9
GAMGPCG:  Solving for p_rgh, Initial residual = 0.748404838772, Final residual = 4.322497918e-06, No Iterations 9
time step continuity errors : sum local = 6.40365228609e-12, global = -3.66804749067e-13, cumulative = 2.06361704946e-05
GAMGPCG:  Solving for p_rgh, Initial residual = 0.804959354481, Final residual = 4.4360097837e-06, No Iterations 9
GAMGPCG:  Solving for p_rgh, Initial residual = 0.834220247626, Final residual = 4.86674559877e-06, No Iterations 9
time step continuity errors : sum local = 2.88518833016e-11, global = -4.33468036047e-13, cumulative = 2.06361700612e-05
smoothSolver:  Solving for omega, Initial residual = 8.63899230563e-07, Final residual = 4.28995095404e-10, No Iterations 2
smoothSolver:  Solving for k, Initial residual = 4.09430928447e-06, Final residual = 1.30320142023e-09, No Iterations 2
ExecutionTime = 232.9 s  ClockTime = 234 s

Courant Number mean: 5.31856748554e-06 max: 6.80956597246
Interface Courant Number mean: 4.94232067864e-07 max: 6.80956597246
deltaT = 2.06579061066e-06
Time = 67.1303

PIMPLE: iteration 1
Updating StokesI wave model for patch inlet
smoothSolver:  Solving for alpha.water, Initial residual = 1.69468041505e-08, Final residual = 5.40084448828e-11, No Iterations 1
Phase-1 volume fraction = 0.666618261841  Min(alpha.water) = -4.88357838579e-10  Max(alpha.water) = 1.00014678669
MULES: Correcting alpha.water
MULES: Correcting alpha.water
Phase-1 volume fraction = 0.666618261841  Min(alpha.water) = -4.88070715976e-10  Max(alpha.water) = 1.00014678669
Updating shallowWaterAbsorption wave model for patch outlet
GAMGPCG:  Solving for p_rgh, Initial residual = 0.856084241578, Final residual = 3.91327711378e-06, No Iterations 9
GAMGPCG:  Solving for p_rgh, Initial residual = 0.729556404756, Final residual = 4.52724813344e-06, No Iterations 9
time step continuity errors : sum local = 4.23132086572e-12, global = -1.39652678751e-13, cumulative = 2.06361699215e-05
GAMGPCG:  Solving for p_rgh, Initial residual = 0.824421265103, Final residual = 5.74632165117e-06, No Iterations 9
GAMGPCG:  Solving for p_rgh, Initial residual = 0.858181339411, Final residual = 6.32297321249e-06, No Iterations 9
time step continuity errors : sum local = 2.37161385914e-11, global = -7.86308500369e-13, cumulative = 2.06361691352e-05
smoothSolver:  Solving for omega, Initial residual = 5.2565171788e-07, Final residual = 3.49278374392e-09, No Iterations 1
smoothSolver:  Solving for k, Initial residual = 2.66135012542e-06, Final residual = 7.33859698627e-11, No Iterations 2
ExecutionTime = 257.81 s  ClockTime = 259 s

Courant Number mean: 3.23080344243e-06 max: 4.63861488263
Interface Courant Number mean: 2.53529659665e-07 max: 4.63861488263
deltaT = 4.45346458291e-07
Time = 67.1303

PIMPLE: iteration 1
Updating StokesI wave model for patch inlet
smoothSolver:  Solving for alpha.water, Initial residual = 1.28408799391e-08, Final residual = 1.08364680021e-11, No Iterations 1
Phase-1 volume fraction = 0.666618261848  Min(alpha.water) = -4.66529651265e-10  Max(alpha.water) = 1.00014678621
MULES: Correcting alpha.water
MULES: Correcting alpha.water
Phase-1 volume fraction = 0.666618261848  Min(alpha.water) = -4.66080169839e-10  Max(alpha.water) = 1.00014678621
Updating shallowWaterAbsorption wave model for patch outlet
GAMGPCG:  Solving for p_rgh, Initial residual = 0.876222984413, Final residual = 4.82480308588e-06, No Iterations 9
GAMGPCG:  Solving for p_rgh, Initial residual = 0.76986420467, Final residual = 5.12962944087e-06, No Iterations 9
time step continuity errors : sum local = 4.52648844462e-12, global = -1.38478426638e-13, cumulative = 2.06361689967e-05
GAMGPCG:  Solving for p_rgh, Initial residual = 0.845759428026, Final residual = 5.01065970515e-06, No Iterations 9
GAMGPCG:  Solving for p_rgh, Initial residual = 0.874705259624, Final residual = 4.63805995333e-06, No Iterations 9
time step continuity errors : sum local = 1.00680418755e-11, global = -1.63755700805e-13, cumulative = 2.0636168833e-05
smoothSolver:  Solving for omega, Initial residual = 2.70184710423e-07, Final residual = 2.50452634116e-10, No Iterations 1
smoothSolver:  Solving for k, Initial residual = 1.28659289894e-06, Final residual = 1.3294530894e-09, No Iterations 1
ExecutionTime = 282.65 s  ClockTime = 284 s

[feergd]

@HITSC30 你好，请问你这个问题解决了嘛？我也遇到了和你一样的报错。