问答中心分类: 数值计算物质平衡遇到NaN导致模型不收敛
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blue asked 12月 ago

GEM在做CO2矿化封存时,模型运行报错,具体如下
 Fatal ERROR NaN detected in Material Balance calculations.
Total number of time steps: 51
Total number of Newton cycles: 98
Total number of solver iterations: 3202
Total number of time step cuts: 3
Total number of solver failures: 16
Material Balance Error; Weighted by OrigMatInPlace+Inj: NaN %
Solver/CPUs/threads/nlv1ca/cdir/dplanes/host: PARASOL/ 36/ 25/ 8/ I/ 0/DESKTOP-14GOHLG
Implicitness, average/peak: 67.9731 %/ 100 %
Memory usage, average/peak/vm size: 126 MB/ 160 MB/ 181 MB
KMP_AFFINITY: not set
OMP_SCHEDULE: STATIC
Hyperthreading: ON ( CPUs: Physical 18; Logical 36 )
** Attention: Attempt to use hyper threads – expect poor run-time. **
Date and time at end of run: 2023-May-18 15:11:16
CPU second(s) used: 460.734375
Elapsed second(s): 18.598
请问应该怎么解决,从哪里入手?

1 Answers
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wangjianguo 管理员 answered 10月 ago

推荐在Numerical部分使用AUTOTUNE关键字。

CCUS_UPC replied 9月 ago

GEM中没有AUTOTUNE关键字,该怎么办呢?