I was running the example bstep2d.cpp and got a warning message.
[LatticeStatistics] step=0; t=0; uMax=1.49167e-154; avEnergy=0; avRho=1
Warning: empty cb range [0:0], adjusting to [-1:1]
[SuperPlaneIntegralFluxVelocity2D] regionSize[m]=1.46667; flowRate[m^2/s]=0; meanVelocity[m/s]=0
Please suggest me why I could be getting this message.
it’s the number of cuboids, in which we distribute our domain for parallel execution. In order to get a deeper insight into OpenLB I can recommend to attend the upcoming Spring School: https://www.openlb.net/spring-school-2021/