Dear all,<div> I hope you're having a nice day.</div><div> I'm using PETSc as a beginner. I found it is very easy to find a definition of a function like 'DACreate2d' online and it explains very clearly. However, I think it is really confusing for those explanation of data structures like DMMG, DA, DM and so on, or even Vec. I wonder if there is more details that I can read, like what is inside DMMG. For example, as I see, DM is a part of DMMG. </div>
<div><br></div><div>thanks,</div><div>Alan</div>