How to set solver's parameters to eliminate isolated equations' effect?
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- Cuda
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Description
Hello,
In CFD simulation, there are solid and liquid regions. When solving pressure or velocity fields, the solid region equations are set to isolated form (A(i,i)=1, b(i)=0) when assembling the control matrix. Do these isolated solid region equations affect the convergence of AMGX (especially for pressure field )? How can the solving parameters be set to eliminate the influence of these isolated solid region equations?
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Research direction
The issue names no files, tests, or entry points. Research AMGX solver parameters for pressure and velocity systems, then determine whether isolated equations affect convergence and what configuration would address their influence. Done requires a clear, validated answer for the described CFD setup.
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Assessment
- Domain
- hpc
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100