Hi, I have been recently investigating the use of Petsc for solving a PDE related to my research and web search suggests that I should use petsc with elemental.
So far, I was required to solve a matrix equation Ax=b where A was dense (with number of non zeros =0) but the size of the matrix was order 5000x5000. I employed the standard serial LU solver from Gnu Scientific Library and obtained a decent runtime that served my needs. Now I am investigating the same problem in a particularly singular limit of one parameters in my PDE. As a result, to obtain grid convergence on the physical domain, I am forced to go to sizes of A beyond 30000x30000. I am trying to find a good library that can solve such dense systems in **parallel**. Petsc says its capable of doing dense linear algebra but my web search hasn't shown me any examples where dense equations are solved in **parallel**. A webpage showing a minimum working example would be enough. Or any other advice :) Thanks for your time! ~Preyas
