[petsc-users] ead a matrix and vector from a file and solve a linear system in parallel

[luciano Hammond Noratto]

Hello,

I was trying to read a matrix and vector from here
https://sparse.tamu.edu/FEMLAB/waveguide3D and then solve the linear system
in parallel without success. I'm new in PETSC, I'd really appreciate it if
someone could help me to solve this problem.

Luciano
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