[petsc-users] PETSc and threads

[Petar Petrovic]

Hello,
I have read that PETSc isn't thread safe, however I am not sure I
understand in which way. What I would like to do is execute parts of my
code that make calls to PETSc routines in parallel, for example,
if I have matices A, B, C and D, is it possible to call MatMatMult(A,B) on
one thread and MatMatMult(C,D) on the other thread in parallel? Is there an
example which shows how to do something this, e.g. combine PETSc with mine
MPI calls or something similar?
Thank you very much for your help.
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