[Petsc-trilinos-discussion] Scope and requirements

[Jed Brown]

"Bartlett, Roscoe A." <bartlettra at ornl.gov> writes:
> ML gets built along with the rest of Trilinos as a TriBITS package in
> VERA where PETSc is treated as a pre-built static TPL.  This is done
> because changes are being made to Trilinos to drive CASL work but not
> for PETSc.  Building PETSc downstream from Trilinos would mean
> wrapping PETSc as a TriBITS package and we don't want to go there
> unless we are forced to do so.  

Sounds like a build system limitation.  Prometheus was a heavy user of
PETSc, but --download-prometheus still set things up properly and
registered it as a PC without needing client applications to add
work-arounds.
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