That seems to have fixed it. Thanks. Victor.
> On Apr 1, 2019, at 8:02 PM, Balay, Satish <ba...@mcs.anl.gov> wrote: > > On Tue, 2 Apr 2019, Victor Eijkhout via petsc-dev wrote: > >> Configuring with elemental & 64-bit integers: >> >> Cannot use elemental with 64 bit BLAS/Lapack indices >> >> This used to work in 3.10. What changed? > > with MKL? > > Try: > > https://bitbucket.org/petsc/petsc/pull-requests/1489/revert-commit-69ab9685009e-so-that-blas/diff#Lconfig/BuildSystem/config/packages/BlasLapack.pyF215T215 > > Satish