On Mon, 31 Jul 2017, Barry Smith wrote: > > or should it be tucked away so that every compile of everything doesn't > see it? > > > #if defined(PETSC_HAVE_XMMINTRIN_H) && !defined(__CUDACC__) > #include <xmmintrin.h> > #endif > > if an example needs this include couldn't the example just include it > directly?
Its presumably required by PetscPrefetchBlock() [which is in public API] - and PETSC_Prefetch [which is defined in petscconf.h] Satish
