Sorry, everyone, for how long it took me to have time to get back to this. I tried the change I suggested in my previous message, but configure fails with ******************************************************************************* UNABLE to CONFIGURE with GIVEN OPTIONS (see configure.log for details): ------------------------------------------------------------------------------- Did not find package MKL_SPARSE_OPTIMIZE needed by mkl_sparse_sp2m. Enable the package using --with-mkl_sparse_optimize ******************************************************************************* Does this happen because I have specified that this is a "look for by default" package? What I'd like to happen is that this package be looked for my default, in fact, but if MKL_SPARSE_OPTIMIZE is not present or disabled, then I'd like the test for mkl_sparse_sp2m to fail gracefully and configure to continue. That is: I don't want the fact that I am looking for this package automatically to imply that it HAS to be there. Is there any easy way to get this behavior? --Richard On 11/27/18 2:15 PM, Smith, Barry F. wrote: On Nov 26, 2018, at 6:12 PM, Mills, Richard Tran via petsc-dev <[email protected]><mailto:[email protected]> wrote: Hi Stefano, Apologies for the slow reply; I was out for the US Thanksgiving Holiday. You've found an error in the logic for the MKL configure tests: Your MKL does indeed have mkl_sparse_sp2m(), but since this depends on having mkl_sparse_optimize() and you have specified '--with-mkl_sparse_optimize=0', PETSC_HAVE_MKL_SPARSE_SP2M either ought to not be defined, or in my AIJMKL code I should only enable the SP2M code if PETSC_HAVE_MKL_SPARSE_OPTIMIZE is defined. I think I like the former option better. For those more familiar with BuildSystem than I am, I think I can do this by putting the following in setupDependencies() in mkl_sparse_sp2m.py: self.mkl_sparse_optimize = framework.require('config.packages.mkl_sparse_optimize', self) self.deps = [self.blasLapack,self.mkl_sparse_optimize] Looks ok to me. Make a pull request with Satish as a reviewer. Barry Is that all that is required? --Richard On 11/21/18 10:59 PM, Stefano Zampini wrote: Richard, I just noticed that PETSc master does not build with the options '--with-mkl_pardiso-dir=/soft/com/packages/intel/18/u3/mkl', '--with-mkl_sparse_optimize=0', This is on frog at MCS, but it will be the same on other machines as the macros configuration PETSC_HAVE_MKL_SPARSE_OPTIMIZE not defined PETSC_HAVE_MKL_SPARSE_SP2M defined does not seem to be supported. /nfs2/szampini/src/petsc/src/mat/impls/aij/seq/aijmkl/aijmkl.c(797): error: struct "<unnamed>" has no field "csrA" csrA = a->csrA; Could you please take a look? Why is the mkl_sparse_sp2m package flagged as lookforbydefault in the configure scripts? Thanks -- Stefano