Why is test listed twice here?

To invoke mpiexec twice.  The first invocation
will have no additional args beyond what the parent
has.

    But why would I EVER want to run it again with the same arguments as the 
previous time? Run the same test with the same arguments?

There is a confusion here.
When there are subtest blocks, the parent block does not generate any tests.

Perhaps a better specification would be to change the name of the top-level block since it is not generating a test:

   container:
      suffix: 19
      requires: datafilespath
      args: -f0 ${DATAFILESPATH}/matrices/poisson1
      args: -ksp_type cg -pc_type icc
      args: -pc_factor_levels {{0 2 4}}
      separate_testvars: pc_factor_levels
      test:
      test:
         args: -mat_type seqsbaij

Two mpiexec invocations, same output, but wanting to test minor permutations of arguments.

Other examples in ex10 that are of the same ilk are
ILU, cg_singlereduction, mumps_cholesky, mumps_lu, pastix_lu, zeropivot

It's more common though to have arguments change
the output requiring a new suffix:
{2,3},{4,5}, 7{a,b,c}, {13,14,15,17}, etc.

Instead of container, perhaps "testset" would
be more descriptive.



    test:
       args:
    test:
       args: -mat_type seqsbaij


  Instead of having the ugly separate_testvars argument could you somehow 
indicate it with the loop definition?

args: -pc_factor_levels {{0 2 4}separate test output files}

and

args: -pc_factor_levels {{0 2 4}shared test output file}


It's possible.

What about [[0 2 4]]  implying separate test output files?

   That works, the problem is that people have to remember what {{ means and and what [[ 
means. I would never be able to keep them straight, better to have a clear word that 
distinguishes them. I agree what I suggest is wordy, could be "shared/separate 
output"


So:
{{0 2 4}shared output}
and
{{0 2 4}separate output}


Would you accept {{0 2 4}} as being equivalent to {{0 2 4} shared ouput}
?

Scott







Scott


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