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Ma57 parameter fix #645

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Ma57 parameter fix #645

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nychiang
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@nychiang nychiang commented Jul 25, 2023

This PR changes some parameter settings in Ma57:

  1. Set icntl[9] to 1 --- default number of iterative refinement to 1. Right now we initialize it as 10 and replace it to 1 before using it.
  2. allocate more spaces to some work arrary, if icntl[9] > 1 (required by ma57)
  3. allow the combination of icntl[9]>1 and job = 0 or job=2 (but user needs to modify the source code to test these features --- per @pelesh request)

@pelesh @cnpetra

@nychiang nychiang requested review from cnpetra and pelesh July 25, 2023 19:53
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pelesh commented Jul 27, 2023

I ran some tests with large ACOPF models with MA57 in this branch and convergence was much worse than when run with develop branch. I ran it as is without any changes to MA57 parameters. This is my hiop.options file:

KKTLinsys xdycyd
print_options yes

verbosity_level 3
tolerance 1e-6
#fixed_var relax

duals_init zero
fact_acceptor inertia_free

compute_mode cpu
linear_solver_sparse ma57

@nychiang
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@pelesh did you use the same option file in develop branch? I didn't change any setting in this PR (see the change log). I tried the latest develop branch with your option file, and all the unit tests work fine.

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pelesh commented Aug 11, 2023

@pelesh did you use the same option file in develop branch? I didn't change any setting in this PR (see the change log). I tried the latest develop branch with your option file, and all the unit tests work fine.

I need to do some more testing. Preliminary tests did not work out of the box.

@nychiang
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@pelesh have you tried the changes in this PR?

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