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<div>A deprecated option won't cause segfault. From <a href="https://www.mcs.anl.gov/petsc/petsc-current/src/dm/label/examples/tutorials/ex1f90.F90.html">https://www.mcs.anl.gov/petsc/petsc-current/src/dm/label/examples/tutorials/ex1f90.F90.html</a>, it seems
 you missed the first <span style="color:rgb(0,0,0)">PETSC_NULL_OPTIONS.</span></div>
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<div dir="ltr">--Junchao Zhang</div>
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<div dir="ltr" class="gmail_attr">On Wed, Jan 8, 2020 at 4:02 PM Anthony Paul Haas <<a href="mailto:aph@email.arizona.edu">aph@email.arizona.edu</a>> wrote:<br>
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<div>Hello,</div>
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<div>I am using Petsc 3.7.6.0. with Fortran code and I am getting a segmentation violation for the following line:</div>
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<div>call PetscOptionsGetBool(PETSC_NULL_CHARACTER,"-use_mumps_lu",flg_mumps_lu,flg,self%ierr_ps)</div>
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<div>in which:</div>
<div>flg_mumps_lu and flg are defined as PetscBool and <br>
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<div>flg_mumps_lu = PETSC_TRUE</div>
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<div>Is the option -use_mumps_lu deprecated?</div>
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<div>Thanks,</div>
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<div>Anthony<br>
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