Hi,<br><br>I am using superlu dist in PETSc 3.1. The version of superlu dist installed by petsc is SuperLU_DIST_2.4-hg-v2. Does anyone know which colperm method superlu dist use for the default setting by petsc? I cannot got such information by using -mat_superlu_dist_statprint, the output of which I attached below. Thanks.<br>
<br>Regards,<br>Wen<br><br>***************************************************************************************************************<br>PC Object:<br>� type: lu<br>��� LU: out-of-place factorization<br>��� tolerance for zero pivot 1e-12<br>
��� matrix ordering: natural<br>��� factor fill ratio given 0, needed 0<br>����� Factored matrix follows:<br>������� Matrix Object:<br>��������� type=mpiaij, rows=215883, cols=215883<br>��������� package used to perform factorization: superlu_dist<br>
��������� total: nonzeros=0, allocated nonzeros=431766<br>����������� SuperLU_DIST run parameters:<br>������������� Process grid nprow 8 x npcol 8<br>������������� Equilibrate matrix TRUE<br>������������� Matrix input mode 1<br>
������������� Replace tiny pivots TRUE<br>������������� Use iterative refinement FALSE<br>������������� Processors in row 8 col partition 8<br>������������� Row permutation LargeDiag<br>������������� Parallel symbolic factorization FALSE<br>
������������� Repeated factorization SamePattern<br>******************************************************************************************************************<br>