Dear PETSc team, I would like to ask about the different of MATMPIAIJ and MATMPIBAIJ. I am using MATMPIAIJ type and want to try other structure of the matrix. I read about BAIJ format, which should be more efficient in setting value, MatSetValuesBlock(). It seems that I have to define the block sizes then every block will have the same size, right? Could I use BAIJ format if my block size is not the same in each block?
At the end of the day, would these 2 structures of matrix affect differently in solving performance such as speed up? Thank you Jarunan -- Jarunan Panyasantisuk Development Engineer ASCOMP GmbH, Technoparkstr. 1 CH-8005 Zurich, Switzerland Phone : +41 44 445 4072 Fax : +41 44 445 4075 E-mail: jarunan at ascomp.ch www.ascomp.ch