<p>Hi, PETSc developer<br></p><p>Now, when using MatGetSubMatrices(), the submatrices are saved in one cpu. Sometimes, the dimension of the submatrices are huge, it is impossible to save them in one cpu.</p><p>I am wondering whether the submatrices can be saved in parallel mode when using MatGetSubMatrices(). thanks a lot.</p>
<p>Regards,</p><p>Yujie</p>