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Hello.<br>I could use some help regarding the following issues:<br><br>1. I have created 2 structurally identical MATMPIJ matrices A1 and A2 with N rows and M columns. I want to merge them in order to create a matrix of the double size A3 with 2*N rows and M columns so that the first row of A2 will be the N+1-th row of the new matrix. Is there any function I could use to do this?<br><br>2. Is there a way to split a matrix after its values have been set by 1 process? What I have done is to create a MATMPIJ and make that process send the data to the other processes in order to get the distributed matrix. But I hope there is a smarter way to do this!<br><br>Any idea is welcome,<br>Vasia.<br><a href="http://www.mcs.anl.gov/petsc/petsc-2/snapshots/petsc-current/docs/manualpages/Mat/MATAIJ.html"></a> <br /><hr />Windows Live: Keep your friends up to date <a href='http://www.microsoft.com/middleeast/windows/windowslive/see-it-in-action/social-network-basics.aspx?ocid=PID23461::T:WLMTAGL:ON:WL:en-xm:SI_SB_1:092010' target='_new'>with what you do online.</a></body>
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