<html><head></head><body><span>Hello,<br><br>I want to solve a cfd case, after decomposition, I get a sub matrix allocated to each process. The example below shows how the data is allocated to the processes (the sample data includes only the lower parts of the matrices). Row and column addresses are local.<br><br>What petsc program setup/concept can be used to solve multiple linear systems in parallel, one on each process? <br><br>Klaus<br><br>Sample raw data:<br><br>process matrix section value row column<br>0 lower 1,80E-05 1 0<br>0 lower 1,80E-05 5 0<br>0 lower 1,96E-05 2 1<br>0 lower 2,20E-05 6 1<br>0 lower 1,96E-05 3 2<br>0 lower 2,20E-05 7 2<br>0 lower 1,96E-05 4 3<br>0 lower 2,20E-05 8 3<br>0 lower 2,20E-05 9 4<br>0 lower 2,20E-05 6 5<br>0 lower 1,96E-05 10 5<br>0 lower 2,44E-05 7 6<br>0 lower 2,44E-05 11 6<br>0 lower 2,44E-05 8 7<br>0 lower 2,44E-05 12 7<br>0 lower 2,44E-05 9 8<br>0 lower 2,44E-05 13 8<br>0 lower 2,44E-05 14 9<br>0 lower 2,20E-05 11 10<br>0 lower 1,96E-05 15 10<br>0 lower 2,44E-05 12 11<br>0 lower 2,44E-05 16 11<br>0 lower 2,44E-05 13 12<br>0 lower 2,44E-05 17 12<br>0 lower 2,44E-05 14 13<br>0 lower 2,44E-05 18 13<br>0 lower 2,44E-05 19 14<br>0 lower 2,20E-05 16 15<br>0 lower 1,96E-05 20 15<br>0 lower 2,44E-05 17 16<br>0 lower 2,44E-05 21 16<br>0 lower 2,44E-05 18 17<br>0 lower 2,44E-05 22 17<br>0 lower 2,44E-05 19 18<br>0 lower 2,44E-05 23 18<br>0 lower 2,44E-05 24 19<br>0 lower 2,20E-05 21 20<br>0 lower 2,44E-05 22 21<br>0 lower 2,44E-05 23 22<br>0 lower 2,44E-05 24 23<br>1 lower 2,20E-05 1 0<br>1 lower 1,96E-05 5 0<br>1 lower 2,44E-05 2 1<br>1 lower 2,44E-05 6 1<br>1 lower 2,44E-05 3 2<br>1 lower 2,44E-05 7 2<br>1 lower 2,44E-05 4 3<br>1 lower 2,44E-05 8 3<br>1 lower 2,44E-05 9 4<br>1 lower 2,20E-05 6 5<br>1 lower 1,96E-05 10 5<br>1 lower 2,44E-05 7 6<br>1 lower 2,44E-05 11 6<br>1 lower 2,44E-05 8 7<br>1 lower 2,44E-05 12 7<br>1 lower 2,44E-05 9 8<br>1 lower 2,44E-05 13 8<br>1 lower 2,44E-05 14 9<br>1 lower 2,20E-05 11 10<br>1 lower 1,96E-05 15 10<br>1 lower 2,44E-05 12 11<br>1 lower 2,44E-05 16 11<br>1 lower 2,44E-05 13 12<br>1 lower 2,44E-05 17 12<br>1 lower 2,44E-05 14 13<br>1 lower 2,44E-05 18 13<br>1 lower 2,44E-05 19 14<br>1 lower 2,20E-05 16 15<br>1 lower 1,80E-05 20 15<br>1 lower 2,44E-05 17 16<br>1 lower 2,20E-05 21 16<br>1 lower 2,44E-05 18 17<br>1 lower 2,20E-05 22 17<br>1 lower 2,44E-05 19 18<br>1 lower 2,20E-05 23 18<br>1 lower 2,20E-05 24 19<br>1 lower 1,80E-05 21 20<br>1 lower 1,96E-05 22 21<br>1 lower 1,96E-05 23 22<br>1 lower 1,96E-05 24 23<br>2 lower 1,96E-05 1 0<br>2 lower 2,20E-05 5 0<br>2 lower 1,96E-05 2 1<br>2 lower 2,20E-05 6 1<br>2 lower 1,96E-05 3 2<br>2 lower 2,20E-05 7 2<br>2 lower 1,80E-05 4 3<br>2 lower 2,20E-05 8 3<br>2 lower 1,80E-05 9 4<br>2 lower 2,44E-05 6 5<br>2 lower 2,44E-05 10 5<br>2 lower 2,44E-05 7 6<br>2 lower 2,44E-05 11 6<br>2 lower 2,44E-05 8 7<br>2 lower 2,44E-05 12 7<br>2 lower 2,20E-05 9 8<br>2 lower 2,44E-05 13 8<br>2 lower 1,96E-05 14 9<br>2 lower 2,44E-05 11 10<br>2 lower 2,44E-05 15 10<br>2 lower 2,44E-05 12 11<br>2 lower 2,44E-05 16 11<br>2 lower 2,44E-05 13 12<br>2 lower 2,44E-05 17 12<br>2 lower 2,20E-05 14 13<br>2 lower 2,44E-05 18 13<br>2 lower 1,96E-05 19 14<br>2 lower 2,44E-05 16 15<br>2 lower 2,44E-05 20 15<br>2 lower 2,44E-05 17 16<br>2 lower 2,44E-05 21 16<br>2 lower 2,44E-05 18 17<br>2 lower 2,44E-05 22 17<br>2 lower 2,20E-05 19 18<br>2 lower 2,44E-05 23 18<br>2 lower 1,96E-05 24 19<br>2 lower 2,44E-05 21 20<br>2 lower 2,44E-05 22 21<br>2 lower 2,44E-05 23 22<br>2 lower 2,20E-05 24 23<br>3 lower 2,44E-05 1 0<br>3 lower 2,44E-05 5 0<br>3 lower 2,44E-05 2 1<br>3 lower 2,44E-05 6 1<br>3 lower 2,44E-05 3 2<br>3 lower 2,44E-05 7 2<br>3 lower 2,20E-05 4 3<br>3 lower 2,44E-05 8 3<br>3 lower 1,96E-05 9 4<br>3 lower 2,44E-05 6 5<br>3 lower 2,44E-05 10 5<br>3 lower 2,44E-05 7 6<br>3 lower 2,44E-05 11 6<br>3 lower 2,44E-05 8 7<br>3 lower 2,44E-05 12 7<br>3 lower 2,20E-05 9 8<br>3 lower 2,44E-05 13 8<br>3 lower 1,96E-05 14 9<br>3 lower 2,44E-05 11 10<br>3 lower 2,44E-05 15 10<br>3 lower 2,44E-05 12 11<br>3 lower 2,44E-05 16 11<br>3 lower 2,44E-05 13 12<br>3 lower 2,44E-05 17 12<br>3 lower 2,20E-05 14 13<br>3 lower 2,44E-05 18 13<br>3 lower 1,96E-05 19 14<br>3 lower 2,44E-05 16 15<br>3 lower 2,20E-05 20 15<br>3 lower 2,44E-05 17 16<br>3 lower 2,20E-05 21 16<br>3 lower 2,44E-05 18 17<br>3 lower 2,20E-05 22 17<br>3 lower 2,20E-05 19 18<br>3 lower 2,20E-05 23 18<br>3 lower 1,80E-05 24 19<br>3 lower 1,96E-05 21 20<br>3 lower 1,96E-05 22 21<br>3 lower 1,96E-05 23 22<br>3 lower 1,80E-05 24 23<br></span><div><br></div><div class="ydpd19d12bcyahoo-style-wrap" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 10px;"></div></body></html>