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Hello,<br>
<br>
Another crash when using ex2 (src/ksp/ksp/examples/tutorials) in
parallel on GPU, when playing with<br>
precondtionners:<br>
<br>
mpiexec -np 1 ./ex2 -ksp_type cg -m 10 -n 10 -pc_type bjacobi
-sub_pc_type jacobi <br>
Norm of error 5.71895e-06 iterations 14<br>
mpiexec -np 1 ./ex2 -ksp_type cg -m 10 -n 10 -pc_type bjacobi
-sub_pc_type jacobi -mat_type aijcusp -vec_type cusp<br>
Norm of error 5.71895e-06 iterations 14<br>
mpiexec -np 2 ./ex2 -ksp_type cg -m 10 -n 10 -pc_type bjacobi
-sub_pc_type jacobi <br>
Norm of error 5.71895e-06 iterations 14<br>
mpiexec -np 2 ./ex2 -ksp_type cg -m 10 -n 10 -pc_type bjacobi
-sub_pc_type jacobi -mat_type aijcusp -vec_type cusp<br>
[0]PETSC ERROR:
------------------------------------------------------------------------<br>
[0]PETSC ERROR: Caught signal number 11 SEGV: Segmentation
Violation, probably memory access out of range<br>
[0]PETSC ERROR: Try option -start_in_debugger or
-on_error_attach_debugger<br>
[0]PETSC ERROR: or see
<a class="moz-txt-link-freetext" href="http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind">http://www.mcs.anl.gov/petsc/documentation/faq.html#valgrind</a>[0]PETSC
ERROR: or try <a class="moz-txt-link-freetext" href="http://valgrind.org">http://valgrind.org</a> on GNU/linux and Apple Mac OS X to
find memory corruption errors<br>
[0]PETSC ERROR: configure using --with-debugging=yes, recompile,
link, and run <br>
[0]PETSC ERROR: to get more information on the crash.<br>
[0]PETSC ERROR: --------------------- Error Message
--------------------------------------------------------------<br>
<br>
Whereas the last one should work exactly as:<br>
mpiexec -np 2 ./ex2 -ksp_type cg -m 10 -n 10 -pc_type jacobi
-mat_type aijcusp -vec_type cusp<br>
Norm of error 5.71895e-06 iterations 14<br>
<br>
Or I miss something ?<br>
<br>
Pierre<br>
<div class="moz-signature">-- <br>
<b>Trio_U support team</b>
<br>
Marthe ROUX (01 69 08 00 02) Saclay
<br>
Pierre LEDAC (04 38 78 91 49) Grenoble
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