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