[petsc-users] Segmentatoin fault

[丁老师]

I write a FVM code for the convection diffusion problem on a 2D cartesian grid.
the code can run correctly with a grid of 720*720. and it use only 26% of the system memory(8G) during its running.
but if i increase the grid to 800*800, it gives me the following error? could you please give me some information how to resolve it.



mpiexec -np 4 ./main
===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   EXIT CODE: 11
=   CLEANING UP REMAINING PROCESSES
=   YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
===================================================================================
YOUR APPLICATION TERMINATED WITH THE EXIT STRING: Segmentation fault (signal 11)
This typically refers to a problem with your application.
Please see the FAQ page for debugging suggestions
ztdep at linuxdell:~/Projects/CartesianPFlowingHeat2D-KDE/build> mpiexec -np 4 ./main
write the grid to Grid.cgns sucessfully
















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