Do not kill this FEP process if you want to restart your parallel process from a checkpoint. After a system crash, if the system administrator runs SCore-D with the restart option, your parallel process will be automatically restarted from the latest checkpoint, as long as the FEP process is still alive. If a checkpoint image was not taken before a system crash, your parallel process will execute from the beginning again. If the system administrator does not rerun SCore-D with the restart option, then your FEP process will be killed and the checkpoint for the parallel process is lost. Use -static to make your program checkpointable.
Programs using zero-copy communication is unable to restart.
Only the latest checkpoint can be used to restart the parallel process. A new checkpoint overrides the previous one. File contents cannot be resumed. Sockets, pipes, and shared memory cannot be resumed. Such a memory area can be resumed as long as the file contents are preserved at the checkpoint.