[Users] Avoiding writing one checkpoint file per MPI process

Hello, In order to avoid stressing the filesystem on the cluster I'm running on, I was suggested to avoid writing one output/checkpoint file per MPI process and instead collecting data from multiple processes before outputting/checkpointing happens. I found the combination of parameters

IO::out_mode = "np" IO::out_proc_every = 8

does the job for output files, but I still have one checkpoint file per process. Is there a similar parameter, or combination of parameters, which can be used for checkpoint files?

Thank you very much, Lorenzo Ennoggi