IntelĀ® MPI Library Reference Manual for Linux* OS
The following is an example of restarting an application from checkpoint number <N>.
user@head $ mpiexec.hydra -restart -ckpoint-prefix /home/user/ckptdir -ckpointlib blcr -ckpoint-num <N> -n 32 -f hosts
When restarting, you need to revise the "hosts" file to eliminate any dead or unavailable nodes. Also, providing the executable name is not necessary when restarting because it is already stored in the checkpoint images.