Hi, I'm using mpich 2.1.5 compiled to use blcr checkpoint. I'm having problems with the checkpoint interval. When I execute: mpiexec -ckpointlib blcr -ckpoint-prefix /partnfs/mpichchk -ckpoint-interval 120 -f maquinas -n 16 ./bt.C.16 In fact, at the second 120, the execution is interrupted for checkpointing, but, as the checkpoint last more than 120 seconds, another checkpoint is immediately triggered instead of resuming the application. I only achieve to get a checkpoint by setting a checkpoint interval almost at the end of the execution but it is not useful. How can I solve it? Besides, Is there a way to know how long is the checkpoint in time? Thank you very much. Marcela mpiexec -info HYDRA build details: Version: 1.5 Release Date: Mon Oct 8 14:00:48 CDT 2012 CC: gcc CXX: c++ F77: gfortran F90: gfortran Configure options: '--disable-option-checking' '--prefix=/soft/mpich2/mpich2-1.5-blcr8.3' '--with-hydra-ckpointlib=blcr' '--with-blcr=/soft/blcr' '--enable-checkpointing' '--cache-file=/dev/null' '--srcdir=.' 'CC=gcc' 'CFLAGS= -O2' 'LDFLAGS= -L/soft/blcr/lib64 -L/soft/blcr/lib' 'LIBS=-lrt -lcr -lpthread ' 'CPPFLAGS= -I/SRC/mpi/mpich2-1.5/src/mpl/include -I/SRC/mpi/mpich2-1.5/src/mpl/include -I/SRC/mpi/mpich2-1.5/src/openpa/src -I/SRC/mpi/mpich2-1.5/src/openpa/src -I/SRC/mpi/mpich2-1.5/src/mpi/romio/include -I/soft/blcr/include' Process Manager: pmi Launchers available: ssh rsh fork slurm ll lsf sge manual persist Topology libraries available: hwloc Resource management kernels available: user slurm ll lsf sge pbs Checkpointing libraries available: blcr Demux engines available: poll select