Well. Thanks! Look forward to the version which is supported with the fault tolerance. At 2014-08-18 09:58:59, "Bland, Wesley B." <[email protected]> wrote: Unfortunately, you’re correct that there isn’t currently a solution. Until we fix that ticket, checkpointing is currently not functioning in MPICH. It’s on the roadmap to be fixed along with some new fault tolerance features in the future, but it’s not there yet. Thanks, Wesley On Aug 18, 2014, at 8:51 AM, myself <[email protected]> wrote: I tried to use BLCR with MPICH3. However, it seems not to work. I compile the blcr in CentOS and `make test` show not fail tests. Then, I compile mpich with BLCR. The information is shown as follows, $ mpichversion MPICH Version: 3.1.2 MPICH Release date:Mon Jul 21 16:00:21 CDT 2014 MPICH Device: ch3:nemesis MPICH configure: --prefix=/home/test/develop/mpich3-blcr --with-device=ch3:nemesis CFLAGS=-fPIC --enable-checkpointing --with-blcr=/home/test/develop/blcr-0.8.5 --with-hydra-ckpointlib=blcr MPICH CC: gcc -fPIC -O2 MPICH CXX: g++ -O2 MPICH F77: gfortran -O2 MPICH FC: gfortran -O2 After that, I compile my application like this $ mpicc mpiblcr.c -o mpiblcr -lcr When I firstly run the application, it seems ok to make the checkpoint files, such as context-num0-0-0. $ mpiexec -ckpointlib blcr -ckpoint-prefix `pwd` -ckpoint-interval 2 -n 2 ./mpiblcr 5411) Step 0 5410) Step 0 5410) Step 1 5411) Step 1 [proxy:0:0@node1] requesting checkpoint [proxy:0:0@node1] checkpoint completed 5410) Step 2 5411) Step 2 However, when I try to restart the process with checkpoint, it hangs and thereis no information printed. $ mpiexec -ckpointlib blcr -ckpoint-prefix `pwd` -n 2 -ckpoint-num 1 The pstree shows the pmi start application process ├─sshd─┬─3*[sshd───sshd───bash] │ ├─sshd───sshd───bash───mpiexec───hydra_pmi_proxy───mpiblcr │ └─sshd───sshd───bash───pstree and `ps aux` shows the process is defunct $ ps aux | grep osu_bw test 15290 0.0 0.0 0 0 ? Z 21:44 0:00 [mpiblcr] <defunct> I don't know how to identify this problem. I also see someone had the same problem like me several years ago #1144. But, there are no solutions. _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss