cluster:148
This is an old revision of the document!
BLCR Checkpoint in OL3
- This page concerns PARALLEL mpirun jobs only; there are some restrictions
- all MPI threads need to be confined to one node
- restarted jobs must use the same node (not sure why)
- For SERIAL jobs go here BLCR Checkpoint in OL3
- Installation and what it does BLCR
Checkpointing parallel jobs is a bit more complex than a serial job. MPI jobs are fired off by worker 0 of mpirun and all workers may open files and perform socket to socket communications. Therefore a restart will need to restore all file IDs, process Ids, etc. A job may thus fail if a certain process ID is already running. Restarted files also behave as if the old JOBPID is running and will write results to the old STDERR and STDOUT files. And use the old hostfile.
The ''blcr_wrapper_parallel' will manage all this for you. Like the serial wrapper only edit the top of the file and provide the information necessary. But first, your software needs to be compile with a special “older” version of OpenMPI. MPI checkpointing has been removed in later versions of OpenMPI. Here is the admin stuff.
# from eric at lbl
./configure \
--enable-ft-thread \
--with-ft=cr \
--enable-opal-multi-threads \
--with-blcr=/share/apps/blcr/0.8.5/test \
--without-tm \
--prefix=/share/apps/CENTOS6/openmpi/1.6.5.cr
# next download cr_mpirun
https://upc-bugs.lbl.gov/blcr-dist/cr_mpirun/cr_mpirun-295.tar.gz
# configure and test
export PATH=/share/apps/CENTOS6/openmpi/1.6.5.cr/bin:$PATH
export LD_LIBRARY_PATH=/share/apps/CENTOS6/openmpi/1.6.5.cr/lib:$LD_LIBRARY_PATH
./configure --with-blcr=/share/apps/blcr/0.8.5/test
============================================================================
Testsuite summary for cr_mpirun 295
============================================================================
# TOTAL: 3
# PASS: 3
# SKIP: 0
# XFAIL: 0
# FAIL: 0
# XPASS: 0
# ERROR: 0
============================================================================
make[1]: Leaving directory `/home/apps/src/petaltail6/cr_mpirun-295'
# I coped cr_runmpi into /share/apps/CENTOS6/openmpi/1.6.5.cr/bin
# cr_runmpi needs access to all these in $PATH
# mpirun cr_mpirun ompi-checkpoint ompi-restart cr_checkpoint cr_restart
# next compile you parallel software using mpicc/mpicxx from thhe 1.6.5 distro
[hmeij@cottontail lammps]$ bsub < blcr_wrapper
Job <681> is submitted to queue <test>.
[hmeij@cottontail lammps]$ bjobs
JOBID USER STAT QUEUE FROM_HOST EXEC_HOST JOB_NAME SUBMIT_TIME
681 hmeij PEND test cottontail test Mar 29 13:23
[hmeij@cottontail lammps]$ bjobs
JOBID USER STAT QUEUE FROM_HOST EXEC_HOST JOB_NAME SUBMIT_TIME
681 hmeij RUN test cottontail petaltail test Mar 29 13:23
petaltail
petaltail
petaltail
[hmeij@cottontail lammps]$ tail ~/.lsbatch/1459272204.681.out
160 4062132.4 -4439564.1 1.4618689e+08 2.8818933e+08 17552.743
170 4395340.9 -4440084.6 1.3417499e+08 2.8818925e+08 19150.394
180 4711438.8 -4440426.5 1.2277977e+08 2.8818918e+08 20665.317
190 5007151.9 -4440573.2 1.1211925e+08 2.8818913e+08 22081.756
200 5279740.3 -4440516 1.0229219e+08 2.8818909e+08 23386.523
210 5527023.5 -4440257.5 93377214 2.8818906e+08 24569.109
220 5747387.7 -4439813.3 85432510 2.8818904e+08 25621.734
230 5939773.3 -4439214.4 78496309 2.8818904e+08 26539.282
240 6103647.2 -4438507.6 72587871 2.8818905e+08 27319.145
250 6238961.8 -4437755.5 67708974 2.8818907e+08 27961.064
[hmeij@cottontail lammps]$ ll /sanscratch/checkpoints/681
total 30572
-rw------- 1 hmeij its 8704 Mar 29 13:28 1459272204.681.err
-rw------- 1 hmeij its 5686 Mar 29 13:28 1459272204.681.out
-rw-r--r-- 1 hmeij its 2652 Mar 29 13:28 au.inp
-rw-r--r-- 1 hmeij its 0 Mar 29 13:28 auout
-rw-r--r-- 1 hmeij its 38310 Mar 29 13:28 auu3
-r-------- 1 hmeij its 289714 Mar 29 13:28 chk.9127
-rw-r--r-- 1 hmeij its 21342187 Mar 29 13:28 data.Big11AuSAMInitial
-rw-r--r-- 1 hmeij its 9598629 Mar 29 13:28 henz.dump
drwx------ 3 hmeij its 46 Mar 29 13:28 ompi_global_snapshot_9134.ckpt
-rw-r--r-- 1 hmeij its 16 Mar 29 13:23 pwd.9127
[hmeij@cottontail lammps]$ ssh petaltail ps -u hmeij
PID TTY TIME CMD
5762 ? 00:00:00 sshd
5763 pts/1 00:00:00 bash
9104 ? 00:00:00 res
9110 ? 00:00:00 1459272204.681
9113 ? 00:00:00 1459272204.681.
9127 ? 00:00:00 cr_mpirun
9128 ? 00:00:00 blcr_watcher
9133 ? 00:00:00 cr_mpirun
9134 ? 00:00:00 mpirun
9135 ? 00:00:00 sleep
9136 ? 00:05:55 lmp_mpi
9137 ? 00:06:07 lmp_mpi
9138 ? 00:05:52 lmp_mpi
9139 ? 00:05:53 lmp_mpi
9347 ? 00:00:00 sleep
9369 ? 00:00:00 sshd
9370 ? 00:00:00 ps
18559 pts/2 00:00:00 bash
[hmeij@cottontail lammps]$ tail ~/.lsbatch/1459272204.681.out
190 5007151.9 -4440573.2 1.1211925e+08 2.8818913e+08 22081.756
200 5279740.3 -4440516 1.0229219e+08 2.8818909e+08 23386.523
210 5527023.5 -4440257.5 93377214 2.8818906e+08 24569.109
220 5747387.7 -4439813.3 85432510 2.8818904e+08 25621.734
230 5939773.3 -4439214.4 78496309 2.8818904e+08 26539.282
240 6103647.2 -4438507.6 72587871 2.8818905e+08 27319.145
250 6238961.8 -4437755.5 67708974 2.8818907e+08 27961.064
260 6346104.5 -4437033.7 63845731 2.881891e+08 28466.852
270 6425840.1 -4436426.7 60970646 2.8818913e+08 28840.129
280 6479251.9 -4436021.1 59044759 2.8818917e+08 29086.075
[hmeij@cottontail lammps]$ ssh petaltail kill 9133
[hmeij@cottontail lammps]$ bsub < blcr_wrapper
Job <684> is submitted to queue <test>.
[hmeij@cottontail lammps]$ rm -f ../.lsbatch/*^C
[hmeij@cottontail lammps]$ bjobs
JOBID USER STAT QUEUE FROM_HOST EXEC_HOST JOB_NAME SUBMIT_TIME
684 hmeij RUN test cottontail petaltail test Mar 29 13:48
petaltail
petaltail
petaltail
[hmeij@cottontail lammps]$ ll ../.lsbatch/
total 172
-rw------- 1 hmeij its 8589 Mar 29 13:48 1459272204.681.err
-rw------- 1 hmeij its 5686 Mar 29 13:48 1459272204.681.out
-rwx------ 1 hmeij its 4609 Mar 29 13:48 1459273700.684
-rw------- 1 hmeij its 9054 Mar 29 13:48 1459273700.684.err
-rw------- 1 hmeij its 53 Mar 29 13:48 1459273700.684.out
-rwxr--r-- 1 hmeij its 4270 Mar 29 13:48 1459273700.684.shell
lrwxrwxrwx 1 hmeij its 33 Mar 29 13:48 hostfile.681 -> /home/hmeij/.lsbatch/hostfile.684
-rw-r--r-- 1 hmeij its 40 Mar 29 13:48 hostfile.684
-rw-r--r-- 1 hmeij its 40 Mar 29 13:48 hostfile.tmp.684
[hmeij@cottontail lammps]$ less ../.lsbatch/*684.err
[hmeij@cottontail lammps]$ ssh petaltail ps -u hmeij
PID TTY TIME CMD
5762 ? 00:00:00 sshd
5763 pts/1 00:00:00 bash
9127 ? 00:00:00 cr_mpirun
9136 ? 00:00:34 lmp_mpi
9137 ? 00:00:34 lmp_mpi
9138 ? 00:00:34 lmp_mpi
9139 ? 00:00:34 lmp_mpi
9994 ? 00:00:00 res
10002 ? 00:00:00 1459273700.684
10005 ? 00:00:00 1459273700.684.
10039 ? 00:00:00 cr_restart
10051 ? 00:00:00 cr_mpirun
10052 ? 00:00:00 mpirun
10053 ? 00:00:00 blcr_watcher
10054 ? 00:00:00 sleep
10055 ? 00:00:00 sleep
10056 ? 00:00:01 cr_restart
10057 ? 00:00:01 cr_restart
10058 ? 00:00:02 cr_restart
10059 ? 00:00:02 cr_restart
10151 ? 00:00:00 sshd
10152 ? 00:00:00 ps
18559 pts/2 00:00:00 bash
[hmeij@cottontail lammps]$ tail -20 ../.lsbatch/1459272204.681.out
210 5527023.5 -4440257.5 93377214 2.8818906e+08 24569.109
220 5747387.7 -4439813.3 85432510 2.8818904e+08 25621.734
230 5939773.3 -4439214.4 78496309 2.8818904e+08 26539.282
240 6103647.2 -4438507.6 72587871 2.8818905e+08 27319.145
250 6238961.8 -4437755.5 67708974 2.8818907e+08 27961.064
260 6346104.5 -4437033.7 63845731 2.881891e+08 28466.852
270 6425840.1 -4436426.7 60970646 2.8818913e+08 28840.129
280 6479251.9 -4436021.1 59044759 2.8818917e+08 29086.075
290 6507681 -4435898.2 58019799 2.8818922e+08 29211.089
300 6512669 -4436124.7 57840251 2.8818927e+08 29222.575
310 6495904.7 -4436745.3 58445285 2.8818932e+08 29128.647
320 6459174.9 -4437776.1 59770495 2.8818937e+08 28937.93
330 6404322.4 -4439201.5 61749434 2.8818942e+08 28659.348
340 6333209 -4440973.8 64314930 2.8818947e+08 28301.927
350 6247685.4 -4443016.1 67400192 2.8818951e+08 27874.684
360 6149565.9 -4445228.2 70939709 2.8818956e+08 27386.465
370 6040609.2 -4447492.8 74869965 2.8818961e+08 26845.871
380 5922503.2 -4449683.5 79129981 2.8818965e+08 26261.166
390 5796854.1 -4451671.6 83661722 2.8818969e+08 25640.235
400 5665179.3 -4453332 88410367 2.8818972e+08 24990.519
cluster/148.1459360853.txt.gz · Last modified: 2016/03/30 14:00 by hmeij07
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