Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |  

This web mail archive is frozen.

This page is part of a frozen web archive of this mailing list.

You can still navigate around this archive, but know that no new mails have been added to it since July of 2016.

Click here to be taken to the new web archives of this list; it includes all the mails that are in this frozen archive plus all new mails that have been sent to the list since it was migrated to the new archives.

Subject: Re: [OMPI users] OpenMPI Checkpoint/Restart is failed
From: Josh Hursey (jjhursey_at_[hidden])
Date: 2010-05-18 14:46:20

(Sorry for the delay in replying, more below)

On Apr 12, 2010, at 6:36 AM, Hideyuki Jitsumoto wrote:

> Hi Members,
> I tried to use checkpoint/restart by openmpi.
> But I can not get collect checkpoint data.
> I prepared execution environment as follows, the strings in () mean
> name of output file which attached on next e-mail ( for mail size
> limitation ):
> 1. installed BLCR and checked BLCR is working correctly by "make
> check"
> 2. executed ./configure with some parameters on openMPI source dir
> (config.output / config.log)
> 3. executed make and make install (make.output.2 / install.output.2)
> 4. confirmed that mca_crs_blcr.[la|so], mca_crs_self.[la|so] on
> /${INSTALL_DIR}/lib/openmpi
> 5. make ~/.openmpi/mca-params.conf (mca-params.conf)
> 6. compiled NPB and executed with -am ft-enable-cr
> 7. invoked ompi-checkpoint <MPIRUN_PID>
> As result, I got the message "Checkpoint failed: no processes
> checkpointed."
> (cr_test_cg)

It is unclear from the output what caused the checkpoint to fail. Can
you turn on some verbose arguments and send me the output?

Put the following options in you ~/.openmpi/mca-params.conf:

> In addition, when I confirmed open_info output as your demo movie, I
> got
> "MCA crs: none (MCA v2.0, API v2.0, Component
> v1.4.1)" (open_info.output)

This is actually a known bug with ompi_info. I have a fix in the works
for it, and should be available soon. Until then the ticket is linked

> How should I do for checkpointing ?
> Any guidance in this regard would be highly appreciated.

Let's see what the verbose output tells us, and go from there. What
version of BLCR are you using?

-- Josh

> Thank you,
> Hideyuki
> --
> Sincerely Yours,
> Hideyuki Jitsumoto (jitumoto_at_[hidden])
> Tokyo Institute of Technology
> Global Scientific Information and Computing center (Matsuoka Lab.)
> _______________________________________________
> users mailing list
> users_at_[hidden]