Re: BLCR 0.4.1 Beta5 now available

From: Paul H. Hargrove (PHHargrove_at_lbl_dot_gov)
Date: Tue Oct 11 2005 - 12:00:47 PDT

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      Since we already have an extra checkpoint thread in BLCR's library, it
    might not be too hard for us to use it as a periodic checkpoint
    requester for use within an application that wants to checkpoint
    itself.  I'd need to think a bit about how a request from this thread
    (which normally is SERVICING requests) would be done to avoid deadlock
    (perhaps yet another thread?).
    I am guessing an interface like:
      cr_request_periodic(const char * filename_prefix, int
    I don't want to suggest that we are going to do this any time soon - I'm
    just folloing through on the thought process while the idea is fresh.
    JCDuell_at_lbl_dot_gov wrote:
    >On Tue, Oct 11, 2005 at 02:40:39PM -0400, Neal Becker wrote:
    >>I'm interested in periodically checkpointing my executable.  While it's not 
    >>difficult to do this from the shell using e.g., cron, I wonder if blcr-devel 
    >>has a programmatic interface I could use?  Maybe I could write a little 
    >>python wrapper for it.
    >Yes, for the moment, you'd need to use cron or write your own wrapper,
    >etc.  It's too hard to write something like this in a way that will
    >please everyone (so everyone gets to write it themselves ;)
    Paul H. Hargrove                          PHHargrove_at_lbl_dot_gov
    Future Technologies Group                 
    HPC Research Department                   Tel: +1-510-495-2352
    Lawrence Berkeley National Laboratory     Fax: +1-510-486-6900

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