Re: [Dmtcp-forum] Standard output 1.2.8 versus 2.0

[Samaneh <kaz...@gm...>]

Hi,

   Sure, I'll look at it today.

Best,
Samaneh

> On Oct 11, 2013, at 7:07 AM, Gene Cooperman <ge...@cc...> wrote:
> 
> Thanks very much for the bug report, Alan.  We'll definitely
> look into this quickly.  You're right that this method is
> "a bit surprising, but _very convenient_".  We'll either restore
> that behavior in DMTCP-2.x, or else provide an equivalent way
> to get the same functionality.
> 
> Samaneh, would you have time today to take a first look at the issue,
> to see what is the difference between DMTCP 1.2.8 and 2.0?.
> 
> Thanks,
> - Gene
> 
>> On Thu, Oct 10, 2013 at 10:09:15PM -0500, Alan De Smet wrote:
>> I've been starting my executables with something like:
>> 
>>    dmtcp_checkpoint --port 0 ./myprogram <filein 1>output 2>error
>> 
>> and restarting them with something like
>> 
>>    ./dmtcp_restart_script.sh --ckptdir ./
>> 
>> In 1.2.8, this worked fine.  In particular, on restart,
>> standard output (the file output, above) would be truncated back
>> to the correct location and further standard output would end up
>> there, despite my not specifying "1>output" on the restart.  That
>> this worked was a bit surprising, but very convenient.
>> 
>> In 2.0, this no longer works.  On restart, the output file is
>> ignored and standard output goes to standard output.
>> 
>> Is there a way to get the old behavior, or something similar out
>> of 2.0?  I'd be okay with passing something like
>> "--put-stdout-here=output" to dmtcp_checkpoint and/or
>> dmtcp_restart_script.sh.  If this functionality isn't in 2.0,
>> could it be?
>> 
>> -- 
>> Alan De Smet                 Center for High Throughput Computing
>> ad...@cs...                       http://chtc.cs.wisc.edu
>> 
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