[Scip] Solving time

[Jacob Spönemann]

  Hi Stefan,

thanks for the fast reply.

I'm using a dual-core system and four parallel threads are provided. 
SCIP uses only one thread. Could it possible, that this causes the 
deviating time values? So SCIP displays that amount of time that is used 
in terms of a "fully utilized CPU"? For example, SCIP is running for 320 
minutes and displays 80 minutes.

Best regards,

Jacob

Am 15.03.2012 17:21, schrieb Stefan Heinz:
> Hi Jacob,
>
> You can chanege the clock type via
>
> SCIP> set timing clocktype
>
>
>
> On 03/15/12 16:44, Jacob Spönemann wrote:
>>    Hi,
>>
>> the output of the solving process contains the field "time" (first
>> column of the output). Which time is displayed there?
> If you did not change the clock type, it is the CPU time.
>
>
>> Unfortunately, I could not find any detailed explanation in the SCIP
>> documentation regarding elements of the output.
> You can just ask the shell:
>
>  SCIP> display displaycols
>
>>
>> My current MIP job now is running for 24 hours and "time" tells me 
>> "420m".
> That is strange. This indicates that your job did not got 100% of the 
> CPU or you had a lot of system calls. If it is the latter case we 
> would like get the instance if possible, such that we can check where 
> these system calls come form. In any case you might want to change 
> from CPU time to wall clock time.
>
> SCIP> set timing clocktype 2
>
> Best Stefan
>> Best regards,
>>
>> Jacob
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>