[Scip] how to run using FiberSCIP?

[George Nychis]

Also, is there a manual online somewhere that I can use?

I am trying to run it like "fscip blah.zpl" but I think it's looking for a
parameter file, and I don't know what one looks like.

I looked at the "ParaSCIP" reference on the UG homepage, but it's more of a
technical/research paper rather than a manual to use fscip.

Just trying to figure out how to solve the program specified my ZIMPL file
and split it across 4 cores.

- George




On Fri, Sep 20, 2013 at 7:45 PM, George Nychis <gnychis at gmail.com> wrote:

> Thanks Gerald!  I appreciate the help. I ran in to a slight issue building
> it on Darwin (mac) however:
>
> src/ug_scip/fscip.cpp: In function ‘int main(int, char**)’:
> src/ug_scip/fscip.cpp:306: error: ‘SA_NOMASK’ was not declared in this
> scope
> src/ug_scip/fscip.cpp:306: error: ‘SA_ONESHOT’ was not declared in this
> scope
>
> I was able to get it to build by adding the following to the top of fscip.c
>
> #define SA_NOMASK	SA_NODEFER
> #define SA_ONESHOT	SA_RESETHAND
>
> You probably want a cleaner solution than this, though, which is
> cross-platform compatible during build.
>
>
> On Fri, Sep 20, 2013 at 4:44 PM, Gerald Gamrath <gamrath at zib.de> wrote:
>
>>  Hi George,
>>
>> the PARASCIP compile flag is only used to compile SCIP threadsafe. If you
>> want to use FiberSCIP you need to compile the ug framework supplied with
>> the SCIP optimization suite (FiberSCIP is the ug framework applied to SCIP
>> on a shared memory machine). From the main directory, run "make
>> PARASCIP=true ug"; the FiberSCIP binary is than located in
>> "ug-0.7.1/bin/fscip".
>>
>> Best,
>> Gerald
>>
>>
>> Am 20.09.2013 21:20, schrieb George Nychis:
>>
>> Hi,
>>
>>  I have a quad core machine and I would like to run SCIP using all 4
>> cores using the recent FiberSCIP work.  I have scip opt suite 3.0.1 and
>> built from the main directory using "make PARASCIP=true"
>>
>>  I didn't find any documentation on how exactly things should work there
>> forward (e.g., are flags needed?).  But it appears that only one of my
>> cores is being used, and the process manager suggested there was only 1
>> thread from scip:
>>
>>  [image: Inline image 1]
>>
>>  Does anyone know how I can trigger FiberSCIP to split the work across
>> the cores?
>>
>>  Thanks!
>> George
>>
>>
>> _______________________________________________
>> Scip mailing listScip at zib.dehttp://listserv.zib.de/mailman/listinfo/scip
>>
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listserv.zib.de/pipermail/scip/attachments/20130920/29404051/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 8083 bytes
Desc: not available
URL: <http://listserv.zib.de/pipermail/scip/attachments/20130920/29404051/attachment.png>