[Scip] how to run using FiberSCIP?

George Nychis gnychis at gmail.com
Sat Sep 21 01:45:44 CEST 2013


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
>
>
> _______________________________________________
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>
>
>
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