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Re: [Help-glpk] [Fwd: Problem with GLPK when trying to find value functi


From: Robbie Morrison
Subject: Re: [Help-glpk] [Fwd: Problem with GLPK when trying to find value functions]
Date: Fri, 27 Jul 2012 06:09:50 +1200
User-agent: SquirrelMail/1.4.22

Hello Sergey

Your two emails are both below.  I deleted some material
to shorten this message.  Some comments interleaved too.

------------------------------------------------------------
To:           Robbie Morrison <address@hidden>
Subject:      Re: [Help-glpk] [Fwd: Problem with GLPK when trying to find
value functions]
Message-ID: 
<address@hidden>
From:         Sergey Kuznetsov <address@hidden>
Date:         Thu, 26 Jul 2012 17:20:27 +0000
------------------------------------------------------------

> Hello again Robbie,
>
> Sorry, last time I didn't ran valgrind correctly. My
> binary called 'test' so it's probably ran /usr/bin/test
> But now I run my binary for sure and it works!!!  I
> guess if I don't find bag in my code I will use
> valgrind.  But I still want to find the bag just for
> self-learning.  Again, thank you very much!

If you want to run local files, use: $ ./test

As for naming your binary "test" .. very descriptive!

> Sergey
>
> On Thu, Jul 26, 2012 at 5:07 PM, Sergey Kuznetsov <address@hidden>
wrote:
>
>> Hello Robbie,
>>
>> I ran my binary under valgrind, here is summary:
>> ==12805== HEAP SUMMARY:
>> ==12805==     in use at exit: 0 bytes in 0 blocks

[snip]

------------------------------------------------------------
To:           Robbie Morrison <address@hidden>
Subject:      Re: [Help-glpk] [Fwd: Problem with GLPK when trying to find
value functions]
Message-ID: 
<address@hidden>
From:         Sergey Kuznetsov <address@hidden>
Date:         Thu, 26 Jul 2012 17:07:33 +0000
------------------------------------------------------------

> Hello Robbie,
>
> I ran my binary under valgrind, here is summary:
> ==12805== HEAP SUMMARY:
> ==12805==     in use at exit: 0 bytes in 0 blocks

[snip]

Actually it looked like a pointer went out of
scope, or some such, before GLPK had finished
with it.

>>One other thought: GLPK is not officially thread safe:
>>do you call GLPK concurrently?
>
> At first, I ran GLPK in omp parallel for, it didn't enough memory for big
> instances, that's why I'm using in a loop:
> for each right-hand side{
>    call GLPK;
>    store optimal value;
> }

Okay.

> Thanks,
>
> Sergey
>
> On Thu, Jul 26, 2012 at 4:41 PM, Robbie Morrison
<address@hidden>wrote:
>
>>
>> Hello Sergey

[snip]

Your project sounds interesting, good luck.

---
Robbie Morrison
PhD student -- policy-oriented energy system simulation
Technical University of Berlin (TU-Berlin), Germany
University email (redirected) : address@hidden
Webmail (preferred)           : address@hidden
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