RE: [Help-glpk] Feature request - option to flush output

[Hart, William E]

Haroldo:

 

It sounds like you mean that flushing should be the default 
behavior, right?  That would also be fine by me.

 

--Bill


  

 From: Haroldo Santos 
  [mailto:address@hidden 
Sent: Monday, September 14, 2009 
  8:22 AM
To: Hart, William E
Cc: address@hidden
Subject: Re: [Help-glpk] Feature request - option 
  to flush output



 

I think that flushing the output more often should not be an 
  option.
Flushing in this case is cheap and prevents stream readers (another 
  process or a text file) from staying outdated...

 On Mon, Sep 14, 2009 at 11:03 AM, Hart, William E <address@hidden> wrote:
 Hi, 
    Andrew.

By default, IO streams are not regularly flushed; they are 
    buffered in the computer until 'enough' IO has been done (or until the 
    stream is closed).

I'm piping glpsol through some Python code and 
    this buffering is creating a noticable delay in my processing.  What 
    I'd like is an option that enables explicit flushing of glpsol's output. 
     For example, after each status line is printed, you might 
    execute:

 flush(stdout)

(or do "cout << flush" in 
    C++).

--Bill
  

 
> -----Original Message-----
> From: Andrew 
    Makhorin [mailto:address@hidden
> Sent: 
    Sunday, September 13, 2009 5:27 PM
> To: Hart, William E
> Cc: address@hidden
> Subject: 
    Re: [Help-glpk] Feature request - option to flush output
>
> 
    > I'd like to see an option in GLPK that allows the output
> 
    summary to be
> > flushed on a regular basis.  I understand 
    why you might leave this
> > 'off' by default, but allowing users 
    to have very active
> updates adds
> > some value to their 
    interactions with GLPK.
>
> Could you please clarify your 
    request in more details? Thanks.
>
>
> Andrew 
    Makhorin
>
>
>





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-- 
=============================================================
Haroldo 
  Gambini Santos
Computing Department - Universidade Federal de Ouro Preto - 
  UFOP
email: address@hidden
home/research 
  page:  http://www.decom.ufop.br/prof/haroldo/

 #8220;BE 
  the change you want to see in the world #8221; -Mahatma 
Gandhi

Haroldo:

 

It sounds like you mean that flushing should be the default behavior, right?  That would also be fine by me.

 

--Bill

---

From: Haroldo Santos [mailto:address@hidden
Sent: Monday, September 14, 2009 8:22 AM
To: Hart, William E
Cc: address@hidden
Subject: Re: [Help-glpk] Feature request - option to flush output

I think that flushing the output more often should not be an option.
Flushing in this case is cheap and prevents stream readers (another process or a text file) from staying outdated...

On Mon, Sep 14, 2009 at 11:03 AM, Hart, William E <address@hidden> wrote:

Hi, Andrew.

By default, IO streams are not regularly flushed; they are buffered in the computer until 'enough' IO has been done (or until the stream is closed).

I'm piping glpsol through some Python code and this buffering is creating a noticable delay in my processing.  What I'd like is an option that enables explicit flushing of glpsol's output.  For example, after each status line is printed, you might execute:

 flush(stdout)

(or do "cout << flush" in C++).

--Bill

> -----Original Message-----
> From: Andrew Makhorin [mailto:address@hidden]
> Sent: Sunday, September 13, 2009 5:27 PM
> To: Hart, William E
> Cc: address@hidden
> Subject: Re: [Help-glpk] Feature request - option to flush output
>
> > I'd like to see an option in GLPK that allows the output
> summary to be
> > flushed on a regular basis.  I understand why you might leave this
> > 'off' by default, but allowing users to have very active
> updates adds
> > some value to their interactions with GLPK.
>
> Could you please clarify your request in more details? Thanks.
>
>
> Andrew Makhorin
>
>
>





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address@hidden
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--
=============================================================
Haroldo Gambini Santos
Computing Department - Universidade Federal de Ouro Preto - UFOP
email: address@hidden
home/research page:  http://www.decom.ufop.br/prof/haroldo/

“BE the change you want to see in the world” -Mahatma Gandhi