Re: [Emc-users] emc packages for ubuntu 10.04 lucid lynx ?

2010-07-25 Thread wk-list 
Hi,

On Sun, Jul 25, 2010 at 04:37:12PM +0300, Viesturs Lācis wrote:
> Is it possible for EMC developers to publish EMC packages for Lucid
> with a note about the compatibility of current RTAI kernel with
> different CPUs and let RTAI developers sort that out? As I understand,
> then there are overall compatibility issues of Lucid RTAI kernel with
> certain CPUs, not EMC compatibility problem with the same CPUs.
Is the experimental kernel a rtai-patched vanilla kernel or a 
rtai-patched ubuntu kernel ? Afair the rtai guys always insist on
using vanilla kernels. Ok, that may relate to guaranteeing realtime
responses, not booting at all.

Of course it would be cool to have a live usb-stick (or cd) for testing quad
core machines ;).

Btw, the ubuntu source packages have not been uploaded yet, right ?

Bye,
Wolfgang Koebler


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Re: [Emc-users] emc packages for ubuntu 10.04 lucid lynx ?

2010-07-25 Thread Viesturs Lācis 
2010/7/25 Dave :
> On 7/24/2010 5:10 AM, Andy Pugh wrote:
>> On 24 July 2010 06:48, Sebastian Kuzminsky  wrote:
>>
>>
>>> We don't have a reliable realtime kernel yet for Lucid.
>>>
>> What is unreliable about the experimental kernel? As in, does it not
>> work reliably, or does it not reliably work?
>>
>>
> Mozmck's kernel works fine on Intel based dual core motherboards, the
> Intel 330 based boards and D510 boards.   I have also run it with
> success on a Celeron dual core CPU which was a derivative of the Core2
> Duo family, so I suspect the Core2 Duo CPUs work fine
> with it as well.

Yes, one of my PCs is a D510 board, the other board is some VIA
chipset with AMD Athlon 2200 CPU. And it worked great on that machine.

So I have a question:
Is it possible for EMC developers to publish EMC packages for Lucid
with a note about the compatibility of current RTAI kernel with
different CPUs and let RTAI developers sort that out? As I understand,
then there are overall compatibility issues of Lucid RTAI kernel with
certain CPUs, not EMC compatibility problem with the same CPUs.

I [and, hopefully, other readers of this mailing list] believe that
using quad-core PC for a CNC tool with EMC is a waste of resources,
because almost any single-core machine with 1Ghz cpu clock is capable
of handling EMC, not to mention dual-core machines. So I think that
EMC packages for Lucid with skipped support for quad-core machines
still will be beneficial for vast majority of EMC users (unfortunately
that is my personal opinion which is not supported with any numbers,
statistics etc.).

Viesturs

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Re: [Emc-users] emc packages for ubuntu 10.04 lucid lynx ?

2010-07-24 Thread Dave 
On 7/24/2010 5:10 AM, Andy Pugh wrote:
> On 24 July 2010 06:48, Sebastian Kuzminsky  wrote:
>
>
>> We don't have a reliable realtime kernel yet for Lucid.
>>  
> What is unreliable about the experimental kernel? As in, does it not
> work reliably, or does it not reliably work?
>
>
Mozmck's kernel works fine on Intel based dual core motherboards, the 
Intel 330 based boards and D510 boards.   I have also run it with 
success on a Celeron dual core CPU which was a derivative of the Core2 
Duo family, so I suspect the Core2 Duo CPUs work fine
with it as well.

I have it running on two production machines without any issues..

It is much faster, and just a general improvement over the Ubuntu 9.10 
build that I was using before.

I have found that EMC2, the latest versions, run just fine on an Intel 
330 based, even when using a software based step and direction drive 
interface if you don't need to do 35+ khz.

It seems like the more powerful, 4+ core CPUs have more problems from 
what I have heard.

Dave

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Re: [Emc-users] emc packages for ubuntu 10.04 lucid lynx ?

2010-07-24 Thread Gene Heskett 
On Saturday, July 24, 2010 12:04:21 pm Viesturs Lācis did opine:

> 2010/7/24 s...@highlab.com :
> > I think the issue is the lucid rtai kernel doesn't boot all the
> > computers it's been tried on.  But i dont really know.
> > 
> > It's working fine on the two machines i've
> > tried.
> > 
> > It's available here:
> > http://www.linuxcnc.org/mozmck/
> 
> I also have tried RTAI packages for Lucid from the link above on 2
> different PCs and both times they worked just fine. After that I
> installed EMC 2.4.0 and also 2.5~pre and both of these versions are
> working great with these packages.
> 
> Viesturs
> 
This is beginning to sound promising!

-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Ain't nothin' an old man can do for me but bring me a message from a young 
man.
-- Moms Mabley

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Re: [Emc-users] emc packages for ubuntu 10.04 lucid lynx ?

2010-07-24 Thread Viesturs Lācis 
2010/7/24 s...@highlab.com :
> I think the issue is the lucid rtai kernel doesn't boot all the computers 
> it's been tried on.  But i dont really know.
>
> It's working fine on the two machines i've
> tried.
>
> It's available here:
> http://www.linuxcnc.org/mozmck/
>

I also have tried RTAI packages for Lucid from the link above on 2
different PCs and both times they worked just fine. After that I
installed EMC 2.4.0 and also 2.5~pre and both of these versions are
working great with these packages.

Viesturs

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Re: [Emc-users] emc packages for ubuntu 10.04 lucid lynx ?

2010-07-24 Thread s...@highlab.com 
I think the issue is the lucid rtai kernel doesn't boot all the computers it's 
been tried on.  But i dont really know.

It's working fine on the two machines i've
tried.

It's available here:
http://www.linuxcnc.org/mozmck/

-- 
Sebastian Kuzminsky

- Reply message -
From: "Andy Pugh" 
Date: Sat, Jul 24, 2010 03:10
Subject: [Emc-users] emc packages for ubuntu 10.04 lucid lynx ?
To: "Enhanced Machine Controller (EMC)" 

On 24 July 2010 06:48, Sebastian Kuzminsky  wrote:

> We don't have a reliable realtime kernel yet for Lucid.

What is unreliable about the experimental kernel? As in, does it not
work reliably, or does it not reliably work?

-- 
atp

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Re: [Emc-users] emc packages for ubuntu 10.04 lucid lynx ?

2010-07-24 Thread Andy Pugh 
On 24 July 2010 06:48, Sebastian Kuzminsky  wrote:

> We don't have a reliable realtime kernel yet for Lucid.

What is unreliable about the experimental kernel? As in, does it not
work reliably, or does it not reliably work?

-- 
atp

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Re: [Emc-users] emc packages for ubuntu 10.04 lucid lynx ?

2010-07-23 Thread Sebastian Kuzminsky 
On 07/23/2010 04:34 AM, wk-l...@koebler.com wrote:
> Are there any plans by now, when emc packages for ubuntu 10.04 should
> be available ?
>

I just added Lucid (Ubuntu 10.04) packages of emc2, in Simulation 
*only*, to the buildbot: http://emc2-buildbot.colorado.edu/~buildmaster/

We don't have a reliable realtime kernel yet for Lucid.

-- 
Sebastian Kuzminsky

"If we stopped pretending to be puppets of an invisible
hand, we would not fret over the loss of the 20th century's
strings. We might see that life is sweet."  -- Bruno Argento



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