Re: [OMPI devel] THREAD_MULTIPLE

2007-11-28 Thread Terry Dontje 
If the guidelines are made for the BTLs Sun will handle the udapl btl. 


We can also help in testing too.

--td

George Bosilca wrote:
Yes, "us" means UTK. Our math folks are pushing hard for this. I'll 
gladly accept any help, even if it's only for testing. For 
development, I dispose of some of my time and a 100% of a post-doc for 
few months.


However, there are limits to what we can do. We will make sure the BTL 
threading requirements are clearly specified, and we will take care of 
the BTLs we already worked on (TCP, self, SM, MX). I hope that once 
the BTL interface is defined, others can make sure their BTL follow 
the guidelines.


  Thanks,
george.

On Nov 28, 2007, at 1:34 PM, Jeff Squyres wrote:


On Nov 28, 2007, at 1:26 PM, George Bosilca wrote:


There is a priority change for us.


"us" = UTK?


It's definitively time to have a fully supported MPI_THREAD_MULTIPLE
mode in Open MPI. I'm working to figure out how and where to get the
cycles for this. I expect to start working on it in January. So, the
good news is that 1.3 will have thread support.


That will be great.  Do you really think that you can finish the
THREAD_MULTIPLE work by yourself?

Cisco can provide some resources for testing (in the environments that
we care about :-) ), but probably not for development.

--
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Cisco Systems

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Re: [OMPI devel] THREAD_MULTIPLE

2007-11-28 Thread George Bosilca 
Yes, "us" means UTK. Our math folks are pushing hard for this. I'll  
gladly accept any help, even if it's only for testing. For  
development, I dispose of some of my time and a 100% of a post-doc for  
few months.


However, there are limits to what we can do. We will make sure the BTL  
threading requirements are clearly specified, and we will take care of  
the BTLs we already worked on (TCP, self, SM, MX). I hope that once  
the BTL interface is defined, others can make sure their BTL follow  
the guidelines.


  Thanks,
george.

On Nov 28, 2007, at 1:34 PM, Jeff Squyres wrote:


On Nov 28, 2007, at 1:26 PM, George Bosilca wrote:


There is a priority change for us.


"us" = UTK?


It's definitively time to have a fully supported MPI_THREAD_MULTIPLE
mode in Open MPI. I'm working to figure out how and where to get the
cycles for this. I expect to start working on it in January. So, the
good news is that 1.3 will have thread support.


That will be great.  Do you really think that you can finish the
THREAD_MULTIPLE work by yourself?

Cisco can provide some resources for testing (in the environments that
we care about :-) ), but probably not for development.

--
Jeff Squyres
Cisco Systems

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Re: [OMPI devel] THREAD_MULTIPLE

2007-11-28 Thread Jeff Squyres 

On Nov 28, 2007, at 1:26 PM, George Bosilca wrote:


There is a priority change for us.


"us" = UTK?

It's definitively time to have a fully supported MPI_THREAD_MULTIPLE  
mode in Open MPI. I'm working to figure out how and where to get the  
cycles for this. I expect to start working on it in January. So, the  
good news is that 1.3 will have thread support.


That will be great.  Do you really think that you can finish the  
THREAD_MULTIPLE work by yourself?


Cisco can provide some resources for testing (in the environments that  
we care about :-) ), but probably not for development.


--
Jeff Squyres
Cisco Systems

Re: [OMPI devel] THREAD_MULTIPLE

2007-11-28 Thread George Bosilca 
There is a priority change for us. It's definitively time to have a  
fully supported MPI_THREAD_MULTIPLE mode in Open MPI. I'm working to  
figure out how and where to get the cycles for this. I expect to start  
working on it in January. So, the good news is that 1.3 will have  
thread support.


  Thanks,
george.

On Nov 28, 2007, at 1:20 PM, Terry Dontje wrote:


Jeff Squyres wrote:
The MPICH guys presented TCP results with THREAD_MULTIPLE at Euro  
PVM/

MPI and frankly, I was amazed that it worked at all.

I seriously doubt that we're going to advance the state of threading
on the 1.2 series (which is nowhere as close as it is on the 1.3
series).


And 1.3 I think still has a way to go to before one could really say  
it

supports THREAD_MULTIPLE.

--td

On Nov 28, 2007, at 12:21 PM, Richard Graham wrote:



Are there not users that are using THREAD_MULTIPLE successfully, or
is this
on the trunk ?  We know that the code is not where it needs to be,
but if
this takes away current functionality, I would prefer to display a
warning.

Rich


On 11/28/07 11:27 AM, "Jeff Squyres"  wrote:



We've had a few users complain about trying to use THREAD_MULTIPLE
lately and having it not work.

Here's a proposal: why don't we disable it (at least in the 1.2
series)?  Or, at the very least, put in a big stderr warning that  
is

displayed when THREAD_MULTIPLE is selected?

Comments?


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Re: [OMPI devel] THREAD_MULTIPLE

2007-11-28 Thread Terry Dontje 

Jeff Squyres wrote:
The MPICH guys presented TCP results with THREAD_MULTIPLE at Euro PVM/ 
MPI and frankly, I was amazed that it worked at all.


I seriously doubt that we're going to advance the state of threading  
on the 1.2 series (which is nowhere as close as it is on the 1.3  
series).


  
And 1.3 I think still has a way to go to before one could really say it 
supports THREAD_MULTIPLE.


--td

On Nov 28, 2007, at 12:21 PM, Richard Graham wrote:

  
Are there not users that are using THREAD_MULTIPLE successfully, or  
is this
on the trunk ?  We know that the code is not where it needs to be,  
but if
this takes away current functionality, I would prefer to display a  
warning.


Rich


On 11/28/07 11:27 AM, "Jeff Squyres"  wrote:



We've had a few users complain about trying to use THREAD_MULTIPLE
lately and having it not work.

Here's a proposal: why don't we disable it (at least in the 1.2
series)?  Or, at the very least, put in a big stderr warning that is
displayed when THREAD_MULTIPLE is selected?

Comments?
  

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Re: [OMPI devel] THREAD_MULTIPLE

2007-11-28 Thread Jeff Squyres 
The MPICH guys presented TCP results with THREAD_MULTIPLE at Euro PVM/ 
MPI and frankly, I was amazed that it worked at all.


I seriously doubt that we're going to advance the state of threading  
on the 1.2 series (which is nowhere as close as it is on the 1.3  
series).



On Nov 28, 2007, at 12:21 PM, Richard Graham wrote:

Are there not users that are using THREAD_MULTIPLE successfully, or  
is this
on the trunk ?  We know that the code is not where it needs to be,  
but if
this takes away current functionality, I would prefer to display a  
warning.


Rich


On 11/28/07 11:27 AM, "Jeff Squyres"  wrote:


We've had a few users complain about trying to use THREAD_MULTIPLE
lately and having it not work.

Here's a proposal: why don't we disable it (at least in the 1.2
series)?  Or, at the very least, put in a big stderr warning that is
displayed when THREAD_MULTIPLE is selected?

Comments?


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Cisco Systems

Re: [OMPI devel] THREAD_MULTIPLE

2007-11-28 Thread Jeff Squyres 

Ya, the front page needs some updating...

On Nov 28, 2007, at 11:32 AM, Brian W. Barrett wrote:


On Wed, 28 Nov 2007, Jeff Squyres wrote:


We've had a few users complain about trying to use THREAD_MULTIPLE
lately and having it not work.

Here's a proposal: why don't we disable it (at least in the 1.2
series)?  Or, at the very least, put in a big stderr warning that is
displayed when THREAD_MULTIPLE is selected?

Comments?


While you're disabiling it, might also want to remove the bullet  
from the

front page of www.open-mpi.org that suggests we support it...

Brian

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Jeff Squyres
Cisco Systems

Re: [OMPI devel] THREAD_MULTIPLE

2007-11-28 Thread Brian W. Barrett 

On Wed, 28 Nov 2007, Jeff Squyres wrote:


We've had a few users complain about trying to use THREAD_MULTIPLE
lately and having it not work.

Here's a proposal: why don't we disable it (at least in the 1.2
series)?  Or, at the very least, put in a big stderr warning that is
displayed when THREAD_MULTIPLE is selected?

Comments?


While you're disabiling it, might also want to remove the bullet from the 
front page of www.open-mpi.org that suggests we support it...


Brian