Re: [O-MPI users] [Fwd: Re: The case for an MPI ABI]

2005-03-10 Thread Stuart Midgley
The reason to include it is that it would make integrating with batch systems less of a headache for system administrators. Right now most only support 1 MPI version because this is annoying. Easy integration with a batch system would be a huge bonus. Also, the ability to test a new revisio

Re: [O-MPI users] [Fwd: Re: The case for an MPI ABI]

2005-03-10 Thread Greg Lindahl
On Fri, Mar 11, 2005 at 02:21:58PM +1100, Stuart Midgley wrote: > One major implementation issue is the equivalent of mpirun (which I > assume would be part of an ABI?) - or the startup requirements of > different MPI's. This may or may not be part of an ABI. The reason to not include it is th

Re: [O-MPI users] [Fwd: Re: The case for an MPI ABI]

2005-03-10 Thread Stuart Midgley
First, I think an ABI would be an excellent idea, if only for ease of support on our systems. However, after a quick discussion with a colleague, I have a few concerns. One major implementation issue is the equivalent of mpirun (which I assume would be part of an ABI?) - or the startup requi

Re: [O-MPI users] [Fwd: Re: The case for an MPI ABI]

2005-03-10 Thread Greg Lindahl
On Thu, Mar 10, 2005 at 11:49:52AM -0500, Larry Stewart wrote: > The presentation ignores the issue of instruction set. Even within > the x86 family we have IA-32, EMT 64, and AMD-64. Larry, Thanks for sending some interesting comments. The presentation wasn't intended to be all things to all

Re: [O-MPI users] [Fwd: Re: The case for an MPI ABI]

2005-03-10 Thread Larry Stewart
Toon Knapen wrote: Greg Lindahl wrote: http://www.openib.org/docs/oib_wkshp_022005/mpi-abi-pathscale-lindahl.pdf mostly talks about why we need an ABI, who wins and loses as a result of having one, and the pieces that could be in it. Please give it a look. The presentation ignores the issue

[O-MPI users] [Fwd: Re: The case for an MPI ABI]

2005-03-10 Thread Toon Knapen
As posted on comp.parallel.mpi, I also wanted to forward this message to us...@open-mpi.org because I think it is relavent to the (undoubtly upcoming) mpich2 <-> open-mpi discussion. Greg Lindahl wrote: The first question is: Does an ABI provide enough benefit for people to care? I care a