Re: [O-MPI devel] pml vs bml vs btl

2005-09-03 Thread Rich L. Graham
Brad, On Sep 2, 2005, at 6:17 PM, Brad Penoff wrote: hey Jeff/Galen, Thanks to both of you for helping answer our questions, both on and off the list. Currently, we're doing a lot of writing trying to focus on MPI implementation design strategies, so this has helped us certainly; hopefully

Re: [O-MPI devel] pml vs bml vs btl

2005-09-02 Thread Brad Penoff
hey Jeff/Galen, Thanks to both of you for helping answer our questions, both on and off the list. Currently, we're doing a lot of writing trying to focus on MPI implementation design strategies, so this has helped us certainly; hopefully others too. On our end, generally, we've been trying

Re: [O-MPI devel] pml vs bml vs btl

2005-08-31 Thread Galen M. Shipman
On Aug 31, 2005, at 1:06 PM, Jeff Squyres wrote: On Aug 29, 2005, at 9:17 PM, Brad Penoff wrote: PML: Pretty much the same as it was described in the paper. Its interface is basically MPI semantics (i.e., it sits right under MPI_SEND and the rest). BTL: Byte Transfer Layer; it's the next g

Re: [O-MPI devel] pml vs bml vs btl

2005-08-31 Thread Jeff Squyres
On Aug 29, 2005, at 9:17 PM, Brad Penoff wrote: PML: Pretty much the same as it was described in the paper. Its interface is basically MPI semantics (i.e., it sits right under MPI_SEND and the rest). BTL: Byte Transfer Layer; it's the next generation of PTL. The BTL is much more simple tha

Re: [O-MPI devel] pml vs bml vs btl

2005-08-29 Thread Brad Penoff
Greetings, Thanks for the clarity. I just had a few quick follow-up questions, inline below. brad On Sat, 27 Aug 2005, Jeff Squyres wrote: Particularly, I'm just curious about the difference between pml-bml-btl and the old pml-ptl (as described in your TEG paper) and why changes were made.

Re: [O-MPI devel] pml vs bml vs btl

2005-08-27 Thread Jeff Squyres
On Aug 26, 2005, at 5:52 PM, Brad Penoff wrote: I was just curious about the distinction between the pml, bml, and btl layers within OpenMPI and was wondering if there was any place (other than the code ;-) where I could read about the design decisions. Any pointers? Unfortunately, not yet.

[O-MPI devel] pml vs bml vs btl

2005-08-26 Thread Brad Penoff
Greetings, I was just curious about the distinction between the pml, bml, and btl layers within OpenMPI and was wondering if there was any place (other than the code ;-) where I could read about the design decisions. Any pointers? Particularly, I'm just curious about the difference between p