Brock Palen wrote:

I was asked by mirycom to run a test using the data reliability pml. (dr) I ran it like so:

$ mpirun  --mca pml dr -np 4 ./xhpl

Is this the right format for running the dr pml?

This should be fine, yes.
I can running HPL on our test cluster to see if something is wrong with DR.
I assume you are using GM and not MX?
Can you try running a simple ping-pong to make sure we have the basics on this platform? If you have access to them, running the intel test suite would also be helpful in determining if/where we have an issue.

Is there any gotchas on using the dr pml?
also if the dr pml is finding errors, and is resending data, can i have it tell me when that happens? Like a verbose mode?

Unfortunately you will need to update the source and recompile, try:

Updating this file: topdir/ompi/mca/pml/dr/pml_dr.h:245:#define MCA_PML_DR_DEBUG_LEVEL -1
And change MCA_PML_DR_DEBUG_LEVEL to 0..

I also tried the following (just praying)  That it might work,

$ mpirun  --mca pml dr --mca btl ^gm -np 4 ./xhpl

You are telling Open MPI not to use GM in this case...

I still get no output to the screen.

This is on G5 xserve, with 1.2b1 OMPI.

Brock Palen
Center for Advanced Computing
bro...@umich.edu
(734)936-1985


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