QM400 and open-ssi

hi all,

These developments at Open-SSI past few years are really very  
promising. Great stuff!

I have a rather embarrassing question (revealing my layman ship  
regarding open-ssi despite being for years
at the mailing list now).

If i add a quadrics QM400 driver (patch to kernel),
is it possible then somehow to get to work open-ssi 1.92 over the  
qm400 cards?

When needed i'm prepared to do effort there, if i knew what.

Even if it would require first boot over tcp/ip. I'm interesting in  
getting it to work somehow.

My chessprogram Diep uses shared memory. Ideally each process  
allocates its own shared memory and attaches to each
other process the shared memory. Each process is basically  
calculating within its own chunk of shared memory,
so that shared memory must get allocated at the node where the  
process was started.

Sometimes processes reference shared memory at remote nodes. The  
important thing is that open-ssi gets that reference from
the remote nodes over the QM400 network and not over the tcp/ip  
network. Latency is important. Then i can get world champion
computerchess next month in China with quadrics.

I see by the way it has kernel 2.6.11. This might be a problem unless  
when this is a vanilla kernel.
I see quadrics has support for vanilla kernel 2.6 to integrate its  
driver into the kernel (with a source code patch and
building modules after that).

Especially i see it support vanilla 2.6.18 kernel.

Is that a problem?

Best regards,
Vincent




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