Dear Bob,
> Are you sure you are not exceeding a file system size
>limit (say 2GB) for mdcrd or mdvel? Possibly file system
>quotas? Possibly full file systems? It would seem it
>almost has to be the file system, somehow, though I
The mdcrd should get not bigger than 180 MB within 50k
steps, as it is a rather small system. Some of the
filesystems i used had over 15 TB of free space, but i
will check for quotas.
>becomes unreachable in the middle of a run, everything
>should freeze up as you observe. I have mostly seen this
>kind of grief with Myrinet, but commodity clusters in
>general are not immune. We had a lot of trouble at unc
>for a while with our big infiniband p4 cluster with nodes
>becoming unreachable; I have no idea whether it was
>hardware burnin problems, config problems, loose
So, if PMEMD runs for some, lets say 5000, steps, with
resonable speed over Infiniband, then everything should be
OK with the compilation?
I will ask the guys at our computing center if they can
help me debugging with the Infiniband cards and/or
connections.
Thanks for your answer,
Fabian
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Received on Sun Jul 02 2006 - 06:07:12 PDT
