ARMCI problem on SGI Altix


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3:34:17 PM PDT - Thu, Apr 7th 2011
Quote:Bert Apr 1st 6:11 pm
Lets go step by step here:

Tell me about your cluster. What are the processors, what is the interconnect?

Bert


It's the SGI Altix 350 Cluster with 16 Itanium processors

cat /proc/cpuinfo
...
processor  : 15
vendor     : GenuineIntel
arch       : IA-64
family     : Itanium 2
model      : 1
revision   : 5
archrev    : 0
features   : branchlong
cpu number : 0
cpu regs   : 4
cpu MHz    : 1500.000000
itc MHz    : 1500.000000
BogoMIPS   : 2239.75


The interconnect is NUMAlink, according to the SGI website:

Quote:

High-performance, shared-memory SGI® NUMAlink® interconnect for unparalleled I/O at 6.4GB/second


Some more info:

uname -a
Linux (...) 2.4.21-sgi305rp05041818_10155 #1 SMP Mon Apr 18 19:04:07 PDT 2005 ia64 ia64 ia64 GNU/Linux