Hitachi Compute Blade 2000 User Manual page 1079

Note for LPAR configuration
There is a risk that memory access cost will be large in the following two types of LPAR
configurations.
When the physical processor and the physical memory that are assigned to the

LPAR belong to the different nodes.
When the physical processors in more than one node are assigned to LPAR in

dedicated mode, or the memory in more than one node is assigned to LPAR in
dedicated mode.
(a) When the physical processors in more than one node, or memory in more than one
node, are assigned to the LPAR
LPAR1
1way
LPAR2
1way
Dedicated
Physical processor
Socket
Core
Physical memory
Node0
When the physical processor and memory are assigned in a different node.
Avoid the configuration above and configure the LPAR using the physical processor
and physical memory within one node.
Logical processor
Time-shared
Processor group
large
Node1
1028
Memory access
Memory
access cost
When the allocated memory is a remote
memory for the assigned physical
processor (processor group if shared
mode), memory access cost will always
be large