Plan Cpu And Memory Allocations - Oracle SuperCluster T5-8 Owner's Manual

Domain Configuration
Related Information
"osc-setcoremem Overview" on page 171
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"Plan CPU and Memory Allocations" on page 175
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"Display the Current Domain Configuration (osc-setcoremem)" on page 178
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"Display the Current Domain Configuration (ldm)" on page 180
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"Change CPU/Memory Allocations (Socket Granularity)" on page 182
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"Change CPU/Memory Allocations (Core Granularity)" on page 186
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"Park Cores and Memory" on page 190
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Plan CPU and Memory Allocations

There are two main approaches to modifying resource allocations:
All resources allocated – You move resources from domains to other domains, and ensure
■
that all resources are allocated.
Some resources are unallocated – You allocate less than the maximum available cores
■
and memory for a compute node. Any unused cores are considered parked cores and are
not counted for licensing purposes. However, parked cores are added to the logical CPU
Supported Resource Allocation Activities
■ Plan how the CPU and memory resources are
allocated to the domains.
■ Reallocate all of the resources across domains at
the socket or core level (a reboot is required if any
dedicated domain resources are changed).
■ Revert to a previous allocation configuration.
Activities you can perform anytime:
■ Configure resources for I/O Domains.
■ Move resources from dedicated domains so that the
resources are available to I/O Domains.
■ Move resources between dedicated domains.
■ Remove a CPU/memory configuration.
Plan CPU and Memory Allocations
Links
"Plan CPU and Memory
Allocations" on page 175
"Change CPU/Memory Allocations (Socket
Granularity)" on page 182
"Change CPU/Memory Allocations (Core
Granularity)" on page 186
"Revert to a Previous CPU/Memory
Configuration" on page 201
Refer to the I/O Domain Administration Guide.
"Park Cores and Memory" on page 190
"Change CPU/Memory Allocations (Socket
Granularity)" on page 182
"Change CPU/Memory Allocations (Core
Granularity)" on page 186
"Remove a CPU/Memory
Configuration" on page 202
Maintaining the System 175