User Manual

Rev 2.1-1.0.6
Mellanox Technologies
129
7.1.3.3 Intel® Nehalem/Westmere Processors
The following table displays the recommended BIOS settings in machines with Intel Nehalem-
based processors.Configuring the Completion Queue Stall Delay.
7.1.3.4 AMD Processors
The following table displays the recommended BIOS settings in machines with AMD based pro-
cessors.
Table 18 - Recommended BIOS Settings for Intel® Nehalem/Westmere Processors
BIOS Option Values
General Operating Mode /Power pro-
file
Maximum Performance
Processor C-States Disabled
Turbo mode Disabled
Hyper-Threading
1
1. Hyper-Threading can increase message rate for multi process applications by having more logical cores. It
might increase the latency of a single process, due to lower frequency of a single logical core when hyper-
threading is enabled.
Disabled
Recommended for latency and message rate
sensitive applications.
CPU frequency select Max performance
Memory Memory speed Max performance
Memory channel mode Independent
Node Interleaving Disabled / NUMA
Channel Interleaving Enabled
Thermal Mode Performance
Table 19 - Recommended BIOS Settings for AMD Processors
BIOS Option Values
General Operating Mode /Power pro-
file
Maximum Performance
Processor C-States Disabled
Turbo mode Disabled
HPC Optimizations Enabled
CPU frequency select Max performance