Cpu; Quickpath Interconnect (Qpi); Hyper Threading Technology Function - Fujitsu PRIMEQUEST 2000 Series General Description Manual

CHAPTER 1 Product Overview
1.4 Hardware technologies
Remarks
SVAS should be installed to monitor for any error in the PCI Express card (*1).
*1： Since firmware monitor SAS RAID controller cards, monitoring SAS RAID controller cards and HDD or
SSD can be done without installing SVAS.

1.4.1 CPU

The CPU is mounted with the Intel ® Xeon ® processor E7 v2 product family in the PRIMEQUEST 2000
series.
In all models, a mix installation of CPU having different number of cores is supported in a cabinet, as long as
those CPUs are restricted to the product number supported by the respective model.
For details on the conditions of mix installation of CPUs in the cabinet, see 'G.1 CPU' of "PRIMEQUEST
2000 Series Administration Manual" (C122-E175EN).

Hyper Threading Technology Function

The PRIMEQUEST 2000 series supports the Hyper Threading Technology function.
For details on the Hyper Threading Technologies functions, see
Function'.
Intelligent Power Technologies
The PRIMEQUEST 2000 series supports the following Intelligent Power Technologies.
- Enhanced Halt State
This function reduces the CPU power consumption by lowering the core/ clock frequency ratio and core
voltage of the CPU in the idle mode, according to the instructions of the OS.
- Demand Based Switching
This function changes the combination of operating voltage and the clock of the CPU, called the P-State
to reduce the power consumption.
- Turbo Boost Technology
When more than one CPU core is idle, this function increases the frequency of the running CPU core to
a higher than specified frequency, within the Thermal Design Power (TDP) range.
Enhanced Speed Step
Enhanced Speed Step is a function that changes the operating frequency according to the load of each core
in the CPU. It has the following features.
- Each socket in the partition can have different frequency each other.
- Cores in the Socket can have only same frequency.
The default value is "enabled"

1.4.2 QuickPath Interconnect (QPI)

The PRIMEQUEST 2000 series uses a high-speed system bus called Intel ® Quick Path Interconnect (QPI)
to communication within the SB and between CPUs.
The resource can be increased by connecting peer CPUs by the QPI.
1.4.3 Hyper Threading Technology Function
PRIMEQUEST 2000 series supports the function of hyper-threading technology. In hyper threading
technology function, a single processor core does the work of multiple processor cores when viewed from
the OS, thereby improving CPU performance.
This function supports up to two threads per core and up to 30 threads for each CPU (15 cores).
Enabled/disabled of the [Hyper-Threading] is set from the [CPU configuration] menu of the UEFI.
- Enabled (Default value)
- Disabled
For details on the hyper threading technology function settings, see '3.4.4 [CPU Configuration] menu' in the
"PRIMEQUEST 2000 Series Tool Reference" (C122-E177EN).
'1.4.3 Hyper Threading Technology
13 C122-B025-02EN