What is the name of the core-to-core transport mechanism used in Intel XEON processors?
A. Quick Path Interconnect
B. Crossbar switch
C. Hyper Transport
D. Northbridge
Correct Answer: A
Explanation/Reference:
Explanation:
The way I understand it, Crossbar is not a technology name, but a switch that assist in communication between processors, memory etc, allowing inter core & inter CPU communication. QPI, FSB & HT are all types of connections, connected to crossbar switches. All the answers are connected to crossbards, but only Intel has QPI. I would still go with QPI
www.site.uottawa.ca/~mbolic/ceg4131/Report Crossbar switches.pdf
A. Intel Xeon 7500 architecture
The Intel Xeon 7500 series processor architectures uses an 8 port crossbar switch which implements the Intel QuickPath Interconnect (QPI) and routing layers. The Intel QPI is point-point interconnection link developed by Intel [1] to compete with HyperTransport. Prior to using QPI the Intel architecture was using the Front Side Bus (FSB) [2] which was the bus that carried data between CPU and the memory controller(northbridge) and I/O controller (southbridge).
The off-chip single memory controller often was the bottleneck which prevented faster CPUs from improving the overall performance of the system. Now, with crossbar implementation the microprocessor were able to integrate the northbridge on-chip for faster access As well: (Thanx MaaShar from Belgium)
http://www.intel.com/content/www/us/en/io/quickpath-technology/quickpath-technology-general.html
Intel® QuickPath Technology uses Intel® QuickPath Interconnect, which provides high-speed, point-to-point links inside and outside of the processor. In contrast to parallel buses, these links speed up data transfers by connecting distributed shared memory, the internal cores, the I/O hub, and other Intel® processors.
Explanation/Reference:
Explanation:
The way I understand it, Crossbar is not a technology name, but a switch that assist in communication between processors, memory etc, allowing inter core & inter CPU communication. QPI, FSB & HT are all types of connections, connected to crossbar switches. All the answers are connected to crossbards, but only Intel has QPI. I would still go with QPI
www.site.uottawa.ca/~mbolic/ceg4131/Report Crossbar switches.pdf
A. Intel Xeon 7500 architecture
The Intel Xeon 7500 series processor architectures uses an 8 port crossbar switch which implements the Intel QuickPath Interconnect (QPI) and routing layers. The Intel QPI is point-point interconnection link developed by Intel [1] to compete with HyperTransport. Prior to using QPI the Intel architecture was using the Front Side Bus (FSB) [2] which was the bus that carried data between CPU and the memory controller(northbridge) and I/O controller (southbridge).
The off-chip single memory controller often was the bottleneck which prevented faster CPUs from improving the overall performance of the system. Now, with crossbar implementation the microprocessor were able to integrate the northbridge on-chip for faster access As well: (Thanx MaaShar from Belgium)
http://www.intel.com/content/www/us/en/io/quickpath-technology/quickpath-technology-general.html
Intel® QuickPath Technology uses Intel® QuickPath Interconnect, which provides high-speed, point-to-point links inside and outside of the processor. In contrast to parallel buses, these links speed up data transfers by connecting distributed shared memory, the internal cores, the I/O hub, and other Intel® processors.
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