Hardwares
This section deals with hardwares utilized or considered on building HPC2.
Servers
DELL T7920
Tower workstation
We have one T7920 as our login/master node.
specs
Intel XEON Gold 5120 14 cores 28 threads * 2
256G DDR4 memory
512G SSD
2T HDD*2
Nvidia RTX 2080Ti
DELL PowerEdge R740
2U rack server
We currently have 9 R740 as our computation nodes.
specs
Intel XEON Gold 5120 14 cores 28 threads * 2
128G DDR4 memory for [c1 - c3, c9], 256G DDR4 memory for [c4-c7], 512G DDR4 memory for c8
512G SSD
extra specs
for c8, we have two extra 4T HDD (as hardware raid1)
for c9, we have two extra RTX2080Ti GPU cards and 6 extra 8T HDD (as hardware raid5)
misc
product no., the second digit is for the generation of Dell servers. 4 here is for 14 generation. As for the first digit, it seems that the larger number the more powerful computer it is.
Notes:
Quicksync is optional for this version of server. Seems no quicksync in our machines.
Dell PowerEdge R640
1U rack server
We currently have 5 R640 server as our computation servers. (introduced on 2020.09.23)
c10-c14
specs
Intel XEON 6238R 2.2 GHZ 28 cores 56 threads 38.5M *2
12*32 G 2666 memory
SSD 480G
HDD 4T
Others
Rack
4 post 19 inch width standard(?) rack
UPS
Uninterruptible power supply
control wire?
Switch
Huawei S1720-28GWR-4P
192.168.1.253 is not a static ip. It could be assigned to other ips if there is a DHCP server on the upstream of it.
We currently has two of them, one is used for the main switch of the server room, and the other one is used within our cluster.
Huawei S1700-16G-AC
Ethernet cable
Cat6 2m or 5m
Wireless AP
TP_LINK: as an emegency Lan access.
Hardware knowledges
Jargons
SFP: (small form factor pluggable transceiver), port may be seen on advanced switch or routers. Support 10Gb and Fibre.
Backplane capacity(throughput): some interesting math on switch throughput, sometimes throughput may count in the unit of packets instead of traffic. In general backplane capacity should be larger than 2 times ports number times bandwidth of each ports on switch.
POE: power supply by ethernet cable. see here. PSE: power provider, PD: power consumer.
KVM switch: one IO set control multiple nodes
SAS vs. SATA: see the comparison
Link aggregation: one logical channel with more than one physical channel of ethernet
Port security and isolation: term in switch configuration
General References
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