Charging Model

A. HPC Service (Effective from 1 September 2020)

Charge Type Charging Unit Unit Charge(HKD)
PolyU User Collaborator External User
CPU CPU core-hour 0.11 0.22 1.1
GPU GPU card-hour 2.2 4.4 22
Storage 100 GB-month 2.3 4.6 23

1. BDLab reserves the right determine whether a user should be charged as CPCE User, Collaborators or External User.

2. Users of current CPCE staff and students with a valid CPCE NETID is regarded as “CPCE Users”.

3. Users from other UGC-funded tertiary institutions and users form companies with ongoing collaborative projects with principal investigators at CPCE is regarded as “Collaborators”.

4. Users from commercial companies without ongoing collaborators with CPCE is regarded as “External Users”.

5. All charging rates are subject to change without prior notice. Users should refer to the latest version of this charging scheme, which is available on CPCE webpage (https://bdlab.cpce-polyu.edu.hk/).

6. Charging model will be reviewed yearly.

Assume a user has 200GB storage quota and using the 5,000 HKD free quota, a user can use the resources in the following manner.

For example,

Charge Type Qty Fee(HKD)
CPU fee# 100 CPU-core 4752
Storage (for 1 month) 200 GB 4.6

#CPU fee = 100 CPU core * 24 hours * 18 days * 0.11 HKD  = 4752HKD

Charge Type Qty Fee(HKD)
CPU fee## 10 CPU-core 4752
Storage (for 1 month) 200 GB 4.6

##CPU fee = 10 CPU core * 24 hours * 6 months(180 days) * 0.11 HKD = 4752 HKD

Charge Type Qty Fee(HKD)
CPU fee### 16 CPU-core 802.56
GPU fee@ 4 GPU-card 4012.8
Storage (for 1 month) 200 GB 4.6

###CPU fee = 16 CPU-core * 24 hours * 19 days * 0.11 HKD = 802.56 HKD
@GPU fee = 4 GPU-card * 24 hours * 19 days * 2.2 HKD = 4012.8 HKD

B. Virtual Machine Service

i. CPU and Memory

No. of vCPU No. of Memory(GB) Hourly Rate(HKD)
PolyU User Collaborator External User
2 4 0.30 0.60 3
2 8 0.50 1 5
4 16 1 2 10
8 32 2 4 20
16 64 4 8 40
32 128 8 16 80

ii. Disk

Type Hourly Rate(HKD)
PolyU User Collaborator External User
100 GB per month 22 44 220

C. JupyterHub Service

Free access up to 31 December 2020.

With effect from 1 January 2021:

Hourly Rate (HKD) (Effective from 1 Jan 2021)
PolyU User Collaborator External User
2.8 5.6 28
Free Quota

Annual Max Waived Fee per PolyU PI group on computing resources  (annual review): 5000 HKD

**Charging model will be reviewed yearly