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Institute of Science Tokyo Charging Rules of TSUBAME4.0 Supercomputer
October 1, 2024
Article 1: Purpose
These rules prescribe the matters necessary for charging usage fees and related matters for the TSUBAME4.0 supercomputer (hereinafter, “TSUBAME4.0”) managed by the Center for Information Infrastructure at Institute of Science Tokyo, pursuant to Article 13, paragraph 3 of the Institute of Science Tokyo Detailed Regulations on Use of Computer Systems (hereinafter, “Detailed Regulations”).
Article 2: Charging Usage Fees
- Usage fees for TSUBAME4.0 shall be charged at the time of purchase of TSUBAME4 points (hereinafter, “Points”) used to access TSUBAME4.0.
- The price of Points shall be as specified in Appended Table 1.
- Points may be purchased on a group basis. In such cases, when the group includes users with different eligibility categories, the highest unit price category applicable within the group shall be applied.
Article 3: Use of Points
Points shall be used for computation nodes, group storage, and applications specified in Appended Tables 6 and 7.
Article 4: Points for Use of Computation Nodes
- Points to be used for computation nodes shall be calculated according to the formulas specified for each category in Appended Table 2. Any fraction less than 1/10,000 of a Point shall be rounded down.
- Coefficients used in the calculation formulas are as specified in Appended Tables 3, 4, and 5 according to resource type, priority, and reservation timing, respectively.
Article 5: Points for Use of Group Storage
- Points for group storage consisting of hard disk drives shall be 0.5 Points per TB per month. The number of files (i-nodes) that can be stored shall be 2,000,000 per TB.
- Points for group storage consisting of SSDs shall be 0.2 Points per 100 GB per month. The number of files (i-nodes) that can be stored shall be 200,000 per 100 GB.
Article 6: Points for Use of Applications
- Points for the use of applications specified in Appended Table 6 on TSUBAME4.0 (per user per month) are as specified in that table.
- Points for the use of applications specified in Appended Table 7 using TSUBAME4.0 licenses on computers in laboratories, etc., on campus (per laboratory per fiscal year) are as specified in that table.
Article 7: Validity Period of Points
Points shall be valid only during the fiscal year in which they are purchased.
Supplementary Provisions
These rules come into force on December 20, 2024, and apply retroactively from October 1, 2024.
Supplementary Provision (Partially revised on March 7, 2025)
These rules come into force on April 1, 2025.
Supplementary Provision (Partially revised on March 24, 2026)
These rules come into force on April 1, 2026.
Appended Table 1 (related to Article 2)
| User Eligibility (as defined in Article 4 of the Detailed Rules) | Unit Price | Points |
|---|---|---|
| Article 4, Paragraph 1, Item i | 1,000 JPY | 16 |
| Article 4, Paragraph 1, Item ii | ||
| Article 4, Paragraph 1, Item iii | ||
| Article 4, Paragraph 1, Item vi | ||
| Article 4, Paragraph 1, Item iv | 1,000 JPY | 5 |
| Article 4, Paragraph 1, Item v | ||
| Article 4, Paragraph 1, Item vii | 100,000 JPY (tax excluded) | 400 |
| Article 4, Paragraph 4 (Results disclosed) | ||
| Article 4, Paragraph 4 (Results undisclosed) | 400,000 JPY (tax excluded) | 400 |
Appended Table 2 (related to Article 4)
| Category | Formula |
|---|---|
| Pay-as-you-go | Points per job = (Number of nodes × Resource type coefficient × Priority coefficient × (0.7 × max(actual runtime (sec), 300) + 0.1 × requested runtime (sec))) ÷ 3,600 |
| Interactive Job Queue | Points per job = (Number of nodes × 0.100 × actual runtime (sec)) ÷ 3,600 However, users defined in Article 4, Paragraph 1, items i and ii of the Detailed Regulations are exempt from these charges. |
| Node Reservation | Points per reservation = Number of nodes × Reservation timing coefficient × Resource type coefficient × Reserved time (hours) |
| Flat-rate | Monthly Points = Number of nodes × 10.0 × 30 × 24 |
Appended Table 3 (related to Article 4)
| Resource Type | Provided Resources | Coefficient |
|---|---|---|
| node_f | 1 node (CPU 192 cores, 4 GPUs) | 1.000 |
| node_h | 1/2 node (CPU 96 cores, 2 GPUs) | 0.500 |
| node_q | 1/4 node (CPU 48 cores, 1 GPU) | 0.250 |
| node_o | 1/8 node (CPU 24 cores, 1/2 GPU) | 0.125 |
| gpu_1 | CPU 8 cores, 1 GPU | 0.200 |
| gpu_h | CPU 4 cores, 1/2 GPU | 0.100 |
| cpu_160 | CPU 160 cores | 0.600 |
| cpu_80 | CPU 80 cores | 0.300 |
| cpu_40 | CPU 40 cores | 0.150 |
| cpu_16 | CPU 16 cores | 0.060 |
| cpu_8 | CPU 8 cores | 0.030 |
| cpu_4 | CPU 4 cores | 0.015 |
Appended Table 4 (related to Article 4)
| Priority | Coefficient |
|---|---|
| 0 | 1.00 |
| 1 | 2.00 |
| 2 | 4.00 |
Appended Table 5 (related to Article 4)
| Reservation Timing | Coefficient | |
|---|---|---|
| April–September | October–March | |
| Up to 14 × 24 hours before slot start | 2.50 | 5.00 |
| After 14 × 24 hours before slot start and up to 24 hours before | 1.25 | 2.50 |
| Less than 24 hours before slot start | 5.00 | 10.00 |
Appended Table 6 (related to Article 6)
| Application | Points (per user per month) |
|---|---|
| ANSYS | 16.0 |
| ABAQUS / ABAQUS CAE | 12.0 |
| AMBER | 8.0 |
| Materials Studio / Discovery Studio | 24.0 |
| Mathematica | 16.0 |
| COMSOL Multiphysics | 16.0 |
| Gaussian / GaussView | 8.0 |
| Schrödinger Small-Molecule Drug Discovery Suite | 24.0 |
Appended Table 7 (related to Article 6)
| Application | Points (per laboratory per fiscal year) |
|---|---|
| ANSYS | 800 |
| Materials Studio / Discovery Studio | 1200 |
| Gaussian / GaussView | 400 |