TSUBAME4.0 introduces a "Subscription" that allows quasi-exclusive use of computation nodes on a monthly basis.
This service is available only for groups created by intramural users (including collaborators outside of the university) and for Collaborative Use (Academic) groups.
HPCI/JHPCN and for Collaborative Use (Industry) groups are not available.Even if you have purchased a subscription through the TSUBAME Portal, it will be deleted by GSIC.
The main differences from the "pay-for-use" system and "node reservation" that were implemented in TSUBAME 3.0 are as follows.
(Note: For limits that vary from time to time, the maximum is listed. Please refer to the link for details)
| pay-for-use | node reservation | subscription | |
|---|---|---|---|
| Time available | Within 24 hours (until the job is finished) | In 1-hour increments Up to 168 hours (7 days) | In increments of 1 month Up to the end of the fiscal year |
| Nodes that can be secured | Up to 64 nodes | Up to 120 nodes | Up to 2 nodes |
| TSUBAME point consumption (approximate) | 1 time | 1.25 times - 10 times | 10 times |
| If the job is not flowing | Node remains reserved | A job with an execution time of 1 hour or less is executed |
When a node that has been reserved for a subscription job is not in use, it is given over to a pay-for-use job with an execution time of one hour or less.
Therefore, a waiting time of up to one hour may occur between the submission of a job and its execution.
If a job is submitted before the end of the execution of the previous job, the pay-as-you-go job will not be executed in between.
Purchase of Subscription / Usage Fees
To use a subscription node, you must purchase a subscription right in the month prior to the month of use.
Switching of subscription node settings occurs at 12:00 on the first business day of the month.
The deadline for purchase is 12:00 on the second business day prior to the first day of the month of usage.
Please refer to the TSUBAME Portal User's Guide for purchase operation.
The start date of subscription node use and the deadline for purchase for FY2024 are as follows.
| Apr | May | June | July | Aug | Sep | |
|---|---|---|---|---|---|---|
| Start Date of Use | None | 5/1(Wed) | 6/3(Mon) | 7/1(Mon) | 8/1(Thu) | 9/2(Mon) |
| Purchase deadline | 4/26(Fri) | 5/30(Thu) | 6/27(Thu) | 7/30(Tue) | 8/29(Thu) |
| Oct | Nov | Dec | Jan | Feb | Mar | |
|---|---|---|---|---|---|---|
| Start Date of Use | 10/1(Tue) | 11/1(Fri) | 12/2(Mon) | 1/6日(Mon) | 2/3(Mon) | 3/3(Mon) |
| Purchase deadline | 9/27(Fri) | 10/30(Wed) | 11/28(Thu) | 12/26(Thu) | 1/30(Thu) | 2/27(Thu) |
The fee for a subscription node is 7,200 TSUBAME points per month and per node.
The fee for a group of on-campus users only starting with "tga-" is 450,000 yen.
The node usage fee will not be pro-rated for months when the number of available days is reduced, such as when the start date of use falls on a holiday, or when days are unavailable due to scheduled maintenance, etc., or when nodes are temporarily unavailable for a period of time due to a failure.
Usage rights can be purchased in advance for the following two months and beyond, provided that the same number of nodes are secured consecutively from the following month.
For example, if a purchase is made in April, it is possible to purchase only May, May through August, or May through March of the following year, but not October through March of the following year, in which case it is necessary to wait until September.
How to submit a subscription job
Please specify "-q prior" additionally at qsub. Other options are the same as for a regular job.
[Example]
qsub -q prior -g [TSUBAME group] script-name
Please note that even if the job is a subscription group job, it will be processed as a regular job if -q prior is not specified.