9. Reserving compute nodes

9.1. Node reservation method

Select "Manage your group" from the side menu, followed by "Detailed Display" of the point group to be used, and "configuration" button of the "node reservation option to use" section to open the "Node reservation setting" page.

Use the "Node Reservation" section at the bottom of this "Node Reservation" page to reserve compute nodes.

Node reservation setting

Item Description
period Start Specify the start date and time of the reservation.
period end Specify the end date and time of the reservation.
Time(hour) You can specify the duration by hour.
Day You can specify the duration by the number of days.
Resources Specify the number of nodes to reserve.
Comment Optional comment field to leave description.
Confirm Reservation Check the system whether the requested reservation is available.

By clicking "Confirm Reservation," the following confirmation dialog will be displayed. Check the reservation period and point consumption displayed in the dialog and click "Accept the above, reserve" to complete the reservation.

After the reservation is completed, it may take a few minutes before the reservation data appearing in the list.

To search the existing reservation, you can display the reservation information by specifying the search condition from the "Reservation node search condition" in the same screen and clicking "Search."

Item Description
AR ID The ID number of the reservation.
Node The number of reserved nodes.
CPU The number of CPU cores of the reserved node.
GPU The number of GPUs of reserved nodes.
Time(h) The duration of the reservation in hour.
reservation The date and time when the reservation was made.
START Start date and time of the reservation.
END End date and time of the reservation.
STATE The status of the reserved node.

9.2. Cancel reservation

Select "Manage your group" from the side menu, followed by "Detailed Display" of the point group to be used, and "Cancel" button of the "node reservation option to use" to open the "Reserved node Cancel" page.

By using "Reserved node search" in this "Reserved node cancel" page, you can see the list of reservation that can be canceled at that time. Select the checkbox of the reservation to cancel, and click "Cancel reservation" to cancel the reservation.

Reservations which start within 24 hours cannot be canceled.

Cancel operation

Item Description
Search Search for a reserved node that can be canceled.
Choice Select the reservation node to cancel.
AR ID Indicates the ID number of the reserved node.
Node Indicates the number of reserved nodes.
CPU Shows the number of CPU cores in the reserved node.
GPU Indicates the number of GPUs of reserved nodes.
Time(h) Indicates the utilization time of the reserved node.
STATE Indicates the reserved node status.
r: Running / w: Waiting / E: Stopping / W: Preparing / d: Deleting
Reservation date Specify the date and time when the node reservation was made.
Start using Indicates the start date and time of the reserved node.
End of use Indicates the end date and time of the reserved node.
POINT Indicates the point of the reserved node.
Cancel reservation Cancel the reservation node whose check box is checked.

9.3. Check reservations

Select "Reserved node list" from the side menu to open the "Reserved node list" page.

In this screen, the reservation information of the group selected in "Group selection" in the upper right of the page will be displayed.

Cumulative display

Item Description
Node Indicates the total number of nodes of the current reserved node.
Reservation time(h) Indicates the current total reservation time.
Point of use Displays the currently active node and the total number of points on reserved nodes 24 hours before the start.
(provisional point) If there is a cancelable node in the reserved node, it indicates the temporary point total of the reservation node.

In the following GUI, specify conditions for searching for reserved nodes.

Reserved node search conditions

Item Description
Fiscal year Specify the fiscal year range to be searched.
AR ID Specify the ID number of the reserved node.
Node Specify the number of reserved nodes.
CPU Specify the number of CPU cores of the reserved node.
GPU Specify the number of GPUs of reserved nodes.
Time(h) Specify the set time for using reserved nodes.
reservation Specify the date and time when the node reservation was made.
START The reserved node specifies the start date and time.
END The reserved node specifies the end date and time.
STATE Specify the status of the reserved node.
Search Button We search based on specified condition contents.

About reserved node list color

Item Description
Light yellow It indicates the state within 5 minutes after reservation.
In this state, cancellation is possible, all points at the time of reservat\
ion are returned.
Light green Indicates a reserved node that has exceeded 5 minutes after reservation and has not reached 24 hours before the start.
In this state, \
cancellation is possible, half points at the time of reservation will be returned.
Light blue Indicates the reserved node in the state within 24 hours before the start. In this state, it can not be canceled.
Blue Indicates the reserved node that is currently in operation.
In this state, it can not be canceled.

Reserved node list display items

Item Description
AR ID Indicates the ID number of the reserved node.
Node Indicates the number of reserved nodes.
CPU Shows the number of CPU cores in the reserved node.
GPU Indicates the number of GPUs of reserved nodes.
Time(h) Indicates the utilization time of the reserved node.
STATE Indicates the reserved node status.
r: Running / w: Waiting / E: Stopping / W: Preparing / d: Deleting
Reservation date Specify the date and time when the node reservation was made.
Start using Indicates the start date and time of the reserved node.
End of use Indicates the end date and time of the reserved node.
POINT Indicates the point of the reserved node.

To check the availability of node reservation for the current month, use t3-user-info compute ars on the login node.
For more detail, please refer to TSUBAME 3.0 User's Guide.