Reservation tracking allows you to configure a dynamic job to be a certain size at a certain time. Reservations allow you to specify how many (or which specific) nodes a job should use at certain times. These reservations are standing reservations that you configure in the moab.cfg file.
For example, consider an application with three defined reservations that is heavily used during the afternoon:Reservation 1: (12:00 a.m. - 12:00 p.m.)—node001, node002, node003, node007
The application is then configured to track the reservation.At 12:00 a.m., it uses 4 nodes—node001, node002, node003, node007.
A dynamic partition can also be configured to use reservation tracking. This allows the system to change the operating system pools according to a calendar.
The following parameters are required. The example used is our hybrid cluster.
Configure the job to use partition tracking. This is the dynamic job associated with the partition for a dynamic partition. ADVRES specifies the name of the reservation group the job will track.
In addition to normal parameters, each reservation must define the following:
SRCFG[RG1S1] PARTITION=ALL SRCFG[RG1S1] RSVGROUP=RG1 SRCFG[RG1S1] COMMENT="Resource Group 1 Step 1" SRCFG[RG1S1] RSVGROUP=RG1 SRCFG[RG1S1] STARTTIME=1:00:00 SRCFG[RG1S1] ENDTIME=12:00:00 SRCFG[RG1S1] DAYS=MON,TUE,WED,THU,FRI SRCFG[RG1S1] HOSTLIST=CCS1,CCS2 SRCFG[RG1S1] USERLIST=root,user1 SRCFG[RG1S1] PARTITION=ALL SRCFG[RG1S1] FLAGS=BYNAME SRCFG[RG1S2] COMMENT="Resource Group 1 Step 2" SRCFG[RG1S2] RSVGROUP=RG1 SRCFG[RG1S2] STARTTIME=12:00:00 SRCFG[RG1S2] ENDTIME=17:00:00 SRCFG[RG1S2] DAYS=MON,TUE,WED,THU,FRI SRCFG[RG1S2] HOSTLIST=CCS1,CCS2,LAB1 SRCFG[RG1S2] TASKCOUNT=6 SRCFG[RG1S2] USERLIST=root,user1 SRCFG[RG1S2] PARTITION=ALL SRCFG[RG1S2] FLAGS=BYNAME SRCFG[RG1S3] COMMENT="Resource Group 1 Step 3" SRCFG[RG1S3] RSVGROUP=RG1 SRCFG[RG1S3] STARTTIME=17:00:00 SRCFG[RG1S3] ENDTIME=12:00:00 SRCFG[RG1S3] DAYS=MON,TUE,WED,THU,FRI SRCFG[RG1S3] HOSTLIST=CCS1,CCS2 SRCFG[RG1S3] TASKCOUNT=4 SRCFG[RG1S3] USERLIST=root,user1 SRCFG[RG1S3] PARTITION=ALL SRCFG[RG1S3] FLAGS=BYNAME