Hydra will remain powered up for use during the government shutdown.
The data center will have essential personnel through the shutdown
to maintain the integrity of the IT infrastructure.
Access to Hydra will not be cut off, so users will be able to submit jobs.
Any major failure of the IT infrastructure (hardware or software) is unlikely
to be fixed during the shutdown, hence accessibility to Hydra and its resources
cannot be guaranteed.
Support for Hydra will be limited to urgent matters
please contact SI-HPC-Admin@si.edu during the shutdown.
Hydra has been successfully moved to the new data center and is operational.
Updates are described in detail at the
HPC Wiki 2025 Data Center Move page.
Please take the time needed to read these pages before contacting us for support.
You can view the list of all the available modules:
as an HTML document, or
a plain ASCII text file.
You can also check the bandwidth between
SAO and HDC.
You can select to have this page refreshed every 5m,
20m, or
1hr, this one will auto-refresh every
1hr.
Usage
Current snapshot sorted by nodes'
.
Usage vs time, for length=
and user=
highlighted.
As of Sun Oct 26 08:07:04 2025: #CPUs/nodes 5740/74, 0 down. Loads:
head node: 0.99, login nodes: 0.06, 0.08, 0.10, 0.03; NSDs: 0.07, 0.00, 0.14, 2.95, 2.70; licenses: none used.
Queues status: 9 disabled, none need attention, none in error state.
18 users with running jobs (slots/jobs):
Total number of queued jobs/tasks/slots: 6/1,546/5,461
58 users have/had running or queued jobs over the past 7 days, 70 over the past 15 days.
109 over the past 30 days.
Click on the tabs to view each section, on the plots to view larger versions.
You can view the current cluster snapshot sorted by name, no. cpu, usage, load
or memory, and
view the past load for 7, or 15, or 30 days as well as highlight a given user by
selecting the corresponding options in the drop down menus.
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This page was last updated on Sunday, 26-Oct-2025 08:12:00 EDT
with mk-webpage.pl ver. 7.3/1 (Oct 2025/SGK) in 0:50.
Warnings
Oversubscribed Jobs
As of Sun Oct 26 08:07:07 EDT 2025 (2 oversubscribed jobs, showing no more than 3 per user)
Total running (PEs/jobs) = 2953/1080, 6 queued (jobs), showing only oversubscribed jobs (cpu% > 133% & age > 1h) for all users.
jobID name user age nPEs cpu% queue node taskID
11019690 repeatModelClas medeirosi 08:53 4 135.3% mThC.q 65-09 86
11019690 repeatModelClas medeirosi 08:53 4 133.1% mThC.q 64-07 127
⇒ Equivalent to 2.7 overused CPUs: 8 CPUs used at 134.2% on average.
Inefficient Jobs
As of Sun Oct 26 08:07:09 EDT 2025 (15 inefficient jobs, showing no more than 3 per user)
Total running (PEs/jobs) = 2952/1079, 6 queued (jobs), showing only inefficient jobs (cpu% < 33% & age > 1h) for all users.
jobID name user age nPEs cpu% queue node taskID
11019509 vitis_cactus_si niez +1:05 100 8.7% mThC.q 76-13
11019429 spex-sims fzaidouni +1:14 64 1.5% mThC.q 76-06 1
11019429 spex-sims fzaidouni +1:14 64 2.1% mThC.q 76-05 2
11019429 spex-sims fzaidouni +1:14 64 1.5% mThC.q 76-11 3
(more by fzaidouni)
10961603 spades_5 santossam +3:18 20 8.0% mThM.q 64-17
10961789 spades_1 santossam +3:18 20 7.4% mThM.q 84-01
10253677 Delphinidae_IQT mcgowenm +18:15 12 8.3% lThM.q 84-01
11019696 m_06_m_dem_to_s xuj 08:28 10 10.0% mThM.q 93-02
11019690 repeatModelClas medeirosi 08:53 4 29.8% mThC.q 64-10 146
10947026 bears atkinsonga +3:21 1 0.1% lTWFM.sq 64-15
⇒ Equivalent to 654.4 underused CPUs: 679 CPUs used at 3.6% on average.
To see them all use:
'q+ -ineff -u fzaidouni' (8)
As of Sun Oct 26 08:07:12 EDT 2025
1 job waiting for breusingc:
jobID jobName user age nPEs memReqd queue taskID
--------- --------------- ---------------- ------ ---- -------- ------ -------
11017798 ReadFilter breusingc +2:19 16 64.0 mThC.q 142-402:1
quota rule resource=value/limit %used
------------------- ------------------------------- ------
max_slots_per_user/1 slots=160/840 19.0% for breusingc
max_hC_slots_per_user/2 slots=160/840 19.0% for breusingc in queue mThC.q
max_mem_res_per_user/1 mem_res=640.0G/9.985T 6.3% for breusingc in queue uThC.q
------------------- ------------------------------- ------
5 jobs waiting for jbak:
jobID jobName user age nPEs memReqd queue taskID
--------- --------------- ---------------- ------ ---- -------- ------ -------
11019575 J_20190601T01-u jbak 20:04 1 mThC.q 2958-3747:1
11019731 J_20210601_0445 jbak 07:45 1 mThC.q 471-660:1
11019743 J_20210601_0445 jbak 07:29 1 mThC.q 464-660:1
11019757 J_20241201_0445 jbak 00:44 1 mThC.q 278-330:1
11019758 J_20241201_0445 jbak 00:43 1 mThC.q 276-330:1
quota rule resource=value/limit %used
------------------- ------------------------------- ------
max_slots_per_user/1 slots=762/840 90.7% for jbak
max_hC_slots_per_user/2 slots=762/840 90.7% for jbak in queue mThC.q
max_mem_res_per_user/1 mem_res=1.488T/9.985T 14.9% for jbak in queue uThC.q
------------------- ------------------------------- ------
Overall Quota Usage
quota rule resource=value/limit %used
------------------- ------------------------------- ------
blast2GO/1 slots=83/110 75.5% for *
total_slots/1 slots=2952/5960 49.5% for *
total_mem_res/2 mem_res=8.651T/35.78T 24.2% for * in queue uThM.q
total_mem_res/1 mem_res=9.583T/39.94T 24.0% for * in queue uThC.q
Memory Usage
Reserved Memory, All High-Memory Queues
Select length:
Current Memory Quota Usage
As of Sun Oct 26 08:07:12 EDT 2025
quota rule resource=value/limit %used filter
---------------------------------------------------------------------------------------------------
total_mem_res/1 mem_res=9.583T/39.94T 24.0% for * in queue uThC.q
total_mem_res/2 mem_res=8.651T/35.78T 24.2% for * in queue uThM.q
Current Memory Usage by Compute Node, High Memory Nodes Only
Limit slots for all users together
users * to slots=5960
users * queues sThC.q,lThC.q,mThC.q,uThC.q to slots=5176
users * queues sThM.q,mThM.q,lThM.q,uThM.q to slots=4680
users * queues uTxlM.rq to slots=536
users * queues sTgpu.q,mTgpu.q,lTgpu.q to slots=104
Limit slots/user for all queues
users {*} to slots=840
Limit slots/user for hiMem queues
users {*} queues {sThM.q} to slots=840
users {*} queues {mThM.q} to slots=585
users {*} queues {lThM.q} to slots=390
users {*} queues {uThM.q} to slots=73
Limit slots/user for xlMem restricted queue
users {*} queues {uTxlM.rq} to slots=536
Limit total reserved memory for all users per queue type
users * queues sThC.q,mThC.q,lThC.q,uThC.q to mem_res=40902G
users * queues sThM.q,mThM.q,lThM.q,uThM.q to mem_res=36637G
users * queues uTxlM.rq to mem_res=8063G
Limit reserved memory per user for specific queues
users {*} queues sThC.q,mThC.q,lThC.q,uThC.q to mem_res=10225G
users {*} queues sThM.q,mThM.q,lThM.q,uThM.q to mem_res=9159G
users {*} queues uTxlM.rq to mem_res=8063G
Limit slots/user for interactive (qrsh) queues
users {*} queues {qrsh.iq} to slots=16
Limit GPUs for all users in GPU queues to the avail no of GPUs
users * queues {sTgpu.q,mTgpu.q,lTgpu.q,qgpu.iq} to GPUS=8
Limit GPUs per user in all the GPU queues
users {*} queues sTgpu.q,mTgpu.q,lTgpu.q,qgpu.iq to GPUS=4
Limit GPUs per user in each GPU queues
users {*} queues {sTgpu.q} to GPUS=4
users {*} queues {mTgpu.q} to GPUS=3
users {*} queues {lTgpu.q} to GPUS=2
users {*} queues {qgpu.iq} to GPUS=1
Limit to set aside a slot for blast2GO
users * queues !lTb2g.q hosts {@b2g-hosts} to slots=110
users * queues lTb2g.q hosts {@b2g-hosts} to slots=1
users {*} queues lTb2g.q hosts {@b2g-hosts} to slots=1
Limit total bigtmp concurrent request per user
users {*} to big_tmp=25
Limit total number of idl licenses per user
users {*} to idlrt_license=102
Limit slots for io queue per user
users {*} queues {lTIO.sq} to slots=8
Limit slots for io queue per user
users {*} queues {lTWFM.sq} to slots=2
Limit the number of concurrent jobs per user for some queues
users {*} queues {uTxlM.rq} to no_concurrent_jobs=3
users {*} queues {lTIO.sq} to no_concurrent_jobs=2
users {*} queues {lWFM.sq} to no_concurrent_jobs=1
users {*} queues {qrsh.iq} to no_concurrent_jobs=4
users {*} queues {qgpu.iq} to no_concurrent_jobs=1
Limit slots/user in hiCPU queues
users {*} queues {sThC.q} to slots=840
users {*} queues {mThC.q} to slots=840
users {*} queues {lThC.q} to slots=431
users {*} queues {uThC.q} to slots=143
You can view plots of disk use vs time, for the past 7, 30, or 120 days;
as well as
plots of disk usage by user, or
by device (for the past 90 or 240 days respectively).
Notes
Capacity shows % disk space full and % of inodes used.
When too many small files are written on a disk, the file system can become full because it is
unable to keep track of new files.
The % of inodes should be lower or comparable to the % of disk space used.
If it is much larger, the disk can become unusable before it gets full.