RNA-seq analysis workflow (Salmon, RS1) · run 2026-10-20 11:38–11:42 CEST Workflow Run uri icon

start time

  • October 20, 2026 11:38 AM

end time

  • October 20, 2026 11:42 AM

duration (s)

  • 231

duration time calculation method

  • Slurm ElapsedRaw of the job (start to end). Display timestamps use Europe/Berlin.

run status

  • Succeeded

CPU efficiency (%)

  • 83.0

data read (GB)

  • 13.98773121024

data written (GB)

  • 8.88229855232

CPU time (s)

  • 1917.004

CPU time calculation method

  • Slurm TotalCPU of the job (user + system CPU time of all steps); 10 CPUs allocated of 256 node CPUs.

task count

  • 5

peak memory (GB)

  • 8.443891712

GPU usage status

  • CPU-only job

memory calculation method

  • Peak memory: the largest resident memory (Slurm MaxRSS) of any job step, converted from bytes to gigabytes. No average memory: Slurm does not record memory use over time.

energy consumed (kWh)

  • 0.0024748831925159817

energy measurement coverage

  • 5.2% of the node (shared, estimate)

node power average (W)

  • 723.6

node power maximum (W)

  • 765.0

node sleeping idle power (W)

  • 299.0

node awake idle power (W)

  • 398.3

carbon emission (kg CO2e)

  • 0.0007771133224500182

carbon intensity (kg CO2e/kWh)

  • 0.314

energy metric source

  • Slurm acct_gather_energy/ipmi; Prometheus node_exporter and ipmi_exporter on the compute node

energy calculation method

  • Node energy: Slurm acct_gather_energy/ipmi ConsumedEnergyRaw, 171267 J over the job (231 s, whole node). Job share = job CPU time 1917.0 s / CPU time of all processes on the node in the same interval 36850.2 s (node_exporter node_cpu_seconds_total, all modes except idle and iowait; 24 samples about every 10 s, covering 99% of the job) = 0.0520. Job energy = 171267 J x 0.0520 = 8910 J, converted to kilowatt-hours (1 kWh = 3,600,000 J): 0.002475 kWh. Single node hpc-cms01-012 (HPC@HU), shared with other jobs. Energy is an estimate: the job's CPU-time share of the measured whole-node energy. Idle and other node power is distributed by CPU time; cooling and network are excluded.

carbon calculation method

  • Time-matched: the run's energy 0.002475 kWh x the 15-minute carbon intensity of the grid (Electricity Maps, zone DE, lifecycle, flow-traced) in the quarter-hours the run used, weighted by the run's energy in each quarter-hour (split by power readings; 2026-10-20 09:30 UTC 314 g/kWh x 100.0%) = 314.0 g/kWh, so 0.78 g CO2e. Window start and end are Europe/Berlin times. Recalculated on 2026-11-07: replaces the earlier value 0.71 g CO2e (286.0 g/kWh, Electricity Maps).

idle power method

  • Node hpc-cms01-012 saves energy when nothing runs: its idle processor cores sleep (low-power states), while the node itself stays on and takes new jobs at once. Sleeping idle power: 299 W, the median IPMI power of the node in the cluster monitoring (Prometheus, a reading every 5 s) over the 30 days up to 2026-10-30, counting only times when nothing had run on the node for at least 30 minutes (load below 0.2, both GPUs below 60 W). Awake idle power: 398.3 W, the average IPMI power with the whole node allocated to an empty job while its power was read once a second on the node (Slurm job 1645536, 2026-10-27, 302 readings). The readings keep the cores from sleeping, so the node draws 99 W more. No energy above idle is given for this run: the node's cores sleep when idle, and its idle power without sleep is not known. The node is assumed to have had its current power profile also on the day of the run.

git commit

  • c071811dce8878de67148b0825f1e7fa5c96d982

job name

  • rs1-salmon (Slurm job 1640766, partition standard, exit code 0:0)

container image

  • docker.io/biocontainers/fastp@sha256:36c3841644a023f360c1e33ac2497dc91755d4ace5e2b1162e16304b8f5179d0;
  • docker.io/combinelab/salmon@sha256:13b09d8be8722b786fc954809cdc96e8fa6037e1eb8296120a29c936ab18860b;
  • docker.io/nfcore/rnaseq@sha256:683625354fdcdefaad1a2710e4ba0517ac5316e47dddd6148aa8d685282a857b;
  • docker.io/ninedem/check_strandedness@sha256:1a8e1b00f51f02ad4c7876975d735b9f4ee7c365f1d499eceb3a35fdea8dcdde;

trace types

  • Slurm accounting (sacct); node CPU and IPMI power samples; node hardware inventory; node IPMI temperature readings; Nextflow log; Nextflow task trace

trace data format

  • TSV and plain text

CPUs used

  • 10 of the node's 256 CPUs (hardware threads), on 5 cores of processor 1: CPUs 119-123,247-251. Two hardware threads of a core share that core, so 10 CPUs here are 5 cores of computing power.

fan speed average (rpm)

  • 7958.0

node CPU utilisation average (%)

  • 62.3

node conditions method

  • Node CPU utilisation: CPU time of all processes on the node (node_exporter, all modes except idle and iowait) / (256 CPUs x sampled time) = 62.3% (159.5 of 256 CPUs busy on average). Node power: IPMI power of the node (ipmi_exporter), 24 readings about every 10 s: average 724 W (over time), lowest 690 W, highest 765 W. CPU efficiency: job CPU time 1917 s / (10 allocated CPUs x 231 s) = 83.0%. CPU frequency: current frequency of the 10 CPUs the job could use (/proc/cpuinfo), 24 readings. At each reading the fastest of these CPUs is taken, because the CPUs that are working run fastest: average 2968 MHz, highest 3095 MHz. Average over all of these CPUs, including idle ones: 2884 MHz. Fan speed: IPMI fan sensors of the node (ipmi_exporter), 6 fans, 24 readings: average 7958 rpm (mean of the fans, over time), highest 8520 rpm. Data read and written: Slurm accounting MaxDiskRead and MaxDiskWrite of the job's 1 step(s): 13.988 GB read, 8.882 GB written. This is all data the job's processes read and wrote, on any file system.

workflow engine

language

execution host

  • hpc-cms01-012

node allocatable CPU

  • 256

node allocatable memory (GB)

  • 1081.49413888

node architecture

  • x86_64; 2 x AMD EPYC 7713 64-Core Processor; 256 hardware threads

os image

  • openSUSE Leap 16.0

kernel version

  • 6.12.0-160000.36-default

backend