# Latest

**URL:** https://wlcg-discourse.web.cern.ch/latest.md

[Latest](https://wlcg-discourse.web.cern.ch/latest.md) · [Categories](https://wlcg-discourse.web.cern.ch/categories.md)

---

## [Welcome to Discourse](https://wlcg-discourse.web.cern.ch/t/welcome-to-discourse/7)

<div class="topic-metadata">

**Author:** [@system](https://wlcg-discourse.web.cern.ch/u/system)\
**Replies:** 0\
**Last updated:** [February 6, 2020, 2:13pm UTC](https://wlcg-discourse.web.cern.ch/t/welcome-to-discourse/7 "2020-02-06T14:13:44Z")

</div>

The Worldwide LHC Computing Grid (WLCG) project is a global collaboration of around 170 computing centres in more than 40 countries, linking up national and international grid infrastructures: https://wlcg.web.cern.ch/ …

---

## [How to select a long-lived stable version of hep-benchmark-suite](https://wlcg-discourse.web.cern.ch/t/how-to-select-a-long-lived-stable-version-of-hep-benchmark-suite/195)

<div class="topic-metadata">

**Author:** [@rptaylor](https://wlcg-discourse.web.cern.ch/u/rptaylor)\
**Replies:** 2\
**Last updated:** [May 10, 2024, 6:56am UTC](https://wlcg-discourse.web.cern.ch/t/how-to-select-a-long-lived-stable-version-of-hep-benchmark-suite/195 "2024-05-10T06:56:45Z")

</div>

Hello, I was running HS basically like this: git clone https://gitlab.cern.ch/hep-benchmarks/hep-benchmark-suite.git ./hep-benchmark-suite/examples/hepscore/run\_HEPscore.sh -s "Site" -d $WORK\_DIR However instead of us…

---

## [Significant improvement in EL9 vs EL7](https://wlcg-discourse.web.cern.ch/t/significant-improvement-in-el9-vs-el7/194)

<div class="topic-metadata">

**Author:** [@estambul](https://wlcg-discourse.web.cern.ch/u/estambul)\
**Replies:** 3\
**Last updated:** [May 8, 2024, 2:40pm UTC](https://wlcg-discourse.web.cern.ch/t/significant-improvement-in-el9-vs-el7/194 "2024-05-08T14:40:35Z")

</div>

Hi all, We’re preparing to transition from CentOS7 to AlmaLinux9 soon. I installed the two OSes side-by-side on a new box (Asus ESC4000-E11, dual Xeon Gold 6530 @ 2.10GHz with 64 hardware cores in total). To my great su…

---

## [Use of OMP\_NUM\_THREADS](https://wlcg-discourse.web.cern.ch/t/use-of-omp-num-threads/179)

<div class="topic-metadata">

**Author:** [@estambul](https://wlcg-discourse.web.cern.ch/u/estambul)\
**Replies:** 5\
**Last updated:** [April 11, 2024, 2:26pm UTC](https://wlcg-discourse.web.cern.ch/t/use-of-omp-num-threads/179 "2024-04-11T14:26:53Z")

</div>

Hello, I think it would be nice to use the OMP\_NUM\_THREADS environment setting to effectively limit the number of cores in the benchmarks. Or any other means to define it without having to write an entire custom config …

---

## [HEPScore uses wrong registry with docker container](https://wlcg-discourse.web.cern.ch/t/hepscore-uses-wrong-registry-with-docker-container/190)

<div class="topic-metadata">

**Author:** [@leggett](https://wlcg-discourse.web.cern.ch/u/leggett)\
**Replies:** 1\
**Last updated:** [March 28, 2024, 8:29am UTC](https://wlcg-discourse.web.cern.ch/t/hepscore-uses-wrong-registry-with-docker-container/190 "2024-03-28T08:29:06Z")

</div>

When hepscore is run and a docker container is chosen via the “-m docker” command line arg, the wrong registry is used. The config file shows registry: oras://gitlab-registry.cern.ch/hep-benchmarks/hep-workloads-sif wh…

---

## [Problems running hepscore from Lustre file system](https://wlcg-discourse.web.cern.ch/t/problems-running-hepscore-from-lustre-file-system/188)

<div class="topic-metadata">

**Author:** [@ake\_sandgren](https://wlcg-discourse.web.cern.ch/u/ake_sandgren)\
**Replies:** 2\
**Last updated:** [March 14, 2024, 8:33am UTC](https://wlcg-discourse.web.cern.ch/t/problems-running-hepscore-from-lustre-file-system/188 "2024-03-14T08:33:08Z")

</div>

When running hepscore from a Lustre file system the container (apptainer) fails to actually run. This is caused by the unshared container being on the Lustre file system. There should be an option to either not set at …

---

## [Running hepscore with podman](https://wlcg-discourse.web.cern.ch/t/running-hepscore-with-podman/186)

<div class="topic-metadata">

**Author:** [@bdouglas](https://wlcg-discourse.web.cern.ch/u/bdouglas)\
**Replies:** 2\
**Last updated:** [February 28, 2024, 12:53pm UTC](https://wlcg-discourse.web.cern.ch/t/running-hepscore-with-podman/186 "2024-02-28T12:53:48Z")

</div>

Hello, Has anyone been able to run hepscope using podman instead of docker or apptainer? Thanks in advance Regards, Doug Benjamin

---

## [Benchmark failures with hep-score](https://wlcg-discourse.web.cern.ch/t/benchmark-failures-with-hep-score/185)

<div class="topic-metadata">

**Author:** [@drw](https://wlcg-discourse.web.cern.ch/u/drw)\
**Replies:** 2\
**Last updated:** [January 17, 2024, 5:19pm UTC](https://wlcg-discourse.web.cern.ch/t/benchmark-failures-with-hep-score/185 "2024-01-17T17:19:41Z")

</div>

Hi, I’m experimenting with hep-score and while this seemed to work in the past, I’m now seeing a few errors. Firstly here is the recipe we are using to run the benchmarks: screen ulimit -n 1000000 su - job0000 # This m…

---

## [Database Location?](https://wlcg-discourse.web.cern.ch/t/database-location/181)

<div class="topic-metadata">

**Author:** [@meloam](https://wlcg-discourse.web.cern.ch/u/meloam)\
**Replies:** 10\
**Last updated:** [November 15, 2023, 8:04pm UTC](https://wlcg-discourse.web.cern.ch/t/database-location/181 "2023-11-15T20:04:57Z")

</div>

Hello all, Is it possible to view the uploaded benchmarks? Thanks Andrew

---

## [Example for CVMFS benchmark run](https://wlcg-discourse.web.cern.ch/t/example-for-cvmfs-benchmark-run/182)

<div class="topic-metadata">

**Author:** [@thartman](https://wlcg-discourse.web.cern.ch/u/thartman)\
**Replies:** 2\
**Last updated:** [October 16, 2023, 2:37pm UTC](https://wlcg-discourse.web.cern.ch/t/example-for-cvmfs-benchmark-run/182 "2023-10-16T14:37:15Z")

</div>

Hi all, I am looking for an example to run HS23 directly from CVMFS. An entry path to the right repo should be sufficient I guess. Use case would be a quick & dirty benchmarking within containers etc. trying to skip/av…

---

## [Analysis Benchmarks](https://wlcg-discourse.web.cern.ch/t/analysis-benchmarks/177)

<div class="topic-metadata">

**Author:** [@walkerr](https://wlcg-discourse.web.cern.ch/u/walkerr)\
**Replies:** 2\
**Last updated:** [May 8, 2023, 2:45pm UTC](https://wlcg-discourse.web.cern.ch/t/analysis-benchmarks/177 "2023-05-08T14:45:34Z")

</div>

In the context of metrics for analysis facilities, was there any consideration of 1 or more analysis benchmarks? At the node level, the quality of the local disk/ssd will be one factor, but I think more important will be…

---

## [Kubecon / CloudNative Europe 2023 + Batch/HPC Day](https://wlcg-discourse.web.cern.ch/t/kubecon-cloudnative-europe-2023-batch-hpc-day/176)

<div class="topic-metadata">

**Author:** [@rbritoda](https://wlcg-discourse.web.cern.ch/u/rbritoda)\
**Replies:** 0\
**Last updated:** [February 2, 2023, 10:54am UTC](https://wlcg-discourse.web.cern.ch/t/kubecon-cloudnative-europe-2023-batch-hpc-day/176 "2023-02-02T10:54:41Z")

</div>

Hi. Kubecon / CloudNativeCon Europe 2023 will happen April 18-21 in Amsterdam. https://events.linuxfoundation.org/kubecon-cloudnativecon-europe/ The event will be both in person (expected 7000+ attendees) and virtually…

---

## [K8s policy to enforce specific UIDs for pods](https://wlcg-discourse.web.cern.ch/t/k8s-policy-to-enforce-specific-uids-for-pods/173)

<div class="topic-metadata">

**Author:** [@thartman](https://wlcg-discourse.web.cern.ch/u/thartman)\
**Replies:** 1\
**Last updated:** [December 12, 2022, 9:39pm UTC](https://wlcg-discourse.web.cern.ch/t/k8s-policy-to-enforce-specific-uids-for-pods/173 "2022-12-12T21:39:32Z")

</div>

Hi all, has somebody experiences on how to (or if at all) enforce specific UIDs:GIDs for pods to be used by cluster users? I.e., beyond the general policies (how to w. admissions??) to enforce non-root IDs for pods. Do…

---

## [Csi-cvmfs v2.0.0 release - automount and more](https://wlcg-discourse.web.cern.ch/t/csi-cvmfs-v2-0-0-release-automount-and-more/172)

<div class="topic-metadata">

**Author:** [@rbritoda](https://wlcg-discourse.web.cern.ch/u/rbritoda)\
**Replies:** 0\
**Last updated:** [November 29, 2022, 8:10am UTC](https://wlcg-discourse.web.cern.ch/t/csi-cvmfs-v2-0-0-release-automount-and-more/172 "2022-11-29T08:10:17Z")

</div>

Hi. Please note the release of the csi-cvmfs v2.0.0 driver for kubernetes. The main feature is the support for automount, meaning one single storageclass/pvc for all repositories with no additional configuration requir…

---

## [K8s network setups](https://wlcg-discourse.web.cern.ch/t/k8s-network-setups/164)

<div class="topic-metadata">

**Author:** [@thartman](https://wlcg-discourse.web.cern.ch/u/thartman)\
**Replies:** 1\
**Last updated:** [October 24, 2022, 5:27pm UTC](https://wlcg-discourse.web.cern.ch/t/k8s-network-setups/164 "2022-10-24T17:27:56Z")

</div>

Hi all, I am curious how K8s is integrated into the network at your sites (bare metal) and/or on OpenStack, how routing etc. is organized with respect to the underlying layer? E.g., with respect to hw firewalls/zones a…

---

## [Kubecon HPC+Batch Day](https://wlcg-discourse.web.cern.ch/t/kubecon-hpc-batch-day/162)

<div class="topic-metadata">

**Author:** [@rbritoda](https://wlcg-discourse.web.cern.ch/u/rbritoda)\
**Replies:** 0\
**Last updated:** [August 4, 2022, 7:45pm UTC](https://wlcg-discourse.web.cern.ch/t/kubecon-hpc-batch-day/162 "2022-08-04T19:45:01Z")

</div>

Hi. Kubecon NA will host a full Batch+HPC day as a co-located event: Still a couple days to send your submission! Cheers, Ricardo

---

## [Hepscore config](https://wlcg-discourse.web.cern.ch/t/hepscore-config/161)

<div class="topic-metadata">

**Author:** [@aforti](https://wlcg-discourse.web.cern.ch/u/aforti)\
**Replies:** 2\
**Last updated:** [August 3, 2022, 8:42pm UTC](https://wlcg-discourse.web.cern.ch/t/hepscore-config/161 "2022-08-03T20:42:09Z")

</div>

Hi, we have new nodes and I’ve decided to run Hs06 in the usual way but would like to incorporate also hepscore this time. Is there a definite combination of benchmarks? Last time I tried (admitedly several months ago) …

---

## [Recommended Pratices for Container Deployments](https://wlcg-discourse.web.cern.ch/t/recommended-pratices-for-container-deployments/159)

<div class="topic-metadata">

**Author:** [@burt](https://wlcg-discourse.web.cern.ch/u/burt)\
**Replies:** 1\
**Last updated:** [July 21, 2022, 7:48pm UTC](https://wlcg-discourse.web.cern.ch/t/recommended-pratices-for-container-deployments/159 "2022-07-21T19:48:33Z")

</div>

As a result of the recent pre-GDB meeting on Kubernetes, I volunteered to work with Chris Hollowell from BNL on writing a “best practices” document for container deployment to ensure cross-compatibility with Red Hat Open…

---

## [Containerssh.io at the CNCF RUG](https://wlcg-discourse.web.cern.ch/t/containerssh-io-at-the-cncf-rug/156)

<div class="topic-metadata">

**Author:** [@rbritoda](https://wlcg-discourse.web.cern.ch/u/rbritoda)\
**Replies:** 0\
**Last updated:** [May 3, 2022, 1:02pm UTC](https://wlcg-discourse.web.cern.ch/t/containerssh-io-at-the-cncf-rug/156 "2022-05-03T13:02:51Z")

</div>

Hi. Tomorrow’s topic at the CNCF RUG might be of interest to many of us, covering containerssh.io. You can find more details here: See CNCF Research End User Group: containerssh.io at CNCF Research End User Group Chee…

---

## [Kubernetes Batch + HPC Day at Kubecon Europe](https://wlcg-discourse.web.cern.ch/t/kubernetes-batch-hpc-day-at-kubecon-europe/149)

<div class="topic-metadata">

**Author:** [@rbritoda](https://wlcg-discourse.web.cern.ch/u/rbritoda)\
**Replies:** 7\
**Last updated:** [April 14, 2022, 8:47am UTC](https://wlcg-discourse.web.cern.ch/t/kubernetes-batch-hpc-day-at-kubecon-europe/149 "2022-04-14T08:47:49Z")

</div>

Hi. Please note there will be a dedicated co-located event at Kubecon Europe targeting Batch and HPC: This event follows the significant progress happening in Kubernetes to better support our workloads, and targets en…

---

## [How to fetch a WLCG token with scope storage.read:/sometestdir from IAM?](https://wlcg-discourse.web.cern.ch/t/how-to-fetch-a-wlcg-token-with-scope-storage-read-sometestdir-from-iam/151)

<div class="topic-metadata">

**Author:** [@olifre](https://wlcg-discourse.web.cern.ch/u/olifre)\
**Replies:** 4\
**Last updated:** [March 12, 2022, 6:09pm UTC](https://wlcg-discourse.web.cern.ch/t/how-to-fetch-a-wlcg-token-with-scope-storage-read-sometestdir-from-iam/151 "2022-03-12T18:09:05Z")

</div>

Hi together, to make Discourse a bit more alive and not bother the mailing list, I start with a question — trying to test the configuration of our XRootD instance in Bonn, I want to fetch a token with a storage.read:/so…

---

## [Kueue Proposal and the Kubernetes Batch WG](https://wlcg-discourse.web.cern.ch/t/kueue-proposal-and-the-kubernetes-batch-wg/148)

<div class="topic-metadata">

**Author:** [@rbritoda](https://wlcg-discourse.web.cern.ch/u/rbritoda)\
**Replies:** 0\
**Last updated:** [February 15, 2022, 2:54pm UTC](https://wlcg-discourse.web.cern.ch/t/kueue-proposal-and-the-kubernetes-batch-wg/148 "2022-02-15T14:54:04Z")

</div>

Hi. The CNCF Research User Group will cover tomorrow (Feb 16th, 5pm CET/8am PT) the recent Kueue proposal from Google and the work to form a Kubernetes Batch WG. The speaker is Abdullah Gharaibeh from Google. This …

---

## [Announcing the CernVM Workshop 2022](https://wlcg-discourse.web.cern.ch/t/announcing-the-cernvm-workshop-2022/147)

<div class="topic-metadata">

**Author:** [@rapopesc](https://wlcg-discourse.web.cern.ch/u/rapopesc)\
**Replies:** 0\
**Last updated:** [February 7, 2022, 10:24am UTC](https://wlcg-discourse.web.cern.ch/t/announcing-the-cernvm-workshop-2022/147 "2022-02-07T10:24:03Z")

</div>

Dear All, It is our pleasure to announce the CernVM Workshop 2022, which will take place from 12 September to 14 September 2022 at Nikhef, Amsterdam! We are very happy to plan for a workshop with physical presence agai…

---

## [Fix for hep-spec script](https://wlcg-discourse.web.cern.ch/t/fix-for-hep-spec-script/145)

<div class="topic-metadata">

**Author:** [@jbalcas](https://wlcg-discourse.web.cern.ch/u/jbalcas)\
**Replies:** 1\
**Last updated:** [January 11, 2022, 2:08pm UTC](https://wlcg-discourse.web.cern.ch/t/fix-for-hep-spec-script/145 "2022-01-11T14:08:31Z")

</div>

Hi, I have a fix for hep-spec scripts but seems there is no Fork option and contributing.md is empty. What are the options to create a pull requests to Files · master · HEP-Benchmarks / hep-spec · GitLab? Thanks!

---

## [HPC/HTC and Kubernetes / Cloud Native](https://wlcg-discourse.web.cern.ch/t/hpc-htc-and-kubernetes-cloud-native/143)

<div class="topic-metadata">

**Author:** [@rbritoda](https://wlcg-discourse.web.cern.ch/u/rbritoda)\
**Replies:** 1\
**Last updated:** [December 1, 2021, 11:06am UTC](https://wlcg-discourse.web.cern.ch/t/hpc-htc-and-kubernetes-cloud-native/143 "2021-12-01T11:06:41Z")

</div>

Hi. For the upcoming Dec 1st CNCF Research User Group session on HPC/HTC we’ve prepared a questionnaire to end users to get some information to launch the discussion. If you can spend a few minutes please have a look a…

---

## [Remote Images on GKE](https://wlcg-discourse.web.cern.ch/t/remote-images-on-gke/142)

<div class="topic-metadata">

**Author:** [@rbritoda](https://wlcg-discourse.web.cern.ch/u/rbritoda)\
**Replies:** 2\
**Last updated:** [November 5, 2021, 9:35am UTC](https://wlcg-discourse.web.cern.ch/t/remote-images-on-gke/142 "2021-11-05T09:35:16Z")

</div>

Hi. Google/GKE just announced support for image streaming for everything in their artifact registry. This is similar functionality as provided by the containerd stargz remote snapshotter or the cvmfs snapshotter. It use…

---

## [Kubecon Europe (May in Valencia) CFP Open](https://wlcg-discourse.web.cern.ch/t/kubecon-europe-may-in-valencia-cfp-open/141)

<div class="topic-metadata">

**Author:** [@rbritoda](https://wlcg-discourse.web.cern.ch/u/rbritoda)\
**Replies:** 0\
**Last updated:** [October 26, 2021, 12:58pm UTC](https://wlcg-discourse.web.cern.ch/t/kubecon-europe-may-in-valencia-cfp-open/141 "2021-10-26T12:58:17Z")

</div>

Hi. Kubecon Europe (Valencia in May) Call For Proposals is now open. There’s plenty of time until December 17th to submit, but if you’re interested it’s time to think about it. Note there will be for the first time a d…

---

## [Kubernetes 1.24 and dockershim removal](https://wlcg-discourse.web.cern.ch/t/kubernetes-1-24-and-dockershim-removal/140)

<div class="topic-metadata">

**Author:** [@rbritoda](https://wlcg-discourse.web.cern.ch/u/rbritoda)\
**Replies:** 0\
**Last updated:** [October 18, 2021, 6:16am UTC](https://wlcg-discourse.web.cern.ch/t/kubernetes-1-24-and-dockershim-removal/140 "2021-10-18T06:16:26Z")

</div>

Hi. As you might know kubernetes 1.24 will come with the removal of docker as a container runtime - this is not a big change, it’s just the dockershim that goes so that containerd is used directly: In any case, this i…

---

## [CNCF RUG Upcoming Topics This Year](https://wlcg-discourse.web.cern.ch/t/cncf-rug-upcoming-topics-this-year/139)

<div class="topic-metadata">

**Author:** [@rbritoda](https://wlcg-discourse.web.cern.ch/u/rbritoda)\
**Replies:** 1\
**Last updated:** [October 5, 2021, 6:57pm UTC](https://wlcg-discourse.web.cern.ch/t/cncf-rug-upcoming-topics-this-year/139 "2021-10-05T18:57:57Z")

</div>

Hi. At yesterday’s CNCF Research User Group (RUG) meeting we came up with a schedule until the end of this year. October 6th: Volcano Scheduler for Batch Workloads October 20th: Kubecon Recap November 3rd: SSSD (ORNL) …

---

## [Containers Working Group for HPC Survey](https://wlcg-discourse.web.cern.ch/t/containers-working-group-for-hpc-survey/138)

<div class="topic-metadata">

**Author:** [@rbritoda](https://wlcg-discourse.web.cern.ch/u/rbritoda)\
**Replies:** 2\
**Last updated:** [September 16, 2021, 8:37pm UTC](https://wlcg-discourse.web.cern.ch/t/containers-working-group-for-hpc-survey/138 "2021-09-16T20:37:36Z")

</div>

Hi. The containers WG is preparing a survey on container runtimes for HPC: This is still being prepared, the actual survey will be sent later to end users. In the meantime if you have any input for what they survey sh…

[Next page](https://wlcg-discourse.web.cern.ch/latest.md?page=1)
