5,501 questions
Advice
2
votes
4
replies
69
views
determine cpu after c++ compilation with gcc?
Does anyone know if there is, in c++, any way to determine at runtime the cpu characteristics of the machine that compiled the code? For example, in gcc (which I'm using) the preprocessor variable ...
- 95
0
votes
0
answers
43
views
Snakemake slurm cluster status in version 9.6.3
I am currently using Snakemake version 9.6.3 on a cluster managed by an SLURM scheduler. In previous workflows, I relied on version 6, which supported the --cluster, --cluster-status, and --parsable ...
- 11
0
votes
0
answers
185
views
CRC Status Shows 'OpenShift: Unreachable' Even After Multiple Restarts and Setup
I am trying to run Red Hat CodeReady Containers (CRC) with OpenShift 4.19.8 on an Ubuntu VM (running on VMware).
No matter what I do, crc status always shows:
crc status output (https://i.sstatic.net/...
0
votes
0
answers
110
views
Check if a server is part of an Azure cluster using C# and PowerShell
I am testing some code to check if a named server is part of an Azure cluster. I currently have a simple console application where the user enters the name of the server to check and the code then ...
2
votes
1
answer
71
views
How to identify price regimes / trends in Pandas
I have created the following pandas dataframe, which is an example of 26 stock prices (Open, High, Low, Close):
import pandas as pd
import numpy as np
ds = {
'Date' : ['15/06/2025','16/06/2025','17/...
- 1,762
0
votes
0
answers
13
views
Proxmox migration and autoboot
I migrated my vm from one node to another over the cluster using the migrate function, without having a downtime. Theses vm where set to auto boot. Is this setting is kept trough the migration on a ...
- 325
0
votes
1
answer
105
views
Issue while deploying container in GKE
I am getting this error while deploying in GKE :
Error from server: Get "https://10.x.x.x:10200/containerLogs/server-center/server-center-dev-86f67jkilo-rwrnm/server-center-dev": No agent ...
- 259
-1
votes
1
answer
72
views
Best practices for running high-granularity benchmark [closed]
I am trying to run a benchmark on some family of algorithms.
I have multiple algorithms, each of them with one hyperparameter, and I want to test them with multiple data sizes. Each run takes ~60 ...
- 812
1
vote
0
answers
112
views
"invalid_grant" "Code not valid" in Keycloak with multiple containers using same client
Sorry if this matter was discussed before. I looked for something like that, but found nothing.
We have a scenario where we have a Keycloak, an NGINX proxy, four containers having a monolithic legacy ...
2
votes
1
answer
36
views
Is --nodes 2 (without '=') accepted way of requesting nodes in slurm?
I just realized that I have been always using a slurm script, where in the first line I specify number of nodes in a wrong way. I see two options are either #SBATCH N 2 or #SBATCH --nodes=2. Instead I ...
- 183
0
votes
0
answers
42
views
AWS PCS cluster creation failed with cloud formation
Im creating a complete HPC architecture on AWS using service AWS PCS.
In my cloud formation template literally all resource creation is successful but AWS PCS.
Cluster:
Type: AWS::PCS::Cluster
...
- 121
0
votes
1
answer
148
views
How to determine buddy nodes dependencies in Vertica
How can I find in Vertica (Enterprise mode, K-safety 1) node dependencies so that I could build a node graph like this?
The following query:
select n.name, d.dependency_id
from v_internal....
- 2,941
0
votes
0
answers
61
views
Pacemaker dynamic location constraint with expression
I am experimenting with storage clusters using RHEL9.3 and GFS2 with DRBD replication.
So far I found a stable solution by using 3 nodes for main (one is DRBD Primary and mounts the DRBD disk, while ...
- 11
0
votes
1
answer
159
views
How to utilize multiple CPUs for training of YOLO?
I have access to a large CPU cluster that does not have GPUs. Is it possible to speed up YOLO training by parallelizing between multiple CPU nodes?
The docs say that device parameter specifies the ...
- 163
0
votes
0
answers
104
views
Problem when running custom flink jar application on cluster
I have a little problem when running a custom jar application on a cluster. First, I ran my custom jar application in a local flink installation:
/bin/flink run /home/osboxes/WordCount.jar --input ...
- 137
0
votes
0
answers
33
views
Galera Cluster (on GMD Gui need a refence cmd to Recover Cluster)
Under the cluster Galera Manager Daemon (gmd) gui dropdown there is the Recover Cluster option as shown in the image this work fine but requires me to manually press it:
Recover Cluster Button
What is ...
0
votes
1
answer
63
views
How to add shapefiles and raster files as covariates in spatstat kppm function
I encountered various errors while running the spatstat package. Here is a summary of my data: a shapefile of landslide point events, a watershed shapefile as the observation window, and several ...
0
votes
0
answers
31
views
Pre-staging large data files for parallel job execution
Apologies in advance if this is a mundane or unclear question.
I want to scale up a workflow on on a cluster to run a program concurrently on several nodes. The program in question references a large, ...
- 81
0
votes
0
answers
25
views
Cluster stability measurement for fuzzy clustering
I'm a biologist working in the data science field. I've successfully done clustering for a heterogenic disease with K-means. But I shifted to Fanny to get membership value and to be able to handle the ...
- 221
0
votes
0
answers
28
views
Why is my receive_processed_video function not receiving the full amount of data
I'm trying to make a cluster processing system with a client, broker and nodes. When executing the receive_processed_video function, it stops receiving data after a random time. Is there anything that ...
0
votes
1
answer
207
views
How can I ensure that my Python logic runs exclusively on the Apache Ray Worker Nodes?
I am using Apache Ray to create a customized cluster for running my logic. However, when I submit my tasks with ray.remote, they are executing on the driver node rather than on the worker nodes I ...
- 3,018
1
vote
0
answers
103
views
Prioritize specific nodes in slurm job submission
Is there a way to prioritize certain nodes over others in a job submission without admin privileges?
I know about the --nodelist, --constraint or --exclude directives, but if set, the job runs only if ...
- 1,488
1
vote
1
answer
80
views
Snakemake remote rule stalling before executing script in PBS cluster
I have a snakemake (7.22.0) that's stalling after they start. I have rules that run on a cluster (through pbs) and execute an external Python script. I noticed that now some of the rules stall for ...
2
votes
1
answer
130
views
Spring boot Tomcat session replication with Traefik
I'm trying to setup session replication using Spring boot with Traefik. I've found how it can be achieved with Tomcat and its server.xml file in the following link: Tomcat session replication in ...
1
vote
0
answers
17
views
Why am I getting "TXN_REQUEST_IGNORED ERROR 10906" in GridDB due to an unknown event during cluster operations?
I’m using GridDB for a distributed database setup and recently encountered the following error while performing operations across nodes in the cluster:
from griddb_python import StoreFactory, ...
