slurm

SLURM: see how many cores per node, and how many cores per job

由 人走茶凉 提交于 2020-11-25 08:23:18
问题 I have searched google and read the documentation. My local cluster is using SLURM. I want to check the following things: How many cores does each node have? How many cores has each job in the queue reserved? Any advice would be much appreciated! 回答1: in order to see the details of all the nodes you can use: scontrol show node For an specific node: scontrol show node "nodename" And for the cores of job you can use the format mark %C , for instance: squeue -o"%.7i %.9P %.8j %.8u %.2t %.10M %

Find CPU and Memory Time Series of Slurm Job?

由 梦想与她 提交于 2020-08-26 09:55:26
问题 There's a nice question (Find out the CPU time and memory usage of a slurm job) about how to retrieve the CPU time and memory usage of a slurm job and spinup has a nice answer (https://stackoverflow.com/a/56555505/4570472). However, if I understand correctly, seff <job id> returns Memory Efficiency which corresponds to MAXRSS over the entire life of the job. How do I retrieve the time series of memory (and perhaps CPU) usage? I'd like this to understand why my slurm jobs are running out of

Find CPU and Memory Time Series of Slurm Job?

由 让人想犯罪 __ 提交于 2020-08-26 09:55:07
问题 There's a nice question (Find out the CPU time and memory usage of a slurm job) about how to retrieve the CPU time and memory usage of a slurm job and spinup has a nice answer (https://stackoverflow.com/a/56555505/4570472). However, if I understand correctly, seff <job id> returns Memory Efficiency which corresponds to MAXRSS over the entire life of the job. How do I retrieve the time series of memory (and perhaps CPU) usage? I'd like this to understand why my slurm jobs are running out of

Sparrow:分布式低延迟调度

由 大城市里の小女人 提交于 2020-08-15 05:04:41
1.摘要 大型数据分析框架正在朝着缩短任务执行时间和提高并行度的方向发展来提供低延迟，任务调度器面临的主要挑战是在几百毫秒内完成高度并行的作业调度，这需要在合适的机器上每秒调度数百万个任务，同时提供毫秒级的延迟和高可用性。本文证明了去中心化、随机抽样方法可提供最佳性能，同时避免了中心化设计存在吞吐量和高可用的问题。本文在110台计算机集群上部署Sparrow，并证明Sparrow的性能与理想的调度程序的误差在12%以内。 2.介绍 当今的数据分析集群运行的时间越来越短，作业的任务越来越多。在对低延迟交互式数据处理的需求的刺激下，研究机构和同行业共同努力产生了一些框架（例如Dremel，Spark，Impala）可以在数千台机器上工作，或将数据存储在内存以秒级分析大量数据，如图1所示。预计这种趋势会继续推动开发针对次秒级响应时间的新一代框架响应时间进入100ms左右，这让新的强大的应用程序成为可能；例如，面向用户的服务在每个查询的基础上将能够运行复杂的并行计算，比如语言翻译和高度个性化的搜索。 图1：数据分析框架分析大量数据的延迟非常低 调度由简短的次秒级任务组成的作业极具挑战，这些作业不仅是因为低延迟框架出现的，也有将长时间运行的批处理作业分解为大量短时间任务的原因。当任务以几百毫秒的速度运行时，调度决策必须有很高的吞吐量：一个由10000个16核机器组成的集群并运行100毫秒任务

SLURM sbatch job array for the same script but with different input string arguments run in parallel

由 和自甴很熟 提交于 2020-07-05 12:34:51
问题 My question is similar with this one, and the difference is that my different arguments are not numbers but strings. If I have a script (myscript.R) that takes two strings as arguments: "text-a", "text-A". My shell script for sbatch would be: #!/bin/bash #SBATCH -n 1 #SBATCH -c 12 #SBATCH -t 120:00:00 #SBATCH --partition=main #SBATCH --export=ALL srun ./myscript.R "text-a" "text-A" Now I have a few different input strings that I'd like to run with: first <- c("text-a","text-b","text-c","text

SLURM sbatch job array for the same script but with different input string arguments run in parallel

由 假如想象 提交于 2020-07-05 12:33:32
问题 My question is similar with this one, and the difference is that my different arguments are not numbers but strings. If I have a script (myscript.R) that takes two strings as arguments: "text-a", "text-A". My shell script for sbatch would be: #!/bin/bash #SBATCH -n 1 #SBATCH -c 12 #SBATCH -t 120:00:00 #SBATCH --partition=main #SBATCH --export=ALL srun ./myscript.R "text-a" "text-A" Now I have a few different input strings that I'd like to run with: first <- c("text-a","text-b","text-c","text

Get Job id and put them into a bash command

由 橙三吉。 提交于 2020-06-29 06:42:25
问题 Hello for a projet I need to execute a bash file only when all previous run have been finished so I use : sbatch -d afterok:$JobID1:$JobID2:$JobIDN final.sh in Order to run the JobIDN I do for job in Job*.sh ; do sbatch $job; done Then it prints all the jobIDs I just wondered if someone haave a command in order to grab these IDs and put them directly to the command : sbatch -d afterok:$JobID1:$JobID2:$JobIDN final.sh exemple for job in Job*.sh ; do sbatch $job; done 1 2 3 sbatch -d afterok:$1

Dereference error when accessing Slurm job resources using C API

由 ╄→гoц情女王★ 提交于 2020-06-01 07:37:17
问题 I am trying to get memory usage information for each job in the Slurm cluster using C API: #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include "slurm/slurm.h" #include "slurm/slurm_errno.h" int main(int argc, char** argv) { int c, i, slurm_err; job_info_msg_t *jobs; /* Load job info from Slurm */ slurm_err = slurm_load_jobs((time_t) NULL, &jobs, SHOW_DETAIL); printf("job_id,cluster,partition,user_id,name,job_state,mem_allocated,mem_used\n"); /* Print jobs info to the file in

How do the terms “job”, “task”, and “step” relate to each other?

由 落花浮王杯 提交于 2020-04-27 17:32:19
问题 How do the terms "job", "task", and "step" as used in the SLURM docs relate to each other? AFAICT, a job may consist of multiple tasks, and also it make consist of multiple steps, but, assuming this is true, it's still not clear to me how tasks and steps relate. It would be helpful to see an example showing the full complexity of jobs/tasks/steps. 回答1: A job consists in one or more steps , each consisting in one or more tasks each using one or more CPU . Jobs are typically created with the

How do the terms “job”, “task”, and “step” relate to each other?

由 放肆的年华 提交于 2020-04-27 17:31:54
问题 How do the terms "job", "task", and "step" as used in the SLURM docs relate to each other? AFAICT, a job may consist of multiple tasks, and also it make consist of multiple steps, but, assuming this is true, it's still not clear to me how tasks and steps relate. It would be helpful to see an example showing the full complexity of jobs/tasks/steps. 回答1: A job consists in one or more steps , each consisting in one or more tasks each using one or more CPU . Jobs are typically created with the
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