Category Archives: linux

GPFS mmbuildgpl on CentOS 7.6

I know I get boring by minutes. But that’s life, my friends. Today’s problem is a GPFS CentOS client gpfsnode that joined our system later in time. I did what I did with my previous machines (I have a script … Continue reading

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Slurm 18.08 database usage

Previously I told you about the problems you may have configuring the mariadb for the slurm daemon. Now I’m going to close this chapter by a little cheatsheet on accounting based on the sreport documentation and  the sacctmgr documentation. I … Continue reading

Posted in bash, batch, centos, errors, GPU, hardware, linux, nvidia, slurm, software, Uncategorized | Leave a comment

Slurm 18.08 with QOS mariadb problems on CentOS 7

I already told you how to install Slurm on CentOS 7 so I’m not going to repeat it for a  modern slurm package. I’m going to comment on the new issues I had using the procedure. Problem one: making rpms. … Continue reading

Posted in bash, batch, centos, errors, GPU, hardware, linux, mac, mysql, osx, slurm, software | 3 Comments

GPFS error [E] Pagepool has size … instead of the requested … on CentOS 7

We just updated our GPFS systems for the new kernel. The installation was smooth once we get the rpm packages. Basically: rpm -Uvh gpfs.base-4.2.3-13.x86_64.rpm \ gpfs.docs-4.2.3-13.noarch.rpm gpfs.ext-4.2.3-13.x86_64.rpm \ gpfs.gpl-4.2.3-13.noarch.rpm gpfs.gskit-8.0.50-86.x86_64.rpm \ gpfs.license.std-4.2.3-13.x86_64.rpm \ gpfs.msg.en_US-4.2.3-13.noarch.rpm And after that the compiled binary … Continue reading

Posted in big data, bits, centos, GPFS, linux, software | Leave a comment

Giving root power to a CentOS 7 user

This is an old one. I was explicitly avoiding to pass through this hole, but the time has come. There is the need to run a script that will copy data owned by ROOT from storage A to storage B.  … Continue reading

Posted in bash, batch, big data, bits, EM, errors, linux, mac, osx, rsync | Leave a comment

OSX ipython UnknownBackend %matplotlib unable to use

I’m continuing with my data science experiments. If you are also following some text instead of learning it by use, you may have encountered that you are unable to use matplotlib as suggested on the text.  The line %matplotlib inline … Continue reading

Posted in bash, big data, brew, hardware, ipython, linux, mac, osx, python | Leave a comment

A ddrescue on CentOS 7

Sorry no literature yet. I do not find time to write down my dreams, but they are there. I’ve been having headaches trying to recover a dying Windows 7 system with vital hardware running on it. Since I am a … Continue reading

Posted in bash, centos, ddrescue, errors, fragments, linux, windows, XP | Leave a comment