Category Archives: linux

CONFIG_RETPOLINE=y error on CentOS 7

We need to update our systems. We don’t do it regularly, but when requested by the authority, and this time they requested it due to Specter & Meltdown. So there I am trying to get my rpm for the newest … Continue reading

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A MATLAB Runtime module

First we download the chosen package from the MATLAB site. Then we unzip it on a test folder and run the provided install script. The procedure is quite easy, no programming knowledge is needed. We choose the path to our … Continue reading

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Sharemouse, a Keyboard Video Mouse sharing solution for Windows and macOS

I have now 3 computers, real ones. And 4 monitors. But OK, let’s say I need them. What I don’t need is to have 3 keyboards and 3 mice. So I looked for a KVM (Keyboard-Video-Mouse) to make my life … Continue reading

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Speed test with iperf on CentOS 7

We’re now having more than one GPFS client hooked up to a 10 GB line. The fact we have a 10 GB network available is not, unfortunately, meaning that we can have that speed, so we need some tool to … Continue reading

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Dell T3600 boots but no video

I have a few of this Dell T3600 towers (circa 2012) that are fantastic workstations. But as time goes on, they started to fail and I don’t have Dell support anymore. So I’m on my own. We have that machine … Continue reading

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/usr/lib64/ version `GLIBCXX_3.4.20′ not found CentOS 7

The GLIBCXX error is a recurrent one. It happens usually when I try to use new code┬ájust compiled on an old system. The old system is my CentOS 7. I got it prevously, for example installing relion 2.1. But I … Continue reading

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Add a CentOS 7 node to a GPFS cluster

We want to have all the clients of our storage added as native GPFS clients. I showed before some problems that I experienced with an already joined GPFS client. Everybody’s lazy, so I will suppose you already compiled the GPFS … Continue reading

Posted in bash, bits, centos, filesystems, GPFS, linux, slurm, software | Leave a comment