Archive:

Month: November 2019


Installing Lapack in CentOS 7-8

By: | Post date: November 14, 2019 | Comments: No Comments

Posted in categories: Computer Tips, Work related

For CentOS7, ccmake -DCMAKE_INSTALL_PREFIX=/usr/local/lapack -DCMAKE_BUILD_TYPE=RELEASE -DBUILD_SHARED_LIBS=ON -DLAPACKE=ON .. Then make, make install will get you a working version of liblapacke.so The current version 3.8.0 source has bugs that prevent the .so to work properly. Version 3.7.1 is the best to do. For CentOS8, the Fedora 29 version of Lapack works by dnf install.

Ganglia cannot display cluster view with certain version of php

By: | Post date: November 5, 2019 | Comments: No Comments

Posted in categories: Computer Tips, Work related

This is related with a version compatibility issue. nano +26 /usr/share/ganglia/cluster_view.php change $context_metrics = “”; to $context_metrics = array(); will do the job.

kill zombies

By: | Post date: November 5, 2019 | Comments: No Comments

Posted in categories: Computer Tips, Work related

A zombie is already dead, so you cannot kill it. To clean up a zombie, it must be waited on by its parent, so killing the parent should work to eliminate the zombie. An example of how you might send a signal to every process that is the parent of a zombie (note that this […]