RHEL7 Core (Minimal Install) vs. Base (Infrastructure Server) Packages

Below is a list of packages installed on RHEL7 using the minimal install (@ Core option in Kickstart).

The additional packages installed by @ Base option in Kickstart are added into the list in bold with the package summary appended. Read more... about RHEL7 Core (Minimal Install) vs. Base (Infrastructure Server) Packages

Topic: 

Installing Jenkins stable on RHEL7 minimal

Install prerequisites:

yum install java-1.8.0-openjdk-headless dejavu-sans-fonts fontconfig

Install Jenkins stable repo:

cd /etc/yum.repos.d/
curl -O http://pkg.jenkins-ci.org/redhat-stable/jenkins.repo
rpm --import https://jenkins-ci.org/redhat/jenkins-ci.org.key

Install Jenkins:

yum install jenkins

Set Jenkins service to start at startup:

systemctl enable jenkins.service

Start Jenkins service:

systemctl start jenkins.service Read more... about Installing Jenkins stable on RHEL7 minimal

Topic: 

/usr/bin/ld: cannot find -lz

Problem:

/usr/bin/ld: cannot find -lz

Solution:

yum install zlib-static

Problem:

/usr/bin/ld: cannot find -lpthread

Solution:

yum install glibc-static

Problem:

/usr/bin/ld: cannot find -lstdc++

Solution:

yum install libstdc++-static

If you are using RHEL7, these are in the rhel-x86_64-server-optional-7 channel. Read more... about /usr/bin/ld: cannot find -lz

Topic: 

How Does Hyperthreading Affect an ALLPATHS-LG Run?

In running ALLPATHS-LG, a short read genome assembler, on a Dell PowerEdge R920 with four Xeon E7-4860v2 processors running at 2.60GHz, I did one run with hyperthreading on and one with hyperthreading off. This was mainly to see if the increased cache size on the physical CPU core with hyperthreading off had a positive effect on performance.

I'll take all the anticipation away: Nope. Hyperthreading wins. Read more... about How Does Hyperthreading Affect an ALLPATHS-LG Run?

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