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New Head Node

We're embarking on a transition to a new head/login node name cottontail2. This server will be running Rocky 8 operating system. Early design ideas can be found at Cottontail2, all pre-pandemic. We are staying with a 1G ethernet network as we could not find 10G switches. Maybe in the near term we can upgrade.

Two new compute nodes (n100, n101) will be set up in a test queue. They each have four RTX5000 gpus which have the same architecture as our other gpus so all compiled software should work. These gpus have 16G memory foot print (twice as large as other gpus we have).

OpenHPC will be deployed next and I'll make some notes. We will to Slurm scheduler. (Slurm Test Env for users and Slurm Test Env techie page). Any old hardware that can be reimaged with Rocky 8 will be migrated to Slurm using Warewulf. But that all will take some time.

Some pictures below.

Config Recipe

Steps. “Ala n37” … so the RTX nodes are similar to the K20 nodes and we can put the local software in place. See K20 Redo page and exx96 Recipe for CentOS 7

New recipe for n100-n101 sporting Rocky 8.5 on cottontail2
Put node on internet…first though

  • Vanilla Backups using Warewulf and plain rsync (–exclude=[proc/,sys/,run/]
# login as root check some things out...
free -g
nvidia-smi # if gpus
cat /proc/cpuinfo

# check and set local time zone
mv /etc/localtime /etc/localtime.backup
ln -s /usr/share/zoneinfo/America/New_York /etc/localtime

# change passwords for root and vendor account
passwd microway
# set hostname
hostnamectl set-hostname cottontail2

# root: sync cottontail's master and known_hosts (tails+stores)
ssh-keygen -t rsa
scp /root/.ssh/
/etc/ssh/sshd_config (PermitRootLogin)

# Put the warewulf cluster key in authorized_keys
# Put eth0 fingerprints in cottontail/greentail52 known hosts
# add to relevant known_hosts_servername file

# configure private subnets and ping file server
cd /etc/sysconfig/network-scripts/
vi ifcfg-eth0 # 192.168.102.x
vi ifcfg-eth1 # 10.10.102.x
vi ifcfg-eth3 # 129.133.52.x
systemctl restart network
ping -c 3
ping -c 3

# make internet connection for yum

# iptables
dnf install -y iptables-services
vi /etc/sysconfig/iptables
# add 'local allow' ports  --dport 0:65535
systemctl start iptables # and enable
iptables -L
systemctl stop firewalld
systemctl disable firewalld

# eth3 for ctt2 or eth1 for n100-101
dnf install bind-utils
iptables -L # check!

# Rocky8
dnf config-manager --set-enabled powertools
dnf install epel-release
dnf install netcdf netcdf-devel
dnf install yum-utils # yumdownloader
dnf install ddd 
dnf install grace
dnf install gnuplot
dnf install alpine # pico
yum groupinstall "Server" # server for compute nodes "Server with GUI"

# other configs
vi /etc/selinux/config # disabled, do not mistype, kernel will not boot!
mv /home /usr/local/
vi /etc/passwd (exx, dockeruser $HOME)

## edit passwd, shadow, group, hosts files ##
## make -orig backups and stage in /home/tmp/global
## cottontail2 = greentail52 sections

mkdir /sanscratch /home/localscratch
chmod ugo+rwx /sanscratch /home/localscratch
chmod o+t /sanscratch /home/localscratch 
# link localscratch in 1.4T /home to /
mkdir /home 
cd /home # local dir
ln -s /zfshomes/apps
ln -s /zfshomes/tmp
ln -s /zfshomes/csmith06
ln -s /zfshomes /share

# fstab file mounts
# cottontail2 = greentail52
# n100-n101 = n79

# postfix
dnf install postfix
dnf install mailx
systemctl enable postfix
echo "relayhost =" >> /etc/postfix/

# on head node /etc/chronyc.conf
# compute nodes /etc/chronyc.conf
#pool iburst
# check
chronyc sources

# on head node install from epel repo
yum install slurm-openlava
# error on conflicting libs, too bad!

# add packages and update
yum install epel-release -y
yum install flex bison -y 
yum install tcl tcl-devel dmtcp -y
yum install net-snmp net-snmp-libs net-tools net-snmp-utils -y
yum install freeglut-devel libXi-devel libXmu-devel -y
yum install blas blas-devel lapack lapack-devel boost boost-devel -y
yum install lm_sensors lm_sensors-libs -y
yum install zlib-devel bzip2-devel -y
yum install openmpi openmpi-devel perl-ExtUtils-MakeMaker -y
yum install cmake -y
yum install libjpeg libjpeg-devel libjpeg-turbo-devel -y

yum install libibverbs libibverbs-devel

# amber20 cmake readline error fix needs
yum install ncurses-c++-libs-6.1-9.20180224.el8.x86_64.rpm \
            ncurses-devel-6.1-9.20180224.el8.x86_64.rpm \

# amber20
yum -y install tcsh make \
               gcc gcc-gfortran gcc-c++ \
               which flex bison patch bc \
               libXt-devel libXext-devel \
               perl perl-ExtUtils-MakeMaker util-linux wget \
               bzip2 bzip2-devel zlib-devel tar 

# CENTOS7 pick the kernel vendor used for now
grep ^menuentry /etc/grub2.cfg
grub2-set-default 1
ls -d /sys/firmware/efi && echo "EFI" || echo "Legacy"
#grub2-mkconfig -o /boot/grub2/grub.cfg          # legacy
#grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg # efi

# compute nodes old level 3
systemctl set-default

# compute nodes only
# leave old cuda versions behind (9.2 | 10.2)
cd usr/local/
# scp fron n79:/usr/local/
amber16/  amber20/ fsl-5.0.10/ gromacs-2018/ lammps-22Aug18/

# compute nodes only /usr/local/bin/
# copy scripts: gpu-free, gpu-info, gpu-process
# copy /usr/local/bin/
# done

# FINISH native vanilla installs
# R version 4.1.2 (2021-11-01) -- "Bird Hippie"
yum install R R-devel
# openjdk version "1.8.0_322"
rpm -qa | grep ^java  # check
# python v 3.9
yum install python39 python39-devel
ln -s /usr/bin/python3.9 /usr/bin/python
# fftw 3.3.5-11.el8
yum install fftw fftw-devel
#gnu scientific libraries
yum install gsl gsl-devel
# ruby 2.5.9-109.module+el8.5.0
yum install ruby ruby-devel
# obabel chem file formats
yum install openbabel openbabel-devel
# dmtcp
yum install dmtcp dmtcp-devel

yum clean all
# eth3 onboot=no, private networks only
systemctl disable iptables

# now make it an ohpc compute node
  yum repolist
  yum  install ohpc-base-compute
  scp cottontail2:/etc/resolv.conf /etc/resolv.conf
  yum  install ohpc-slurm-client
  systemctl enable munge
  systemctl start munge
  scp cottontail2:/etc/munge/munge.key /etc/munge/munge.key
  echo SLURMD_OPTIONS="--conf-server" > /etc/sysconfig/slurmd
  yum  install --allowerasing lmod-ohpc
  grep '/var' /etc/slurm/slurm.conf
  mkdir /var/log/slurm 
  chown slurm:munge /var/log/slurm 
  mkdir /var/spool/slurm 
  chown slurm:munge /var/spool/slurm 
  scp cottontail2:/etc/slurm/slurm.conf /etc/slurm/slurm.conf
  scp cottontail2:/etc/slurm/gres.conf /etc/slurm/gres.conf
  /usr/sbin/slurmd -D 
# start via rc.local
chmod +x /etc/rc.d/rc.local
#timing issue with munge
sleep 15
# slurmd ??? => /opt/ohpc/pub/libs/hwloc/lib/ (0x00007fd6e5684000)

# add to zenoss edit /etc/snmp/snmpd.conf, enable and start
rocommunity public
dontLogTCPWrappersConnects yes


My data center robot thingie and node n100's gpus



 988  tar xvfj ../AmberTools21.tar.bz2 
  989  tar xvfj ../Amber20.tar.bz2 
  993  cd amber20_src/
  994  cd build/
  996  vi run_cmake

#  Assume this is Linux:

# serial, do on heasd node, pull down miniconda, compile, install
  cmake $AMBER_PREFIX/amber20_src \
    -DCMAKE_INSTALL_PREFIX=/share/apps/CENTOS8/ohpc/software/amber/20 \
    2>&1 | tee  cmake.log

# Env

[hmeij@n100 ~]$ module load cuda/11.6

[hmeij@n100 ~]$ echo $CUDA_HOME

[hmeij@n100 ~]$ which nvcc mpicc gcc

# [FIXED} cmake error on conda install, set to FALSE
# OS native python, install on n[100-101]
-- Python version 3.9 -- OK
-- Found PythonLibs: /usr/lib64/ (found version "3.9.6") 
-- Checking for Python package numpy -- not found
-- Checking for Python package scipy -- not found
-- Checking for Python package matplotlib -- not found
-- Checking for Python package setuptools -- found

# mpi & cuda FALSE builds serial
make install
# lots and lots of warnings

# then
source /share/apps/CENTOS8/ohpc/software/amber/20/

# on n100 now, parallel, set miniconda flags to FALSE
make install

# on n100 just change cuda flag
make install

make test.serial
export DO_PARALLEL="mpirun -np 6"
make test.parallel
make test.cuda.serial
make test.cuda.parallel


cluster/213.1652205800.txt.gz · Last modified: 2022/05/10 14:03 by hmeij07