Madmax is a small cluster with eight microblade nodes for IO-heavy data-parallel workloads, such as LiberTEM processing. Each node is equipped with two Samsung 970 EVO 2 TB NVMe SSDs in a RAID configuration, 32 GB RAM, 10 GbE network connectivity, and an Intel Xeon D-1541 CPU.

Main contact persons for this system are Alexander Clausen and Dieter Weber. Please contact them before running jobs on these systems!

The cluster is currently being commissioned. That means even if you could log in with ifflogin, it could be stopped at any time and any data may be deleted without notice.

The current plan is that the system boots via network from Small Storage and can be accessed from Möllenstedt. This can change without notice until the cluster is fully commissioned.

DHCP config

The {DHCP,PXE,NFS} server is running on the Small Storage/IFF1020. To install new software, you can run the install command directly on iff1020: yum --installroot=/export/madmax/root/ install nvme-cli.

#
# DHCP Server Configuration file.
#   see /usr/share/doc/dhcp*/dhcpd.conf.example
#   see dhcpd.conf(5) man page
#
not authoritative;
option domain-name "iff.kfa-juelich.de";
option domain-name-servers 134.94.105.203, 134.94.105.204;
subnet 192.168.5.0 netmask 255.255.255.0 {
        filename "grubx64.efi";
        next-server 192.168.5.254;
        option routers 192.168.5.254;
        host madmax-1 { hardware ethernet ac:1f:6b:8b:9f:3d; fixed-address madmax-1; }
        host madmax-2 { hardware ethernet ac:1f:6b:8b:9e:62; fixed-address madmax-2; }
        host madmax-3 { hardware ethernet ac:1f:6b:8b:16:8b; fixed-address madmax-3; }
        host madmax-4 { hardware ethernet ac:1f:6b:8b:9e:6f; fixed-address madmax-4; }
        host madmax-5 { hardware ethernet ac:1f:6b:8b:44:42; fixed-address madmax-5; }
        host madmax-6 { hardware ethernet ac:1f:6b:8b:43:85; fixed-address madmax-6; }
        host madmax-7 { hardware ethernet ac:1f:6b:8b:16:27; fixed-address madmax-7; }
        host madmax-8 { hardware ethernet ac:1f:6b:8b:9e:ff; fixed-address madmax-8; }
        host madmax-ipmi-1 { hardware ethernet ac:1f:6b:62:ef:59; fixed-address madmax-ipmi-1; }
        host madmax-ipmi-2 { hardware ethernet ac:1f:6b:75:53:f5; fixed-address madmax-ipmi-2; }
        host madmax-ipmi-3 { hardware ethernet ac:1f:6b:75:53:e4; fixed-address madmax-ipmi-3; }
        host madmax-ipmi-4 { hardware ethernet ac:1f:6b:75:53:ff; fixed-address madmax-ipmi-4; }
        host madmax-ipmi-5 { hardware ethernet ac:1f:6b:75:53:f8; fixed-address madmax-ipmi-5; }
        host madmax-ipmi-6 { hardware ethernet ac:1f:6b:75:53:fa; fixed-address madmax-ipmi-6; }
        host madmax-ipmi-7 { hardware ethernet ac:1f:6b:75:54:01; fixed-address madmax-ipmi-7; }
        host madmax-ipmi-8 { hardware ethernet ac:1f:6b:75:53:d9; fixed-address madmax-ipmi-8; }
}

Hosts

The IP addresses are managed in /etc/hosts on Small Storage/IFF1020.

192.168.5.1     madmax-1 madmax-1.iff.kfa-juelich.de
192.168.5.2     madmax-2 madmax-2.iff.kfa-juelich.de
192.168.5.3     madmax-3 madmax-3.iff.kfa-juelich.de
192.168.5.4     madmax-4 madmax-4.iff.kfa-juelich.de
192.168.5.5     madmax-5 madmax-5.iff.kfa-juelich.de
192.168.5.6     madmax-6 madmax-6.iff.kfa-juelich.de
192.168.5.7     madmax-7 madmax-7.iff.kfa-juelich.de
192.168.5.8     madmax-8 madmax-8.iff.kfa-juelich.de
192.168.5.129     madmax-ipmi-1 madmax-ipmi-1.iff.kfa-juelich.de
192.168.5.130     madmax-ipmi-2 madmax-ipmi-2.iff.kfa-juelich.de
192.168.5.131     madmax-ipmi-3 madmax-ipmi-3.iff.kfa-juelich.de
192.168.5.132     madmax-ipmi-4 madmax-ipmi-4.iff.kfa-juelich.de
192.168.5.133     madmax-ipmi-5 madmax-ipmi-5.iff.kfa-juelich.de
192.168.5.134     madmax-ipmi-6 madmax-ipmi-6.iff.kfa-juelich.de
192.168.5.135     madmax-ipmi-7 madmax-ipmi-7.iff.kfa-juelich.de
192.168.5.136     madmax-ipmi-8 madmax-ipmi-8.iff.kfa-juelich.de

Administration

The system is administrated by Alexander Clausen and Dieter Weber

Resources

File:MNL-1887.pdf