Zeus System Configuration

Theoretical peak speed: (64 cores) * (2.7 Gcycles/s/core) * (16 DP flop/cycle) = 5.5 Tflop/s, double precision

Assumes two AVX-512 FMA (fused multiply-add with 8 DP additions and 8 DP multiplications) every cycle

Does not account for memory bandwidth limitations, or dynamic frequency scaling due to AVX-512 instructions

Timeline

Apr. 2025:	Purchased from Red Barn HPC with Ubuntu 24.04 LTS and some tools preinstalled
Apr.-Jul. 2025:	Initial software installations were performed on Zeus
Aug. 2025:	User and data migrations from Hermes were completed

Hardware Configuration

System/Motherboard and BIOS:	Giga Computing MS73-HB2, serial no. OG1N8500059, GIGABYTE R12 BIOS
	(Custom build - ASUS motherboards were unavailable - order no. S02610)

Processors:	64 cores, 2x 32-Core Intel Xeon Gold "Emerald Rapids" Processors*, 6530, 160MB L3 Cache, 2.10GHz
	*2.7 GHz all-core turbo; sockets for this processor are LGA 4677 or "Socket E"
Memory:	512GB, 16x 32GB ECC Registered DDR5 SDRAM DIMMs, 4800 MT/s*
	*Highest speed possible
Bootable Disk Drive:	3.84TB Micron 7450 PRO NVMe SSD (MTFDKBG3T8TFR), PCIe4 x4, M.2 form factor
Additional Disk Drives:	60TB RAID-5, Broadcom/LSI MegaRAID 9560-8i 12GBps Tri-mode RAID Controller + CVPM05 CacheVault,
	with 4x Seagate Exos X24 20TB HDD (ST20000NM007H), 7200RPM SAS-3 12.0Gbps, 3.5"
Chipset:	Intel C741 ("Emmitsburg"), 20 SATA3 ports (but only 8 drive bays are supported by the case)
Network Interface Controllers:	Dual Broadcom BCM57416B 10G RDMA Ethernet Controllers + Dual Intel I210 Gigabit Ethernet Controllers
Case:	InWin IW-PLG GPU Workstation Pedestal Case

Graphics Accelerator:	NVIDIA RTX A2000 12GB, 12GB GDDR6, 3328 CUDA cores, 1200 MHz boost clock
	Interfaces: 4x mini DisplayPort 1.4, PCIe 4.0 x16

The root partition, which includes /home, is formatted with ext4; the RAID partition, /data, is formatted with xfs.
User storage locations are in (1) $HOME for each OS, as well as (2) /data/$USER directories on the RAID array.

Hardware Interrogation Commands

Processors:	`lscpu; more /proc/cpuinfo`
Memory:	`lsmem; more /proc/meminfo; top; sudo dmidecode --type memory #grep for Size or Speed`
Bootable Disk Drives:	`sudo fdisk -l \| grep dev #bootable drives have an EFI System partition`
Additional Disk Drives:	`lsblk; sudo blkid; gnome-disks (GParted is not installed on Zeus)`
MegaRAID Disk Drives:	`sudo /opt/MegaRAID/storcli/storcli64 /c0 show all #can leave out /c0 for general info`
Other RAID Disk Drives (N/A):	`lspci \| grep -i raid; dmraid -r; cat /proc/mdstat #the last one detects software RAID`
I/O Controller Hub (N/A):	`lspci \| grep SATA; sudo dmidecode --type 8 \| grep SATA`
Network Interface Controller:	`lspci \| grep -i ether`
Motherboard and BIOS:	`sudo dmidecode --type baseboard; sudo dmidecode --type bios`
Graphics Accelerator:	`lspci \| grep VGA; nvidia-smi`
Disk Drives and Controllers:	`sudo lshw -class disk; sudo lshw -class storage; dmesg \| grep SATA`

The links below lead to separate pages that give precise, step-by-step descriptions of what was done in each year.

Multi-Boot Instructions

From GRUB Menu:	After the setup phase, when the GRUB menu appears, use the up/down arrows to select the desired OS, then hit <CR>.
	This selection is not remembered on the next boot. To make the change permanent, you have to alter the grub.cfg file.
From Boot Menu:	Scroll past the end of the page and select the option "Hard Drive BBS Priorities" that appears. (Scrolling up works too.)
	The pop-up will show all available "legacy" drives, not just one. Scroll to the desired drive and move it to the top with "+".
	(This is NOT documented in the manual, pp. 4-31 to 4-32!!) Use Esc and arrows to reach Save Configuration and Exit.

Last updated on 9/6/25 by Steve Lantz (steve.lantz ~at~ cornell.edu)