HOLK - this is the system name - consists of 128 modules, with 2 Itanium II 1.3 processors (with 3 MB L3 cache), 2 GB RAM, 36 GB SCSI drive, and 2 Gigabit Ethernet ports. This gives 256 GB of total operation memory, and 4 TB disk space.
All modules are controlled by Debian GNU/Linux 3.0 woody, MPICH and LAM libraries are used for communication. Modules are interconnected using Gigabit Ethernet technology. Theoretical computational power is about 1332 Gflop/s.
Holk is classified on 231st place on TOP500 list and on 9th place on clusters@TOP500 list. Holk is used by research community in Trojmiasto, Poland.