NEC SX-Aurora TSUBASA B401-8

B401-8 Rackserver

NEC SX-Aurora TSUBASA A401-8

The NEC SX-Aurora TSUBASA B401-8 is a flexible solution with eight tightly integrated Vector Engines from the second generation for mid to large datacenters. This model provides a tightly integrated MPI optimized solution.


NEC SX-Aurora TSUBASA B401-8 
# of Vector Hosts (VHs) 1
Formfactor 2U Rackmount
# of Vector Engines 8
Vector Engine (VE) 
Vector Engine Type 20A/20B
Max. VE Performance (TeraFLOPS) 24.56
Max. VE Memory bandwidth (TB/s) 12.24
Vector Host (VH) 
# AMD EPYC Processor 1
Max. Memory configuration 8 x 2666 MHz DDR4 DIMMs
Max. Memory capacity (GB) 512
Max. Disk capacity (TB) SATA SSD 1.92 
Operating System Red Hat Enterprise Linux 8.1 or higher/CentOS 8.1 or higher
InfiniBand HDR
Max. InfiniBand EDR HCAs 2
Bidirectional bandwidth (GB/s) 200
Power and Cooling 
Power consumption (HPL) 3.0 kW (VE2: 8 cores), 3.3 kW (VE2: 10 cores)
Cooling Water + Air
Bundled software VE controlling software, VE driver
Software development kit Software Development Kit for Vector Engine, NEC MPI, NEC MPI/Sclar-Vector Hybrid