NEC SX
NEC SX describes a series of
History
The first models, the SX-1 and SX-2, were announced in April 1983, and released in 1985. The SX-1 and SX-1E were less powerful models offered by NEC.
The SX-3 was announced in 1989,[7][8] and shipped in 1990.[6] The SX-3 allows parallel computing using both SIMD and MIMD.[9] It also switched from the ACOS-4 based SX-OS, to the AT&T System V UNIX-based SUPER-UX operating system.[6] In 1992 an improved variant, the SX-3R, was announced.[6] A SX-3/44 variant was the fastest computer in the world between 1992-1993 on the TOP500 list. It had LSI integrated circuits with 20,000 gates per IC with a per-gate delay time of 70 picoseconds, could house 4 arithmetic processors with up to 4 sharing the same main memory, and up to several processors to achieve up to 22 GFLOPS of performance, with 1.37 GFLOPS of performance with a single processor. 100 LSI ICs were housed in a single multi chip module to achieve 2 million gates per module. The modules were watercooled.[10]
The SX-4 series was announced in 1994, and first shipped in 1995.[6] Since the SX-4, SX series supercomputers are constructed in a doubly parallel manner.[citation needed] A number of central processing units (CPUs) are arranged into a parallel vector processing node.[citation needed] These nodes are then installed in a regular SMP arrangement.[citation needed]
The SX-5 was announced and shipped in 1998,[6] with the SX-6 following in 2001, and the SX-7 in 2002.[11] Starting in 2001, Cray marketed the SX-5 and SX-6 exclusively in the US, and non-exclusively elsewhere for a short time.[citation needed]
The
Tadashi Watanabe has been NEC's lead designer for the majority of SX supercomputer systems.[16] For this work he received the Eckert–Mauchly Award in 1998 and the Seymour Cray Computer Engineering Award in 2006.[citation needed]
Hardware
Each system has multiple models, and the following table lists the most powerful variant of each system. Further certain systems have revisions, identified by a letter suffix.
| System | Introduction | Max. CPUs | Peak CPU double precision GFLOPS |
Peak system GFLOPS | Max. main memory | System memory B/W (GB/s) | Memory B/W per CPU (GB/s) |
|---|---|---|---|---|---|---|---|
| SX-1E[5][6][11] | 1983 | 1 | 0.325[17] | 128 MB | |||
| SX-1[5][11] | 1983[6][11] | 1 | 0.570[6] / 0.650[17] | 256 MB | |||
| SX-2[5][11] | 1983[6][11] | 1 | 1.3[6] | 1.3[11] | 256 MB[6] | 11 | 11 |
| SX-3[7][8] | 1990[11] | 4[7][6] | 5.5[8][11] | 22[7][11] | 2 GB[7] | 44 | 22 |
| SX-3R[citation needed] | 1992 | ||||||
| SX-4[11] | 1994[18][11] | 32 | 2 | 64 | 16 GB | 512 | 16 |
| SX-5[11] | 1998[11] | 16 | 8[11] | 128 | 128 GB | 1024 | 64 |
| SX-6[11] | 2001[11] | 8 | 8[11] | 64 | 64 GB | 256 | 32 |
| SX-6i[citation needed] | 2001[11] | 1 | 8 GB | ||||
| SX-7[11] | 2002[11] | 32 | 8.83 | 282 | 256 GB | 1129 | 35.3 |
| SX-8[16][11] | 2004[16][11] | 8 | 16[11] | 128 | 128 GB | 512 | 64 |
| SX-8i[citation needed] | 2005 | 32 GB | |||||
| SX-8R[citation needed] | 2006 | 8 | 35.2 | 281.6 | 256 GB | 563.2 | 70.4 |
| SX-9[11] | 2007 | 16 | 102.4[11] | 1638 | 1 TB | 4096 | 256 |
| SX-ACE[citation needed] | 2013 | 1 | 256 | 256 | 1 TB | 256 | 256 |
| SX-Aurora TSUBASA[citation needed] | 2017 | 8 | 2450 | 19600 | 8×48GB | 8×1200 | 1200 |
| SX-Aurora TSUBASA Type 20[citation needed] | 2021 | 8 | 3070 | 24560 | 8×48GB | 8×1530 | 1530 |
| SX-4 | SX-4A | SX-5 | SX-6 | SX-8 |
SX-8R | SX-9 |
SX-ACE | |
|---|---|---|---|---|---|---|---|---|
| Max. nodes | 16 | 16 | 32 | 128 | 512 | 512 | 512 | 512 |
| Max. CPUs | 512 | 256 | 512 | 1,024 | 4,096 | 4,096 | 8,192 | 512 |
| Peak TFLOPS | 1 | 0.5 | 4 | 8 | 65 | 140.8 | 839 | 131 |
| Max. main memory | 256 GB | 512 GB | 4 TB | 8 TB | 64 TB | 128 TB | 512 TB | 32 TB |
| Total memory B/W (TB/s) | 8 | 4 | 32 | 32 | 131 | 281.6 | 2,048 | 131 |
Software environment
 | This section needs additional citations for verification. (April 2023) |
Operating system
The SX-1 and SX-2 ran the ACOS-4 based SX-OS. The SX-3 onwards run the SUPER-UX operating system (OS); the Earth Simulator runs a custom version of this OS.
Compilers
SUPER-UX comes with Fortran and C++ compilers. Cray has also developed an Ada compiler which is available as an option.
Software
Some
SX-Aurora TSUBASA
The SX-Aurora TSUBASA PCIe card is running in a Linux machine, the Vector Host (VH), which provides operating system services to the Vector Engine (VE).[19] The VE operating system VEOS runs in user space on the VH. Applications compiled for the VE can use almost all Linux system calls, they are transparently forwarded and executed on the VH. The components of VEOS are licensed under the GNU General Public License.
References
- ^ ISBN 978-3-642-75773-0.
- ^ a b c "NEC SX-1, SX-2". IPSJ Computer Museum. Information Processing Society of Japan. Retrieved 24 August 2018.
- ^ a b "The Earth Simulator: Earth Simulator Center | TOP500 Supercomputer Sites". www.top500.org. Retrieved 25 August 2018.
- .
- ^ .
- ^ .
- ^ ISBN 978-3-528-07637-5.
- ^ doi:10.1145/76263.1379809 (inactive 31 January 2024).)
{{cite book}}: CS1 maint: DOI inactive as of January 2024 (link - .
- ^ "SX-3 Series-Computer Museum".
- ^ a b c d e f g h i j k l m n o p q r s t u v w x y z NISHIKAWA, Takeshi (2008). "Supercomputer SX-9 Development Concept" (PDF). NEC Technical Journal. 3 (4). Retrieved 25 August 2018.
- ^ "Earth-Simulator - TOP500 Supercomputer Sites". www.top500.org. Retrieved 25 August 2018.
- ^ Habata, S; Yokokawa, M; Kitawaki, S (2003). "The earth simulator system" (PDF). NEC Research and Development. 44 (1): 21–26. Retrieved 25 August 2018.
- .
- ^ "Sx-9: Hpcソリューション | Nec".
- ^ ISBN 978-3-540-29124-4.
- ^ ISBN 978-3-540-18991-6.
- . Retrieved 25 August 2018.
- ^ "NEC SX-Aurora TSUBASA - Vector Engine". www.nec.com. Retrieved 2018-03-14.
