์–ด์ œ๋ฐค, Forbes์ง€์— ๊ตฌ๊ธ€(Google)์ด POWER9 ํ”„๋กœ์„ธ์„œ๋ฅผ ์ž์‚ฌ ๋ฐ์ดํ„ฐ์„ผํ„ฐ์— ํ™œ์šฉํ•˜๊ณ  ์žˆ์Œ์„ ๊ณต์‹์ ์œผ๋กœ ๋ฐœํ‘œํ–ˆ๋‹ค๋Š” ๊ธฐ์‚ฌ๊ฐ€ ์‹ค๋ ธ์Šต๋‹ˆ๋‹ค.

์›๋ž˜ ์ž์‚ฌ ๋ฐ์ดํ„ฐ์„ผํ„ฐ์— ๋Œ€ํ•ด์„œ๋Š” ๊ฑฐ์˜ ๋ชจ๋“  ๊ฒƒ์„ ๋น„๋ฐ€์— ๋ถ€์น˜๋Š” ๊ตฌ๊ธ€์ด ๋’ค๋Šฆ๊ฒŒ๋‚˜๋งˆ ํŠน์ • ํ”„๋กœ์„ธ์„œ๋ฅผ ์‚ฌ์šฉ ์ค‘์ž„์„ ๋ฐํžŒ ๊ฒƒ์€ ์ด๋ก€์ ์ธ ์ผ์ž…๋‹ˆ๋‹ค. ๋ผ์Šค๋ฒ ๊ฐ€์Šค์—์„œ ์—ด๋ฆฐ OpenPOWER Summit 2018 ํ–‰์‚ฌ์—์„œ ๋‚˜์˜จ ์ด ๋ฐœํ‘œ๋Š” ๊ต‰์žฅํžˆ ๋†€๋ผ์šด ์†Œ์‹์€ ์•„๋‹ˆ๊ณ , ์ด๋ฏธ ์ž‘๋…„๋ถ€ํ„ฐ ์˜ˆ๊ณ ๋˜์–ด ์žˆ์—ˆ๋˜ ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์ด๋ฏธ ์ž‘๋…„์— ๊ตฌ๊ธ€์€ ํด๋ผ์šฐ๋“œ ์—…์ฒด์ธ Rackspace์™€ ํ•จ๊ป˜ POWER9 ํ”„๋กœ์„ธ์„œ๋ฅผ ์žฅ์ฐฉํ•œ ์ž์ฒด ์„œ๋ฒ„ ์•„ํ‚คํ…์ฒ˜๋ฅผ OCP(Open Compute Project) ๊ธฐ๋ฐ˜์œผ๋กœ ์„ค๊ณ„ ์ค‘์ž„์„ ๋ฐํ˜”๊ณ , ๊ทธ ์ฝ”๋“œ๋„ค์ž„์ด ์ž์ด์šฐ์Šค(Zaius)๋ผ๋Š” ๊ฒƒ๋„ ๊ณต๊ฐœํ–ˆ์—ˆ์Šต๋‹ˆ๋‹ค.

๊ตฌ๊ธ€ ๋ถ€์‚ฌ์žฅ์ธ ๋ฉ”์–ด ๋จธํ˜ธ๋‹ˆ(Maire Mahoney)๋Š” ์˜ฌํ•ด ํ–‰์‚ฌ์—์„œ Zaius๊ฐ€ ๊ตฌ๊ธ€ ๋ฐ์ดํ„ฐ์„ผํ„ฐ์— ํ”„๋กœ๋•์…˜์šฉ์œผ๋กœ ๋ฐฐ์น˜๋˜์–ด ์žˆ์œผ๋ฉฐ, ๊ทธ ์ˆซ์ž๋ฅผ ๊ณ„์† ๋Š˜๋ ค๊ฐ€๊ณ  ์žˆ๋‹ค๊ณ  ๋ฐํ˜”์Šต๋‹ˆ๋‹ค. ๋˜ํ•œ ์ด ํ”Œ๋žซํผ์ด “Google Strong”ํ•˜๋‹ค๋ผ๊ณ  ํ‰๊ฐ€ํ–ˆ๋Š”๋ฐ, ์ด ํ‘œํ˜„์€ ์•ˆ์ •์ ์ด๊ณ  ๊ฒฌ๊ณ ํ•˜๋‹ค๋Š” ๋œป์ด๋ผ๊ณ  ์„ค๋ช…ํ–ˆ์Šต๋‹ˆ๋‹ค.

๊ตฌ๊ธ€์ด POWER9์˜ ์–ด๋–ค ์ ์„ ๋งˆ์Œ์— ๋“ค์–ดํ•˜๋Š”์ง€์— ๋Œ€ํ•ด์„œ ๋จธํ˜ธ๋‹ˆ๋Š” 3๊ฐ€์ง€ ์‚ฌํ•ญ์„ ์ด์•ผ๊ธฐํ–ˆ์Šต๋‹ˆ๋‹ค.

1) ํ•ต์‹ฌ ๊ตฌ๊ธ€ ๊ฒ€์ƒ‰ ์—…๋ฌด๋ฅผ ์œ„ํ•œ ๋” ๋งŽ์€ ์ฝ”์–ด์™€ thread
: ์ด๋Š” Intel x86์˜ hyperthreading์—์„œ๋Š” HW thread๊ฐ€ 2๊ฐœ ๋ฐ–์— ๋‚˜์˜ค์ง€ ์•Š๋Š” ๊ฒƒ์— ๋น„ํ•ด POWER9์˜ SMT๋Š” 4๊ฐœ ํ˜น์€ 8๊ฐœ์˜ HW thread๋ฅผ ์ œ๊ณตํ•˜๋Š” ๊ฒƒ์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค. ์ด๋Š” ๋‹ค์ˆ˜์˜ ์‚ฌ์šฉ์ž์—๊ฒŒ ์„œ๋น„์Šค๋ฅผ ์ œ๊ณตํ•ด์•ผ ํ•˜๋Š” ๊ตฌ๊ธ€ ๊ฒ€์ƒ‰ ์—…๋ฌด์— ์žˆ์–ด ํŠนํžˆ ๋„์›€์ด ๋ฉ๋‹ˆ๋‹ค.

2) RNN ๊ธฐ๊ณ„ ํ•™์Šต์„ ์œ„ํ•œ ๋” ํฐ ๋ฉ”๋ชจ๋ฆฌ ๋Œ€์—ญํญ
: ๊ฐ€๋ น Intel E5-2698 v4(Broadwell)์˜ ๊ฒฝ์šฐ ์†Œ์ผ“๋‹น 76.8GB/s์˜ ๋ฉ”๋ชจ๋ฆฌ ๋Œ€์—ญํญ์„ ๊ฐ€์ง€์ง€๋งŒ (์—ฌ๊ธฐ๋ฅผ ํด๋ฆญ), ๋™๊ธ‰ 2-socket์šฉ POWER9 ํ”„๋กœ์„ธ์„œ๋Š” ์†Œ์ผ“๋‹น 120GB/s์˜ ๋ฉ”๋ชจ๋ฆฌ ๋Œ€์—ญํญ์„ ์ž๋ž‘(์—ฌ๊ธฐ๋ฅผ ํด๋ฆญ)ํ•ฉ๋‹ˆ๋‹ค. ์ด ๋ถ€๋ถ„์ด ํŠนํžˆ ๊ธฐ๊ณ„ ๋ฒˆ์—ญ ๋“ฑ์— ์‚ฌ์šฉ๋˜๋Š” RNN ๊ธฐ๊ณ„ ํ•™์Šต์—์„œ ๋งค์šฐ ์œ ํšจํ•˜๋‹ค๊ณ  ๊ตฌ๊ธ€์€ ํŒ๋‹จํ•˜๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.

3) OpenCAPI ๊ฐ€์† bus์— ์ž๋ฆฌ์žก์€ ๋” ๋น ๋ฅด๊ณ  ๋” ๊ฐœ๋ฐฉ์ ์ธ flash NAND
: ‘OpenCAPI ๊ฐ€์† bus’๋ผ๊ณ  ํ•˜๋Š” ๊ฒƒ์€ POWER9์— on-chip ํ˜•ํƒœ๋กœ ๋‚ด์žฅ๋œ 25G link๋“ค์„ ์ด์•ผ๊ธฐํ•˜๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์›๋ž˜ IBM ๋‚ด์—์„œ์˜ ์ฝ”๋“œ๋ช…์ด Bluelink์˜€๋˜ ์ด HW ๊ธฐ์ˆ ์€ PCIe๋ฅผ ๋Œ€์ฒดํ•˜์—ฌ GPU, FPGA, ASIC ๋ฐ storage-class memory ๋“ฑ์„ low latency high bandwidth๋กœ ์—ฐ๊ฒฐํ•˜๊ธฐ ์œ„ํ•œ ํ•˜๋“œ์›จ์–ด ๋ฒ„์Šค ๊ธฐ์ˆ ์ด๋ผ๊ณ  ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. POWER9 ํ”„๋กœ์„ธ์„œ์—๋Š” ์ด๋Ÿฐ 25G link๋“ค์ด ์ตœ๋Œ€ 48-lane๊นŒ์ง€ ๋‚ด์žฅ๋˜๋Š”๋ฐ, ์ด๋“ค์€ PCIe Gen4 lane ์™ธ์— ์ถ”๊ฐ€๋กœ ์žฅ์ฐฉ๋˜๋Š” ๊ฒƒ์ด๋ฉฐ, ํŠนํžˆ GPU๋‚˜ FPGA์™€ ๊ฐ™์€ ๊ฐ€์†๊ธฐ๋ฅผ ์œ„ํ•œ ์ตœ๊ณ ์˜ ํ”„๋กœ์„ธ์„œ๋ฅผ ์ž์ฒ˜ํ•˜๋Š” POWER9์—์„œ ๊ฐ€์žฅ ์ž๋ž‘ํ•˜๋Š” ๊ธฐ์ˆ ์ด๊ธฐ๋„ ํ•ฉ๋‹ˆ๋‹ค. ์ด ๊ธฐ์ˆ ์€ AMD, NVIDIA, HPE ๋ฐ Dell-EMC ๋“ฑ ์ฃผ์š” ๋ฒค๋”๋“ค์ด ๋ชจ๋‘ ์ฐธ์—ฌํ•˜๋Š” OpenCAPI.org๋ฅผ ํ†ตํ•ด ๋ชจ๋“  CPU ์•„ํ‚คํ…์ฒ˜์—์„œ ํ‘œ์ค€์ ์œผ๋กœ ์‚ฌ์šฉํ•˜๋Š” ๊ฐœ๋ฐฉํ˜• ๊ธฐ์ˆ ๋กœ ๋ฐœ์ „๋˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.

1๋ฒˆ์€ ์›๋ž˜๋ถ€ํ„ฐ ์ „ํ†ต์ ์ธ POWER ์•„ํ‚คํ…์ฒ˜์˜ ์žฅ์ ์ด์—ˆ์œผ๋‹ˆ ๋ณ„๋กœ ํŠน๋ณ„ํ•œ ์ ์€ ์—†์Šต๋‹ˆ๋‹ค.

2๋ฒˆ์˜ ๊ฒฝ์šฐ ๊ตฌ๊ธ€์ด ๊ธฐ๊ณ„ ๋ฒˆ์—ญ(machine translation) ์„œ๋น„์Šค๋ฅผ ์ œ๊ณตํ•œ๋‹ค๋Š” ์ ์—์„œ ํŠนํžˆ ํฅ๋ฏธ๋กญ์Šต๋‹ˆ๋‹ค. ๊ตฌ๊ธ€์€ 2016๋…„์— RNN์„ ์ด์šฉํ•œ ๊ธฐ๊ณ„ ๋ฒˆ์—ญ ์—ฐ๊ตฌ์— ์ฐฉ์ˆ˜ํ–ˆ๋‹ค๊ณ  ๋ฐํžŒ ๋ฐ” (์—ฌ๊ธฐ๋ฅผ ํด๋ฆญ) ์žˆ์Šต๋‹ˆ๋‹ค. RNN์€ ์ด๋ฏธ์ง€ ์ธ์‹์— ๋งŽ์ด ์“ฐ์ด๋Š” CNN๊ณผ๋Š” ๋‹ฌ๋ฆฌ CPU-memory ๊ฐ„์˜ ๋Œ€์—ญํญ์ด ๋งŽ์ด ์‚ฌ์šฉ๋˜๋Š”๋ฐ (์—ฌ๊ธฐ๋ฅผ ํด๋ฆญ), Intel x86 ๋Œ€๋น„ CPU-memory ๋Œ€์—ญํญ์ด ์›”๋“ฑํ•˜๋‹ค๋Š” ์ ์—์„œ ๊ตฌ๊ธ€์ด POWER9์— ์ฃผ๋ชฉํ•œ ๊ฒƒ์œผ๋กœ ๋ณด์ž…๋‹ˆ๋‹ค.

3๋ฒˆ์€ ๋”์šฑ ํฅ๋ฏธ๋กญ์Šต๋‹ˆ๋‹ค. ๊ตฌ๊ธ€์ด OpenCAPI๋ฅผ ์ด์šฉํ•œ flash NAND ์‚ฌ์šฉ์— ๊ด€์‹ฌ์ด ์žˆ๊ฑฐ๋‚˜ ๋˜๋Š” ์ด๋ฏธ ์‚ฌ์šฉํ•˜๊ณ  ์žˆ๋‹ค๋Š” ๊ฒƒ์„ ๋ฐํžŒ ๊ฒƒ์ด๊ธฐ ๋•Œ๋ฌธ์ž…๋‹ˆ๋‹ค. OpenCAPI ์ปจ์†Œ์‹œ์—„์— ์ฐธ๊ฐ€ํ•œ Mellanox, Nallatech, Xilinx ๋“ฑ์˜ ์—ฌ๋Ÿฌ ์—…์ฒด๋“ค์ด ์ด๋ฒˆ OpenPOWER Summit 2018 ํ–‰์‚ฌ์—์„œ ๋‹ค์–‘ํ•œ FPGA ๋“ฑ์˜ ๊ด€๋ จ ์ œํ’ˆ์„ ๋‚ด๋†“๊ธฐ๋„ ํ–ˆ์Šต๋‹ˆ๋‹ค๋งŒ, ์ด๋ ‡๊ฒŒ ๊ตฌ๊ธ€์ด ์‹ค์งˆ์ ์ธ use case๋ฅผ ๊ฐ€์ง€๊ณ  ์žˆ๋‹ค๋Š” ๊ฒƒ์€ ์˜๋ฏธํ•˜๋Š” ๋ฐ”๊ฐ€ ํฝ๋‹ˆ๋‹ค.

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OpenCAPI ์ฃผ์š” ํšŒ์›์‚ฌ๋“ค ์ค‘ ์ผ๋ถ€ (์ถœ์ฒ˜ http://opencapi.org/membership/current-members)

OpenCAPI ์ฃผ์š” ์†์„ฑ (์ถœ์ฒ˜ http://opencapi.org/wp-content/uploads/2016/09/OpenCAPI-Exhibit-SC17.pdf)

์ž์„ธํ•œ ์†Œ์‹์€ ์•„๋ž˜์˜ ํฌ๋ธŒ์Šค์ง€ ๋ณธ๋ฌธ์„ ์ฝ์–ด๋ณด์‹œ๊ธฐ ๋ฐ”๋ž๋‹ˆ๋‹ค.

https://www.forbes.com/sites/patrickmoorhead/2018/03/19/headed-into-its-fifth-year-openpower-has-momentum-into-the-power9-generation

ํ† ๋ก  ์ฐธ๊ฐ€

์ด๋ฉ”์ผ์€ ๊ณต๊ฐœ๋˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ํ•„์ˆ˜ ์ž…๋ ฅ์ฐฝ์€ * ๋กœ ํ‘œ์‹œ๋˜์–ด ์žˆ์Šต๋‹ˆ๋‹ค.