birliklarida aniqlash qiyinchilik tug‗dirmaydi.
148
Tor 500 ro‗yxatini tuzish uchun ham LINPACK testlaridan foydalaniladi
(dunyodagi eng quvvatli besh yuzta hisoblash tizimi). Bu ro‗yxatni Internetda
http://www.top500.org.
manzil orqali topish mumkin. 4.1-jadvalda 2015-yilning
birinchi yarmi holati uchun ro‗yxatdan namuna keltirilgan. Bu 4.1-jadvalning
birinchi ustunida tizimning reytingdagi holati nomeri; ikkinchi ustunida ishlab
chiqaruvchi davlat berilgan; uchinchi ustunida tizim nomi, protsessor arxitekturasi,
operatsion tizimi keltirilgan; to‗rtinchi ustunda, beshinchi ustunda esa ; oltinchi
ustunda ; yettinchi ustunda axborotlar keltirilgan.
RANK SITE
SYSTEM
CORES
RMAX
(TFLOP/S)
RPEAK
(TFLOP/S)
POWER
(KW)
1
National Super
Computer Center in
Guangzhou
China
Tianhe-2
(MilkyWay-2)
-
TH-IVB-FEP
Cluster, Intel
Xeon E5-2692
12C 2.200GHz,
TH Express-2,
Intel Xeon Phi
31S1P
NUDT
3,120,000 33,862.7
54,902.4
17,808
2
DOE/SC/Oak Ridge
National Laboratory
United States
Titan
-Cray XK7
, Opteron 6274
16C 2.200GHz,
Cray Gemini
interconnect,
NVIDIA K20x
Cray Inc.
560,640
17,590.0
27,112.5
8,209
3
DOE/NNSA/LLNL
United States
Sequoia
-
BlueGene/Q,
Power BQC 16C
1,572,864 17,173.2
20,132.7
7,890
149
RANK SITE
SYSTEM
CORES
RMAX
(TFLOP/S)
RPEAK
(TFLOP/S)
POWER
(KW)
1.60 GHz,
Custom
IBM
101
Victorian Life
Sciences
Computation
Initiative
Australia
Avoca-
BlueGene/Q,
Power BQC 16C
1.60GHz,
Custom
IBM
65,536
715.6
838.9
329
102
Max-Planck-
Gesellschaft
MPI/IPP
Germany
iDataPlex
DX360M4, Intel
Xeon E5-2680v2
10C 2.800GHz,
Infiniband,
NVIDIA K20x
IBM
15,840
709.7
1,013.1
270
103
National Centers for
Environment
Prediction
United States
Tide-iDataPlex
DX360M4,
Xeon E5-2670
8C 2.600GHz,
Infiniband FDR
IBM
37,312
705.9
776.1
775
498
Government
United States
Cray XT5 QC
2.4 GHz
Cray Inc.
20,960
165.6
201.2
499
Banking (M)
United States
Cluster Platform
3000 BL460c
Gen8, Xeon E5-
2660 8C
13,376
165.1
235.4
150
RANK SITE
SYSTEM
CORES
RMAX
(TFLOP/S)
RPEAK
(TFLOP/S)
POWER
(KW)
2.2GHz, 10G
Ethernet
Hewlett-Packard
500
E-Commerce
United States
xSeries
x3650M3
Cluster, Xeon
E5649 6C
2.53GHz,
Gigabit Ethernet
IBM
29,244
164.8
295.9
887
Livermorsk sikllari
. LINPACK usulida hisoblash tizimini testlashda faqat
bitta toifadagi masalada (tor doiradagi) tizimning tezlik ko‗rsatkichlarini sinash
amalga oshiriladi. Amaliyotda esa masalalar juda ham turli-tumandir, shu
jumladan hisoblash turiga mansub bo‗lganlari ham. Kompyuterning boshqa
toifadagi masalalarni yechishdagi imkoniyatlarini aniqlash uchun real dasturlardan
foydalanish taklif etildi, yaʻni turli hisoblash usullari ishlatilgan dasturlarda
testlash orqali. Unumdorlikni o‗lchashning bunday tizimlaridan biri
Livermorsk
sikllari
deb ataluvchi usul orqali amalga oshiriladi, Fortran tilidagi dasturning juda
yuqori e‗tibor bilan tanlangan qismlaridan tashkil topgan bo‗lib, u Livermorsk
milliy laboratoriyasida (AQSH) foydalaniladi.
Testlashning bu usulida siklning 24 operatorlardan iborat to‗plamida
testlanadi, unda gidrodinamika, yadro fizikasi va shunga o‗xshash ko‗p
uchraydigan hisoblash masalalari yechiladigan dasturning eng asosiy, jiddiy
qismidan iborat bo‗ladi. Muhokama qilinayotgan tizim dasturlarning asosiy
(yadro) qismini ishlatilishi munosabati bilan yana
LFK test
(Livermore Fortran
151
Kernels–livermorskiye fortranovskiye yadra–livermorskli fortranning yadrolari)
nomi bilan ham taniqlidir.
Livermorsk sikllari LINPACK testlariga nisbatan ancha yuqori aniqlikdagi
malumotlarni beradi, chunki testlashda yagona hisoblash usulidan iborat bo‗lgan
bitta dastur ishtirok etmaydi, unda bir necha usullarni joriy etgan dasturlar guruhi
ishtirok etadi. Shu bilan bir qatorda testlash dasturlari yana bir xil sohaga mansub
muammolarga bag‗ishlangan dasturlardan iborat va juda muhum toifadagi
ilovalarga mansub bo‗lsa ham, ammo lekin o‗xshash jihatlari ko‗p.
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