2+1 flavor full QCD configurations by CP-PACS+JLQCD

The 2+1 flavor full QCD configurations listed below are generated by the CP-PACS and JLQCD Collaborations on various supercomputers including




Simulation parameters

These gauge configurations are generated with a renormalization-group improved gauge action and a non-perturbatively O(a) improved clover quark action at three values of beta = 6/g2, corresponding to lattice spacings of a \approx 0.12, 0.10 and 0.07 fm (a2 \approx 0.015, 0.010 and 0.05 fm2). Note that the discretization errors are of the form O(a2) because the action is non-perturbatively O(a) improved. The scale a is fixed by experimental values of Mpi, Mrho, MK (or Mphi) using a general quadratic chiral extrapolation in terms of VWI quark masses.

The sizes of lattice are chosen to be 163x32, 203x40 and 283x56 so that the physical spatial size is kept constant at La \approx 2.0 fm. On each lattice, simulations are carried out at five values of light sea qaurk masses corresponding to mPS(LL)/mV(LL) \approx 0.78, 0.75, 0.7, 0.65 and 0.6, and two values of strange sea quark masses sandwitching the physical point mPS(SS)/mV(SS) \approx 0.68, where L and S stand for light and strange sea quarks.

Simulation parameters and values of a, La and mPS/mV are summarized in the table below.

beta lattice
size
cSW a [fm]

K-input
phi-input
La [fm]

K-input
phi-input
KL
KS mPS(LL)/mV(LL)
mPS(SS)/mV(SS)
#traj (thermalized)
\delta\tau
Npoly
1.83 163x32 1.7610 0.1209(16)
0.1219(19)
1.934(26)
1.950(30)
0.136550.137100.137600.138000.13825
0.13710 0.7772(13)
0.7522(15)
7000
1/80
80
0.7524(21)
0.7524(21)
7000
1/85
80
0.7076(18)
0.7414(17)
7000
1/100
100
0.6629(22)
0.7365(16)
8000
1/120
110
0.6213(24)
0.7343(15)
8000
1/140
120
0.13760 0.7769(14)
0.7235(19)
7000
1/90
110
0.7448(14)
0.7128(16)
8600
1/100
110
0.7033(18)
0.7033(18)
8000
1/110
120
0.6525(23)
0.6941(20)
8100
1/120
130
0.6083(32)
0.6884(21)
8100
1/150
150
1.90 203x40 1.7150 0.0982(19)
0.0983(19)
1.964(38)
1.966(38)
0.135800.136100.136400.136800.13700
0.13580 0.7673(15)
0.7673(15)
5000
1/125
110
0.7435(18)
0.7647(17)
6000
1/125
110
0.7204(19)
0.7687(15)
7600
1/140
110
0.6701(27)
0.7673(17)
8000
1/160
110
0.6394(21)
0.7695(15)
7900
1/180
110
0.13640 0.7667(16)
0.7211(21)
5200
1/125
140
0.7444(15)
0.7182(17)
8000
1/125
140
0.7145(16)
0.7145(16)
9000
1/140
140
0.6630(21)
0.7127(17)
9200
1/160
140
0.6243(28)
0.7102(20)
7900
1/180
140
2.05
283x56 1.6280 0.0685(26)
0.0687(25)
1.918(73)
1.924(70)
0.134700.135100.135400.135500.13560
0.13510 0.7757(26)
0.7273(29)
6000
1/175
200
0.7316(24)
0.7316(24)
6000
1/195
200
0.6874(30)
0.7395(23)
6000
1/225
200
0.6611(34)
0.7361(25)
6500
1/235
200
0.6337(38)
0.7377(28)
6500
1/250
200
0.13540 0.7790(23)
0.6821(32)
6000
1/175
250
0.7341(29)
0.6820(39)
6000
1/195
250
0.6899(34)
0.6899(34)
6000
1/225
250
0.6679(45)
0.6899(43)
6500
1/235
250
0.6361(47)
0.6852(46)
6500
1/250
250

Configurations are generated with the Hybrid Monte Carlo (HMC) algorithm for the light sea quarks and the Polynomial HMC (PHMC) algorithm for the strange sea quark. See

We adopt an even/odd preconditioned BiCGStab algorithm to invert quark matrices during the HMC+PHMC update.

For the clover coefficient cSW we adopt a nonperturbatively improved value obtained by a Schroedinger functional method. See

for details. The leading scaling violation with our action is O(a2).

Light hadron measurements are done every 10 unit-length HMC+PHMC trajectories. Errors are estimated by a jack-knife method with the bin-size of 100 trajectories. For more details, see

Configuration ensembles

The table below gives a list of ensembles of configurations. A consecutive set of HMC+PHMC trajectories for a given value of beta, cSW, KL, KS on a particular lattice size is called an ensemble. A series name (1, 2, 3, etc) is given to distinguish multiple HMC+PHMC runs.

ensemble # beta KL KS cSW lattice
size
series traj. range missing traj #config total
#config
size/config
[MB]
total
[GB]
1 1.83 0.13655 0.13710 1.7610 163x32 1
2
3
000410-004400
000510-001500
000410-002400
--
--
--
400
100
200
700 7249
2 1.83 0.13710 0.13710 1.7610 163x32 1
2
3
000410-001800
000410-004600
000510-001900
--
--
--
140
420
140
700 7249
3 1.83 0.13760 0.13710 1.7610 163x32 1
2
3
000410-005400
000510-001500
000410-001400
--
--
--
500
100
100
700 7249
4 1.83 0.13800 0.13710 1.7610 163x32 1
2
000410-005900
000510-003000
--
--
550
250
800 7256
5 1.83 0.13825 0.13710 1.7610 163x32 1
2
000410-006500
000510-002400
--
--
610
190
800 7256
6 1.83 0.13655 0.13760 1.7610 163x32 1
2
000410-002400
000510-005500
--
--
200
500
700 7249
7 1.83 0.13710 0.13760 1.7610 163x32 1
2
3
000410-001400
000410-002400
000710-006300
--
--
--
100
200
560
860 7260
8 1.83 0.13760 0.13760 1.7610 163x32 1
2
3
000410-001400
000410-001400
000510-006500
--
--
--
100
100
600
800 7256
9 1.83 0.13800 0.13760 1.7610 163x32 1
2
3
000410-001400
000410-002700
000510-005300
--
--
--
100
230
480
810 7257
10 1.83 0.13825 0.13760 1.7610 163x32 1
2
000410-007300
000510-001700
--
--
690
120
810 7257
ensemble # beta KL KS cSW lattice
size
series traj. range missing traj #config total
#config
size/config
[MB]
total
[GB]
11 1.90 0.13580 0.13580 1.7150 203x40 1
2
000510-003500
000600-002600
002900
--
299
201
500 17686
12 1.90 0.13610 0.13580 1.7150 203x40 1 000410-006400 -- 600600 176103
13 1.90 0.13640 0.13580 1.7150 203x40 1
2
3
000600-005850
000410-001570
000410-001570
--
--
--
526
117
117
760 176131
14 1.90 0.13680 0.13580 1.7150 203x40 1
2
3
000410-006700
000410-001350
000260-001000
--
--
630
95
75
800 176138
15 1.90 0.13700 0.13580 1.7150 203x40 1
2
000510-004500
000610-004500
--
--
400
390
790 176136
16 1.90 0.13580 0.13640 1.7150 203x40 1
2
000510-003200
000410-002900
--
--
270
250
520 17689
17 1.90 0.13610 0.13640 1.7150 203x40 1
2
000410-006400
000410-002400
--
--
600
200
800 176138
18 1.90 0.13640 0.13640 1.7150 203x40 1
2
3
4
000590-006980
000410-001000
000510-001300
000510-001700
--
--
--
--
640
60
80
120
900 176155
19 1.90 0.13680 0.13640 1.7150 203x40 1
2
3
000570-007930
000510-001460
000510-001370
--
--
--
737
96
87
920 176158
20 1.90 0.13700 0.13640 1.7150 203x40 1
2
3
4
000510-003210
000560-003840
000410-001400
000510-001400
--
--
--
--
271
329
100
90
790 176136
ensemble # beta KL KS cSW lattice
size
series traj. range missing traj #config total
#config
size/config
[MB]
total
[GB]
21 2.05 0.13470 0.13510 1.6280 283x56 1
2
000510-001300
000510-005700
--
--
80
520
600 675396
22 2.05 0.13510 0.13510 1.6280 283x56 1
2
000510-004900
000110-001700
--
--
440
160
600 675396
23 2.05 0.13540 0.13510 1.6280 283x56 1
2
000510-004800
000110-001800
--
--
430
170
600 675396
24 2.05 0.13550 0.13510 1.6280 283x56 1
2
000510-005000
000110-002100
--
--
450
200
650 675428
25 2.05 0.13560 0.13510 1.6280 283x56 1
2
000510-004900
000110-002200
--
--
440
210
650 675428
26 2.05 0.13470 0.13540 1.6280 283x56 1
2
000510-001600
000510-005400
--
--
110
490
600 675396
27 2.05 0.13510 0.13540 1.6280 283x56 1
2
000510-004900
000110-001700
--
--
440
160
600 675396
28 2.05 0.13540 0.13540 1.6280 283x56 1
2
000510-004800
000110-001800
--
--
430
170
600 675396
29 2.05 0.13550 0.13540 1.6280 283x56 1
2
000510-005000
000110-002100
--
--
450
200
650 675428
30 2.05 0.13560 0.13540 1.6280 283x56 1
2
000510-004900
000110-002200
--
--
440
210
650 675428

Naming of Ensembles and Configurations (for ILDG users)

An ensemble is identified by markovChainURI named e.g. as A configuration is labeled by dataLFN named e.g. as Basename of the dataLFN is formmated as
RgClover spatial size x temporal size _ \beta\kappa_ud\kappa_s\c_sw - series - trajectory number

To get full list of markovChainURIs and LFNs, please use QCDml faceted navigation or follow this link.

Location of Configurations (for JLDG users)

Configurations are placed in the gfarm directory
  /gfarm/public/ILDG/JLDG/CP-PACS+JLQCD/RCNF2+1/
and classified in terms of β and κud, κs. For example, the directory
  /gfarm/public/ILDG/JLDG/CP-PACS+JLQCD/RCNF2+1/RC16x32_B1830/Kud013655Ks013710
contains configurations at β=1.830 and κud=0.13655 κs=0.13710. Filename is the same as basename of dataLFN. All ensemble and configuration XML files can be found in
  /gfarm/public/ILDG/JLDG/CP-PACS+JLQCD/RCNF2+1/QCDml


Last update: 03 Sept. 2009, T.Yoshie