2+1 flavor full QCD configurations by PACS-CS

The 2+1 flavor full QCD configurations listed below are generated by the PACS-CS Collaboration on supercomputers




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 beta = 6/g2=1.90, corresponding to lattice spacing of a \approx 0.09 fm. The scale a is fixed by experimental values of Mpi, MK, MOmega. The lattice size is 323x64, corresponding to the physical spatial size of about 3 fm. We have six ensembles corresponding to six quark mass combinations (Kud,Ks). Pseudoscalar meson masses range from 702 MeV to 156 MeV.

Simulations are carried out with (mass-preconditioned) domain-decomposed hybrid Monte Carlo ((MP)DDHMC) algorithm for u,d quarks and UV-filtered polynomial hybrid Monte Carlo (UVPHMC) algorithm for s quark. The table below shows values of a, La and simulation parameters, tau: trajectory length, (N0,N1,N2,N3): numbers of steps for one trajectory, ρ: mass precondition parameter, Npoly: polynomial order for PHMC and Replay: on/off of replay trick. For details, see the paper cited below.

beta lattice
size
cSW a [fm] La [fm] Kud
Ks
tau (N0,N1,N2,N3) ρ Npoly Replay
1.90 323x64 1.715 0.0907(13) 2.902(42) 0.13700
0.13640
0.5 (4,4,10) - 180 on
0.13727
0.13640
0.5 (4,4,14) - 180 on
0.13754
0.13640
0.5 (4,4,20) - 180 on
0.13754
0.13660
0.5 (4,4,28) - 220 on
0.13770
0.13640
0.25 (4,4,16) - 180 on
0.13781
0.13640
0.25 (4,4,4,6)
(4,4,6,6)
0.9995 200 off

Configuration ensembles

The table below gives a list of ensembles of configurations. A consecutive set of (MP)DDHMC+UVPHMC trajectories for a given value of beta, cSW, Kud, Ks on a particular lattice size is called an ensemble. A series name (a, b, gM, hM etc) is given to distinguish multiple MPDDHMC+UVPHMC runs.

ensemble # beta Kud Ks cSW lattice
size
series traj. range missing
traj
stored at
every
(traj)
#config total
#config
size/config
[GB]
total
[TB]
1 1.90 0.13700 0.13640 1.715 323x64 b 002510-006500 004300 10 399 399 1.1250.438
2 1.90 0.13727 0.13640 1.715 323x64 b 001310-005300 -- 10 400 400 1.1250.439
3 1.90 0.13754 0.13640 1.715 323x64 a
b
002510-004500
002510-005000
--
--
10 200
250
450 1.1250.494
4 1.90 0.13754 0.13660 1.715 323x64 b
c
d
e
000470-001460
000270-001260
000010-001000
000010-001000
--
--
--
--
10 100
100
100
100
400 1.1250.439
5 1.90 0.13770 0.13640 1.715 323x64 a
b
001880-005870
001780-005770
--
--
10 400
400
800 1.1250.879
6 1.90 0.13781 0.13640 1.715 323x64 gM
hM
iM
jM
kM
001200-002060
001240-001660
000870-001730
000260-001120
001090-001950
--
--
--
--
--
20 44
22
44
44
44
198 1.1250.218

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/PACS-CS/RCNF2+1/
and classified in terms of β and κud, κs. For example, the directory
  /gfarm/public/ILDG/JLDG/PACS-CS/RCNF2+1/RC32x64_B1900/Kud01370000Ks01364000
contains configurations at β=1.900 and κud=0.1370000 κs=0.1364000. Filename is the same as basename of dataLFN. All ensemble and configuration XML files can be found in
  /gfarm/public/ILDG/JLDG/PACS-CS/RCNF2+1/QCDml


Last update: 03 Sept. 2009, T.Yoshie